aboutsummaryrefslogtreecommitdiff
path: root/src/wallet/rpc/spend.cpp
blob: 6060f017ce9944f063ad74254bf65eba9d9eadfd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
// Copyright (c) 2011-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <consensus/validation.h>
#include <core_io.h>
#include <key_io.h>
#include <policy/policy.h>
#include <rpc/rawtransaction_util.h>
#include <rpc/util.h>
#include <script/script.h>
#include <util/fees.h>
#include <util/rbf.h>
#include <util/translation.h>
#include <util/vector.h>
#include <wallet/coincontrol.h>
#include <wallet/feebumper.h>
#include <wallet/fees.h>
#include <wallet/rpc/util.h>
#include <wallet/spend.h>
#include <wallet/wallet.h>

#include <univalue.h>


namespace wallet {
std::vector<CRecipient> CreateRecipients(const std::vector<std::pair<CTxDestination, CAmount>>& outputs, const std::set<int>& subtract_fee_outputs)
{
    std::vector<CRecipient> recipients;
    for (size_t i = 0; i < outputs.size(); ++i) {
        const auto& [destination, amount] = outputs.at(i);
        CRecipient recipient{destination, amount, subtract_fee_outputs.contains(i)};
        recipients.push_back(recipient);
    }
    return recipients;
}

static void InterpretFeeEstimationInstructions(const UniValue& conf_target, const UniValue& estimate_mode, const UniValue& fee_rate, UniValue& options)
{
    if (options.exists("conf_target") || options.exists("estimate_mode")) {
        if (!conf_target.isNull() || !estimate_mode.isNull()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Pass conf_target and estimate_mode either as arguments or in the options object, but not both");
        }
    } else {
        options.pushKV("conf_target", conf_target);
        options.pushKV("estimate_mode", estimate_mode);
    }
    if (options.exists("fee_rate")) {
        if (!fee_rate.isNull()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Pass the fee_rate either as an argument, or in the options object, but not both");
        }
    } else {
        options.pushKV("fee_rate", fee_rate);
    }
    if (!options["conf_target"].isNull() && (options["estimate_mode"].isNull() || (options["estimate_mode"].get_str() == "unset"))) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Specify estimate_mode");
    }
}

std::set<int> InterpretSubtractFeeFromOutputInstructions(const UniValue& sffo_instructions, const std::vector<std::string>& destinations)
{
    std::set<int> sffo_set;
    if (sffo_instructions.isNull()) return sffo_set;
    if (sffo_instructions.isBool()) {
        if (sffo_instructions.get_bool()) sffo_set.insert(0);
        return sffo_set;
    }
    for (const auto& sffo : sffo_instructions.getValues()) {
        if (sffo.isStr()) {
            for (size_t i = 0; i < destinations.size(); ++i) {
                if (sffo.get_str() == destinations.at(i)) {
                    sffo_set.insert(i);
                    break;
                }
            }
        }
        if (sffo.isNum()) {
            int pos = sffo.getInt<int>();
            if (sffo_set.contains(pos))
                throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid parameter, duplicated position: %d", pos));
            if (pos < 0)
                throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid parameter, negative position: %d", pos));
            if (pos >= int(destinations.size()))
                throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid parameter, position too large: %d", pos));
            sffo_set.insert(pos);
        }
    }
    return sffo_set;
}

static UniValue FinishTransaction(const std::shared_ptr<CWallet> pwallet, const UniValue& options, const CMutableTransaction& rawTx)
{
    // Make a blank psbt
    PartiallySignedTransaction psbtx(rawTx);

    // First fill transaction with our data without signing,
    // so external signers are not asked to sign more than once.
    bool complete;
    pwallet->FillPSBT(psbtx, complete, SIGHASH_DEFAULT, /*sign=*/false, /*bip32derivs=*/true);
    const TransactionError err{pwallet->FillPSBT(psbtx, complete, SIGHASH_DEFAULT, /*sign=*/true, /*bip32derivs=*/false)};
    if (err != TransactionError::OK) {
        throw JSONRPCTransactionError(err);
    }

    CMutableTransaction mtx;
    complete = FinalizeAndExtractPSBT(psbtx, mtx);

    UniValue result(UniValue::VOBJ);

    const bool psbt_opt_in{options.exists("psbt") && options["psbt"].get_bool()};
    bool add_to_wallet{options.exists("add_to_wallet") ? options["add_to_wallet"].get_bool() : true};
    if (psbt_opt_in || !complete || !add_to_wallet) {
        // Serialize the PSBT
        DataStream ssTx{};
        ssTx << psbtx;
        result.pushKV("psbt", EncodeBase64(ssTx.str()));
    }

    if (complete) {
        std::string hex{EncodeHexTx(CTransaction(mtx))};
        CTransactionRef tx(MakeTransactionRef(std::move(mtx)));
        result.pushKV("txid", tx->GetHash().GetHex());
        if (add_to_wallet && !psbt_opt_in) {
            pwallet->CommitTransaction(tx, {}, /*orderForm=*/{});
        } else {
            result.pushKV("hex", hex);
        }
    }
    result.pushKV("complete", complete);

    return result;
}

static void PreventOutdatedOptions(const UniValue& options)
{
    if (options.exists("feeRate")) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Use fee_rate (" + CURRENCY_ATOM + "/vB) instead of feeRate");
    }
    if (options.exists("changeAddress")) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Use change_address instead of changeAddress");
    }
    if (options.exists("changePosition")) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Use change_position instead of changePosition");
    }
    if (options.exists("includeWatching")) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Use include_watching instead of includeWatching");
    }
    if (options.exists("lockUnspents")) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Use lock_unspents instead of lockUnspents");
    }
    if (options.exists("subtractFeeFromOutputs")) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Use subtract_fee_from_outputs instead of subtractFeeFromOutputs");
    }
}

UniValue SendMoney(CWallet& wallet, const CCoinControl &coin_control, std::vector<CRecipient> &recipients, mapValue_t map_value, bool verbose)
{
    EnsureWalletIsUnlocked(wallet);

    // This function is only used by sendtoaddress and sendmany.
    // This should always try to sign, if we don't have private keys, don't try to do anything here.
    if (wallet.IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Private keys are disabled for this wallet");
    }

    // Shuffle recipient list
    std::shuffle(recipients.begin(), recipients.end(), FastRandomContext());

    // Send
    auto res = CreateTransaction(wallet, recipients, /*change_pos=*/std::nullopt, coin_control, true);
    if (!res) {
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, util::ErrorString(res).original);
    }
    const CTransactionRef& tx = res->tx;
    wallet.CommitTransaction(tx, std::move(map_value), /*orderForm=*/{});
    if (verbose) {
        UniValue entry(UniValue::VOBJ);
        entry.pushKV("txid", tx->GetHash().GetHex());
        entry.pushKV("fee_reason", StringForFeeReason(res->fee_calc.reason));
        return entry;
    }
    return tx->GetHash().GetHex();
}


/**
 * Update coin control with fee estimation based on the given parameters
 *
 * @param[in]     wallet            Wallet reference
 * @param[in,out] cc                Coin control to be updated
 * @param[in]     conf_target       UniValue integer; confirmation target in blocks, values between 1 and 1008 are valid per policy/fees.h;
 * @param[in]     estimate_mode     UniValue string; fee estimation mode, valid values are "unset", "economical" or "conservative";
 * @param[in]     fee_rate          UniValue real; fee rate in sat/vB;
 *                                      if present, both conf_target and estimate_mode must either be null, or "unset"
 * @param[in]     override_min_fee  bool; whether to set fOverrideFeeRate to true to disable minimum fee rate checks and instead
 *                                      verify only that fee_rate is greater than 0
 * @throws a JSONRPCError if conf_target, estimate_mode, or fee_rate contain invalid values or are in conflict
 */
static void SetFeeEstimateMode(const CWallet& wallet, CCoinControl& cc, const UniValue& conf_target, const UniValue& estimate_mode, const UniValue& fee_rate, bool override_min_fee)
{
    if (!fee_rate.isNull()) {
        if (!conf_target.isNull()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both conf_target and fee_rate. Please provide either a confirmation target in blocks for automatic fee estimation, or an explicit fee rate.");
        }
        if (!estimate_mode.isNull() && estimate_mode.get_str() != "unset") {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both estimate_mode and fee_rate");
        }
        // Fee rates in sat/vB cannot represent more than 3 significant digits.
        cc.m_feerate = CFeeRate{AmountFromValue(fee_rate, /*decimals=*/3)};
        if (override_min_fee) cc.fOverrideFeeRate = true;
        // Default RBF to true for explicit fee_rate, if unset.
        if (!cc.m_signal_bip125_rbf) cc.m_signal_bip125_rbf = true;
        return;
    }
    if (!estimate_mode.isNull() && !FeeModeFromString(estimate_mode.get_str(), cc.m_fee_mode)) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, InvalidEstimateModeErrorMessage());
    }
    if (!conf_target.isNull()) {
        cc.m_confirm_target = ParseConfirmTarget(conf_target, wallet.chain().estimateMaxBlocks());
    }
}

RPCHelpMan sendtoaddress()
{
    return RPCHelpMan{"sendtoaddress",
                "\nSend an amount to a given address." +
        HELP_REQUIRING_PASSPHRASE,
                {
                    {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The bitcoin address to send to."},
                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The amount in " + CURRENCY_UNIT + " to send. eg 0.1"},
                    {"comment", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "A comment used to store what the transaction is for.\n"
                                         "This is not part of the transaction, just kept in your wallet."},
                    {"comment_to", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "A comment to store the name of the person or organization\n"
                                         "to which you're sending the transaction. This is not part of the \n"
                                         "transaction, just kept in your wallet."},
                    {"subtractfeefromamount", RPCArg::Type::BOOL, RPCArg::Default{false}, "The fee will be deducted from the amount being sent.\n"
                                         "The recipient will receive less bitcoins than you enter in the amount field."},
                    {"replaceable", RPCArg::Type::BOOL, RPCArg::DefaultHint{"wallet default"}, "Signal that this transaction can be replaced by a transaction (BIP 125)"},
                    {"conf_target", RPCArg::Type::NUM, RPCArg::DefaultHint{"wallet -txconfirmtarget"}, "Confirmation target in blocks"},
                    {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"unset"}, "The fee estimate mode, must be one of (case insensitive):\n"
                     "\"" + FeeModes("\"\n\"") + "\""},
                    {"avoid_reuse", RPCArg::Type::BOOL, RPCArg::Default{true}, "(only available if avoid_reuse wallet flag is set) Avoid spending from dirty addresses; addresses are considered\n"
                                         "dirty if they have previously been used in a transaction. If true, this also activates avoidpartialspends, grouping outputs by their addresses."},
                    {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB."},
                    {"verbose", RPCArg::Type::BOOL, RPCArg::Default{false}, "If true, return extra information about the transaction."},
                },
                {
                    RPCResult{"if verbose is not set or set to false",
                        RPCResult::Type::STR_HEX, "txid", "The transaction id."
                    },
                    RPCResult{"if verbose is set to true",
                        RPCResult::Type::OBJ, "", "",
                        {
                            {RPCResult::Type::STR_HEX, "txid", "The transaction id."},
                            {RPCResult::Type::STR, "fee_reason", "The transaction fee reason."}
                        },
                    },
                },
                RPCExamples{
                    "\nSend 0.1 BTC\n"
                    + HelpExampleCli("sendtoaddress", "\"" + EXAMPLE_ADDRESS[0] + "\" 0.1") +
                    "\nSend 0.1 BTC with a confirmation target of 6 blocks in economical fee estimate mode using positional arguments\n"
                    + HelpExampleCli("sendtoaddress", "\"" + EXAMPLE_ADDRESS[0] + "\" 0.1 \"donation\" \"sean's outpost\" false true 6 economical") +
                    "\nSend 0.1 BTC with a fee rate of 1.1 " + CURRENCY_ATOM + "/vB, subtract fee from amount, BIP125-replaceable, using positional arguments\n"
                    + HelpExampleCli("sendtoaddress", "\"" + EXAMPLE_ADDRESS[0] + "\" 0.1 \"drinks\" \"room77\" true true null \"unset\" null 1.1") +
                    "\nSend 0.2 BTC with a confirmation target of 6 blocks in economical fee estimate mode using named arguments\n"
                    + HelpExampleCli("-named sendtoaddress", "address=\"" + EXAMPLE_ADDRESS[0] + "\" amount=0.2 conf_target=6 estimate_mode=\"economical\"") +
                    "\nSend 0.5 BTC with a fee rate of 25 " + CURRENCY_ATOM + "/vB using named arguments\n"
                    + HelpExampleCli("-named sendtoaddress", "address=\"" + EXAMPLE_ADDRESS[0] + "\" amount=0.5 fee_rate=25")
                    + HelpExampleCli("-named sendtoaddress", "address=\"" + EXAMPLE_ADDRESS[0] + "\" amount=0.5 fee_rate=25 subtractfeefromamount=false replaceable=true avoid_reuse=true comment=\"2 pizzas\" comment_to=\"jeremy\" verbose=true")
                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    LOCK(pwallet->cs_wallet);

    // Wallet comments
    mapValue_t mapValue;
    if (!request.params[2].isNull() && !request.params[2].get_str().empty())
        mapValue["comment"] = request.params[2].get_str();
    if (!request.params[3].isNull() && !request.params[3].get_str().empty())
        mapValue["to"] = request.params[3].get_str();

    CCoinControl coin_control;
    if (!request.params[5].isNull()) {
        coin_control.m_signal_bip125_rbf = request.params[5].get_bool();
    }

    coin_control.m_avoid_address_reuse = GetAvoidReuseFlag(*pwallet, request.params[8]);
    // We also enable partial spend avoidance if reuse avoidance is set.
    coin_control.m_avoid_partial_spends |= coin_control.m_avoid_address_reuse;

    SetFeeEstimateMode(*pwallet, coin_control, /*conf_target=*/request.params[6], /*estimate_mode=*/request.params[7], /*fee_rate=*/request.params[9], /*override_min_fee=*/false);

    EnsureWalletIsUnlocked(*pwallet);

    UniValue address_amounts(UniValue::VOBJ);
    const std::string address = request.params[0].get_str();
    address_amounts.pushKV(address, request.params[1]);
    std::vector<CRecipient> recipients = CreateRecipients(
            ParseOutputs(address_amounts),
            InterpretSubtractFeeFromOutputInstructions(request.params[4], address_amounts.getKeys())
    );
    const bool verbose{request.params[10].isNull() ? false : request.params[10].get_bool()};

    return SendMoney(*pwallet, coin_control, recipients, mapValue, verbose);
},
    };
}

RPCHelpMan sendmany()
{
    return RPCHelpMan{"sendmany",
        "Send multiple times. Amounts are double-precision floating point numbers." +
        HELP_REQUIRING_PASSPHRASE,
                {
                    {"dummy", RPCArg::Type::STR, RPCArg::Default{"\"\""}, "Must be set to \"\" for backwards compatibility.",
                     RPCArgOptions{
                         .oneline_description = "\"\"",
                     }},
                    {"amounts", RPCArg::Type::OBJ_USER_KEYS, RPCArg::Optional::NO, "The addresses and amounts",
                        {
                            {"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The bitcoin address is the key, the numeric amount (can be string) in " + CURRENCY_UNIT + " is the value"},
                        },
                    },
                    {"minconf", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "Ignored dummy value"},
                    {"comment", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "A comment"},
                    {"subtractfeefrom", RPCArg::Type::ARR, RPCArg::Optional::OMITTED, "The addresses.\n"
                                       "The fee will be equally deducted from the amount of each selected address.\n"
                                       "Those recipients will receive less bitcoins than you enter in their corresponding amount field.\n"
                                       "If no addresses are specified here, the sender pays the fee.",
                        {
                            {"address", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "Subtract fee from this address"},
                        },
                    },
                    {"replaceable", RPCArg::Type::BOOL, RPCArg::DefaultHint{"wallet default"}, "Signal that this transaction can be replaced by a transaction (BIP 125)"},
                    {"conf_target", RPCArg::Type::NUM, RPCArg::DefaultHint{"wallet -txconfirmtarget"}, "Confirmation target in blocks"},
                    {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"unset"}, "The fee estimate mode, must be one of (case insensitive):\n"
                     "\"" + FeeModes("\"\n\"") + "\""},
                    {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB."},
                    {"verbose", RPCArg::Type::BOOL, RPCArg::Default{false}, "If true, return extra information about the transaction."},
                },
                {
                    RPCResult{"if verbose is not set or set to false",
                        RPCResult::Type::STR_HEX, "txid", "The transaction id for the send. Only 1 transaction is created regardless of\n"
                "the number of addresses."
                    },
                    RPCResult{"if verbose is set to true",
                        RPCResult::Type::OBJ, "", "",
                        {
                            {RPCResult::Type::STR_HEX, "txid", "The transaction id for the send. Only 1 transaction is created regardless of\n"
                "the number of addresses."},
                            {RPCResult::Type::STR, "fee_reason", "The transaction fee reason."}
                        },
                    },
                },
                RPCExamples{
            "\nSend two amounts to two different addresses:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"" + EXAMPLE_ADDRESS[0] + "\\\":0.01,\\\"" + EXAMPLE_ADDRESS[1] + "\\\":0.02}\"") +
            "\nSend two amounts to two different addresses setting the confirmation and comment:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"" + EXAMPLE_ADDRESS[0] + "\\\":0.01,\\\"" + EXAMPLE_ADDRESS[1] + "\\\":0.02}\" 6 \"testing\"") +
            "\nSend two amounts to two different addresses, subtract fee from amount:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"" + EXAMPLE_ADDRESS[0] + "\\\":0.01,\\\"" + EXAMPLE_ADDRESS[1] + "\\\":0.02}\" 1 \"\" \"[\\\"" + EXAMPLE_ADDRESS[0] + "\\\",\\\"" + EXAMPLE_ADDRESS[1] + "\\\"]\"") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("sendmany", "\"\", {\"" + EXAMPLE_ADDRESS[0] + "\":0.01,\"" + EXAMPLE_ADDRESS[1] + "\":0.02}, 6, \"testing\"")
                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    LOCK(pwallet->cs_wallet);

    if (!request.params[0].isNull() && !request.params[0].get_str().empty()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Dummy value must be set to \"\"");
    }
    UniValue sendTo = request.params[1].get_obj();

    mapValue_t mapValue;
    if (!request.params[3].isNull() && !request.params[3].get_str().empty())
        mapValue["comment"] = request.params[3].get_str();

    CCoinControl coin_control;
    if (!request.params[5].isNull()) {
        coin_control.m_signal_bip125_rbf = request.params[5].get_bool();
    }

    SetFeeEstimateMode(*pwallet, coin_control, /*conf_target=*/request.params[6], /*estimate_mode=*/request.params[7], /*fee_rate=*/request.params[8], /*override_min_fee=*/false);

    std::vector<CRecipient> recipients = CreateRecipients(
            ParseOutputs(sendTo),
            InterpretSubtractFeeFromOutputInstructions(request.params[4], sendTo.getKeys())
    );
    const bool verbose{request.params[9].isNull() ? false : request.params[9].get_bool()};

    return SendMoney(*pwallet, coin_control, recipients, std::move(mapValue), verbose);
},
    };
}

RPCHelpMan settxfee()
{
    return RPCHelpMan{"settxfee",
                "\nSet the transaction fee rate in " + CURRENCY_UNIT + "/kvB for this wallet. Overrides the global -paytxfee command line parameter.\n"
                "Can be deactivated by passing 0 as the fee. In that case automatic fee selection will be used by default.\n",
                {
                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The transaction fee rate in " + CURRENCY_UNIT + "/kvB"},
                },
                RPCResult{
                    RPCResult::Type::BOOL, "", "Returns true if successful"
                },
                RPCExamples{
                    HelpExampleCli("settxfee", "0.00001")
            + HelpExampleRpc("settxfee", "0.00001")
                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    LOCK(pwallet->cs_wallet);

    CAmount nAmount = AmountFromValue(request.params[0]);
    CFeeRate tx_fee_rate(nAmount, 1000);
    CFeeRate max_tx_fee_rate(pwallet->m_default_max_tx_fee, 1000);
    if (tx_fee_rate == CFeeRate(0)) {
        // automatic selection
    } else if (tx_fee_rate < pwallet->chain().relayMinFee()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be less than min relay tx fee (%s)", pwallet->chain().relayMinFee().ToString()));
    } else if (tx_fee_rate < pwallet->m_min_fee) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be less than wallet min fee (%s)", pwallet->m_min_fee.ToString()));
    } else if (tx_fee_rate > max_tx_fee_rate) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be more than wallet max tx fee (%s)", max_tx_fee_rate.ToString()));
    }

    pwallet->m_pay_tx_fee = tx_fee_rate;
    return true;
},
    };
}


// Only includes key documentation where the key is snake_case in all RPC methods. MixedCase keys can be added later.
static std::vector<RPCArg> FundTxDoc(bool solving_data = true)
{
    std::vector<RPCArg> args = {
        {"conf_target", RPCArg::Type::NUM, RPCArg::DefaultHint{"wallet -txconfirmtarget"}, "Confirmation target in blocks", RPCArgOptions{.also_positional = true}},
        {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"unset"}, "The fee estimate mode, must be one of (case insensitive):\n"
         "\"" + FeeModes("\"\n\"") + "\"", RPCArgOptions{.also_positional = true}},
        {
            "replaceable", RPCArg::Type::BOOL, RPCArg::DefaultHint{"wallet default"}, "Marks this transaction as BIP125-replaceable.\n"
            "Allows this transaction to be replaced by a transaction with higher fees"
        },
    };
    if (solving_data) {
        args.push_back({"solving_data", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "Keys and scripts needed for producing a final transaction with a dummy signature.\n"
        "Used for fee estimation during coin selection.",
            {
                {
                    "pubkeys", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "Public keys involved in this transaction.",
                    {
                        {"pubkey", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "A public key"},
                    }
                },
                {
                    "scripts", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "Scripts involved in this transaction.",
                    {
                        {"script", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "A script"},
                    }
                },
                {
                    "descriptors", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "Descriptors that provide solving data for this transaction.",
                    {
                        {"descriptor", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "A descriptor"},
                    }
                },
            }
        });
    }
    return args;
}

CreatedTransactionResult FundTransaction(CWallet& wallet, const CMutableTransaction& tx, const std::vector<CRecipient>& recipients, const UniValue& options, CCoinControl& coinControl, bool override_min_fee)
{
    // We want to make sure tx.vout is not used now that we are passing outputs as a vector of recipients.
    // This sets us up to remove tx completely in a future PR in favor of passing the inputs directly.
    CHECK_NONFATAL(tx.vout.empty());
    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    wallet.BlockUntilSyncedToCurrentChain();

    std::optional<unsigned int> change_position;
    bool lockUnspents = false;
    if (!options.isNull()) {
      if (options.type() == UniValue::VBOOL) {
        // backward compatibility bool only fallback
        coinControl.fAllowWatchOnly = options.get_bool();
      }
      else {
        RPCTypeCheckObj(options,
            {
                {"add_inputs", UniValueType(UniValue::VBOOL)},
                {"include_unsafe", UniValueType(UniValue::VBOOL)},
                {"add_to_wallet", UniValueType(UniValue::VBOOL)},
                {"changeAddress", UniValueType(UniValue::VSTR)},
                {"change_address", UniValueType(UniValue::VSTR)},
                {"changePosition", UniValueType(UniValue::VNUM)},
                {"change_position", UniValueType(UniValue::VNUM)},
                {"change_type", UniValueType(UniValue::VSTR)},
                {"includeWatching", UniValueType(UniValue::VBOOL)},
                {"include_watching", UniValueType(UniValue::VBOOL)},
                {"inputs", UniValueType(UniValue::VARR)},
                {"lockUnspents", UniValueType(UniValue::VBOOL)},
                {"lock_unspents", UniValueType(UniValue::VBOOL)},
                {"locktime", UniValueType(UniValue::VNUM)},
                {"fee_rate", UniValueType()}, // will be checked by AmountFromValue() in SetFeeEstimateMode()
                {"feeRate", UniValueType()}, // will be checked by AmountFromValue() below
                {"psbt", UniValueType(UniValue::VBOOL)},
                {"solving_data", UniValueType(UniValue::VOBJ)},
                {"subtractFeeFromOutputs", UniValueType(UniValue::VARR)},
                {"subtract_fee_from_outputs", UniValueType(UniValue::VARR)},
                {"replaceable", UniValueType(UniValue::VBOOL)},
                {"conf_target", UniValueType(UniValue::VNUM)},
                {"estimate_mode", UniValueType(UniValue::VSTR)},
                {"minconf", UniValueType(UniValue::VNUM)},
                {"maxconf", UniValueType(UniValue::VNUM)},
                {"input_weights", UniValueType(UniValue::VARR)},
            },
            true, true);

        if (options.exists("add_inputs")) {
            coinControl.m_allow_other_inputs = options["add_inputs"].get_bool();
        }

        if (options.exists("changeAddress") || options.exists("change_address")) {
            const std::string change_address_str = (options.exists("change_address") ? options["change_address"] : options["changeAddress"]).get_str();
            CTxDestination dest = DecodeDestination(change_address_str);

            if (!IsValidDestination(dest)) {
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Change address must be a valid bitcoin address");
            }

            coinControl.destChange = dest;
        }

        if (options.exists("changePosition") || options.exists("change_position")) {
            int pos = (options.exists("change_position") ? options["change_position"] : options["changePosition"]).getInt<int>();
            if (pos < 0 || (unsigned int)pos > recipients.size()) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "changePosition out of bounds");
            }
            change_position = (unsigned int)pos;
        }

        if (options.exists("change_type")) {
            if (options.exists("changeAddress") || options.exists("change_address")) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both change address and address type options");
            }
            if (std::optional<OutputType> parsed = ParseOutputType(options["change_type"].get_str())) {
                coinControl.m_change_type.emplace(parsed.value());
            } else {
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("Unknown change type '%s'", options["change_type"].get_str()));
            }
        }

        const UniValue include_watching_option = options.exists("include_watching") ? options["include_watching"] : options["includeWatching"];
        coinControl.fAllowWatchOnly = ParseIncludeWatchonly(include_watching_option, wallet);

        if (options.exists("lockUnspents") || options.exists("lock_unspents")) {
            lockUnspents = (options.exists("lock_unspents") ? options["lock_unspents"] : options["lockUnspents"]).get_bool();
        }

        if (options.exists("include_unsafe")) {
            coinControl.m_include_unsafe_inputs = options["include_unsafe"].get_bool();
        }

        if (options.exists("feeRate")) {
            if (options.exists("fee_rate")) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both fee_rate (" + CURRENCY_ATOM + "/vB) and feeRate (" + CURRENCY_UNIT + "/kvB)");
            }
            if (options.exists("conf_target")) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both conf_target and feeRate. Please provide either a confirmation target in blocks for automatic fee estimation, or an explicit fee rate.");
            }
            if (options.exists("estimate_mode")) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both estimate_mode and feeRate");
            }
            coinControl.m_feerate = CFeeRate(AmountFromValue(options["feeRate"]));
            coinControl.fOverrideFeeRate = true;
        }

        if (options.exists("replaceable")) {
            coinControl.m_signal_bip125_rbf = options["replaceable"].get_bool();
        }

        if (options.exists("minconf")) {
            coinControl.m_min_depth = options["minconf"].getInt<int>();

            if (coinControl.m_min_depth < 0) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative minconf");
            }
        }

        if (options.exists("maxconf")) {
            coinControl.m_max_depth = options["maxconf"].getInt<int>();

            if (coinControl.m_max_depth < coinControl.m_min_depth) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("maxconf can't be lower than minconf: %d < %d", coinControl.m_max_depth, coinControl.m_min_depth));
            }
        }
        SetFeeEstimateMode(wallet, coinControl, options["conf_target"], options["estimate_mode"], options["fee_rate"], override_min_fee);
      }
    } else {
        // if options is null and not a bool
        coinControl.fAllowWatchOnly = ParseIncludeWatchonly(NullUniValue, wallet);
    }

    if (options.exists("solving_data")) {
        const UniValue solving_data = options["solving_data"].get_obj();
        if (solving_data.exists("pubkeys")) {
            for (const UniValue& pk_univ : solving_data["pubkeys"].get_array().getValues()) {
                const std::string& pk_str = pk_univ.get_str();
                if (!IsHex(pk_str)) {
                    throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("'%s' is not hex", pk_str));
                }
                const std::vector<unsigned char> data(ParseHex(pk_str));
                const CPubKey pubkey(data.begin(), data.end());
                if (!pubkey.IsFullyValid()) {
                    throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("'%s' is not a valid public key", pk_str));
                }
                coinControl.m_external_provider.pubkeys.emplace(pubkey.GetID(), pubkey);
                // Add witness script for pubkeys
                const CScript wit_script = GetScriptForDestination(WitnessV0KeyHash(pubkey));
                coinControl.m_external_provider.scripts.emplace(CScriptID(wit_script), wit_script);
            }
        }

        if (solving_data.exists("scripts")) {
            for (const UniValue& script_univ : solving_data["scripts"].get_array().getValues()) {
                const std::string& script_str = script_univ.get_str();
                if (!IsHex(script_str)) {
                    throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("'%s' is not hex", script_str));
                }
                std::vector<unsigned char> script_data(ParseHex(script_str));
                const CScript script(script_data.begin(), script_data.end());
                coinControl.m_external_provider.scripts.emplace(CScriptID(script), script);
            }
        }

        if (solving_data.exists("descriptors")) {
            for (const UniValue& desc_univ : solving_data["descriptors"].get_array().getValues()) {
                const std::string& desc_str  = desc_univ.get_str();
                FlatSigningProvider desc_out;
                std::string error;
                std::vector<CScript> scripts_temp;
                std::unique_ptr<Descriptor> desc = Parse(desc_str, desc_out, error, true);
                if (!desc) {
                    throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Unable to parse descriptor '%s': %s", desc_str, error));
                }
                desc->Expand(0, desc_out, scripts_temp, desc_out);
                coinControl.m_external_provider.Merge(std::move(desc_out));
            }
        }
    }

    if (options.exists("input_weights")) {
        for (const UniValue& input : options["input_weights"].get_array().getValues()) {
            Txid txid = Txid::FromUint256(ParseHashO(input, "txid"));

            const UniValue& vout_v = input.find_value("vout");
            if (!vout_v.isNum()) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, missing vout key");
            }
            int vout = vout_v.getInt<int>();
            if (vout < 0) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout cannot be negative");
            }

            const UniValue& weight_v = input.find_value("weight");
            if (!weight_v.isNum()) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, missing weight key");
            }
            int64_t weight = weight_v.getInt<int64_t>();
            const int64_t min_input_weight = GetTransactionInputWeight(CTxIn());
            CHECK_NONFATAL(min_input_weight == 165);
            if (weight < min_input_weight) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, weight cannot be less than 165 (41 bytes (size of outpoint + sequence + empty scriptSig) * 4 (witness scaling factor)) + 1 (empty witness)");
            }
            if (weight > MAX_STANDARD_TX_WEIGHT) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid parameter, weight cannot be greater than the maximum standard tx weight of %d", MAX_STANDARD_TX_WEIGHT));
            }

            coinControl.SetInputWeight(COutPoint(txid, vout), weight);
        }
    }

    if (recipients.empty())
        throw JSONRPCError(RPC_INVALID_PARAMETER, "TX must have at least one output");

    auto txr = FundTransaction(wallet, tx, recipients, change_position, lockUnspents, coinControl);
    if (!txr) {
        throw JSONRPCError(RPC_WALLET_ERROR, ErrorString(txr).original);
    }
    return *txr;
}

static void SetOptionsInputWeights(const UniValue& inputs, UniValue& options)
{
    if (options.exists("input_weights")) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Input weights should be specified in inputs rather than in options.");
    }
    if (inputs.size() == 0) {
        return;
    }
    UniValue weights(UniValue::VARR);
    for (const UniValue& input : inputs.getValues()) {
        if (input.exists("weight")) {
            weights.push_back(input);
        }
    }
    options.pushKV("input_weights", weights);
}

RPCHelpMan fundrawtransaction()
{
    return RPCHelpMan{"fundrawtransaction",
                "\nIf the transaction has no inputs, they will be automatically selected to meet its out value.\n"
                "It will add at most one change output to the outputs.\n"
                "No existing outputs will be modified unless \"subtractFeeFromOutputs\" is specified.\n"
                "Note that inputs which were signed may need to be resigned after completion since in/outputs have been added.\n"
                "The inputs added will not be signed, use signrawtransactionwithkey\n"
                "or signrawtransactionwithwallet for that.\n"
                "All existing inputs must either have their previous output transaction be in the wallet\n"
                "or be in the UTXO set. Solving data must be provided for non-wallet inputs.\n"
                "Note that all inputs selected must be of standard form and P2SH scripts must be\n"
                "in the wallet using importaddress or addmultisigaddress (to calculate fees).\n"
                "You can see whether this is the case by checking the \"solvable\" field in the listunspent output.\n"
                "Only pay-to-pubkey, multisig, and P2SH versions thereof are currently supported for watch-only\n",
                {
                    {"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex string of the raw transaction"},
                    {"options", RPCArg::Type::OBJ_NAMED_PARAMS, RPCArg::Optional::OMITTED, "For backward compatibility: passing in a true instead of an object will result in {\"includeWatching\":true}",
                        Cat<std::vector<RPCArg>>(
                        {
                            {"add_inputs", RPCArg::Type::BOOL, RPCArg::Default{true}, "For a transaction with existing inputs, automatically include more if they are not enough."},
                            {"include_unsafe", RPCArg::Type::BOOL, RPCArg::Default{false}, "Include inputs that are not safe to spend (unconfirmed transactions from outside keys and unconfirmed replacement transactions).\n"
                                                          "Warning: the resulting transaction may become invalid if one of the unsafe inputs disappears.\n"
                                                          "If that happens, you will need to fund the transaction with different inputs and republish it."},
                            {"minconf", RPCArg::Type::NUM, RPCArg::Default{0}, "If add_inputs is specified, require inputs with at least this many confirmations."},
                            {"maxconf", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "If add_inputs is specified, require inputs with at most this many confirmations."},
                            {"changeAddress", RPCArg::Type::STR, RPCArg::DefaultHint{"automatic"}, "The bitcoin address to receive the change"},
                            {"changePosition", RPCArg::Type::NUM, RPCArg::DefaultHint{"random"}, "The index of the change output"},
                            {"change_type", RPCArg::Type::STR, RPCArg::DefaultHint{"set by -changetype"}, "The output type to use. Only valid if changeAddress is not specified. Options are \"legacy\", \"p2sh-segwit\", \"bech32\", and \"bech32m\"."},
                            {"includeWatching", RPCArg::Type::BOOL, RPCArg::DefaultHint{"true for watch-only wallets, otherwise false"}, "Also select inputs which are watch only.\n"
                                                          "Only solvable inputs can be used. Watch-only destinations are solvable if the public key and/or output script was imported,\n"
                                                          "e.g. with 'importpubkey' or 'importmulti' with the 'pubkeys' or 'desc' field."},
                            {"lockUnspents", RPCArg::Type::BOOL, RPCArg::Default{false}, "Lock selected unspent outputs"},
                            {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB."},
                            {"feeRate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_UNIT + "/kvB."},
                            {"subtractFeeFromOutputs", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "The integers.\n"
                                                          "The fee will be equally deducted from the amount of each specified output.\n"
                                                          "Those recipients will receive less bitcoins than you enter in their corresponding amount field.\n"
                                                          "If no outputs are specified here, the sender pays the fee.",
                                {
                                    {"vout_index", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "The zero-based output index, before a change output is added."},
                                },
                            },
                            {"input_weights", RPCArg::Type::ARR, RPCArg::Optional::OMITTED, "Inputs and their corresponding weights",
                                {
                                    {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                        {
                                            {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                                            {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output index"},
                                            {"weight", RPCArg::Type::NUM, RPCArg::Optional::NO, "The maximum weight for this input, "
                                                "including the weight of the outpoint and sequence number. "
                                                "Note that serialized signature sizes are not guaranteed to be consistent, "
                                                "so the maximum DER signatures size of 73 bytes should be used when considering ECDSA signatures."
                                                "Remember to convert serialized sizes to weight units when necessary."},
                                        },
                                    },
                                },
                             },
                        },
                        FundTxDoc()),
                        RPCArgOptions{
                            .skip_type_check = true,
                            .oneline_description = "options",
                        }},
                    {"iswitness", RPCArg::Type::BOOL, RPCArg::DefaultHint{"depends on heuristic tests"}, "Whether the transaction hex is a serialized witness transaction.\n"
                        "If iswitness is not present, heuristic tests will be used in decoding.\n"
                        "If true, only witness deserialization will be tried.\n"
                        "If false, only non-witness deserialization will be tried.\n"
                        "This boolean should reflect whether the transaction has inputs\n"
                        "(e.g. fully valid, or on-chain transactions), if known by the caller."
                    },
                },
                RPCResult{
                    RPCResult::Type::OBJ, "", "",
                    {
                        {RPCResult::Type::STR_HEX, "hex", "The resulting raw transaction (hex-encoded string)"},
                        {RPCResult::Type::STR_AMOUNT, "fee", "Fee in " + CURRENCY_UNIT + " the resulting transaction pays"},
                        {RPCResult::Type::NUM, "changepos", "The position of the added change output, or -1"},
                    }
                                },
                                RPCExamples{
                            "\nCreate a transaction with no inputs\n"
                            + HelpExampleCli("createrawtransaction", "\"[]\" \"{\\\"myaddress\\\":0.01}\"") +
                            "\nAdd sufficient unsigned inputs to meet the output value\n"
                            + HelpExampleCli("fundrawtransaction", "\"rawtransactionhex\"") +
                            "\nSign the transaction\n"
                            + HelpExampleCli("signrawtransactionwithwallet", "\"fundedtransactionhex\"") +
                            "\nSend the transaction\n"
                            + HelpExampleCli("sendrawtransaction", "\"signedtransactionhex\"")
                                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    // parse hex string from parameter
    CMutableTransaction tx;
    bool try_witness = request.params[2].isNull() ? true : request.params[2].get_bool();
    bool try_no_witness = request.params[2].isNull() ? true : !request.params[2].get_bool();
    if (!DecodeHexTx(tx, request.params[0].get_str(), try_no_witness, try_witness)) {
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
    }
    UniValue options = request.params[1];
    std::vector<std::pair<CTxDestination, CAmount>> destinations;
    for (const auto& tx_out : tx.vout) {
        CTxDestination dest;
        ExtractDestination(tx_out.scriptPubKey, dest);
        destinations.emplace_back(dest, tx_out.nValue);
    }
    std::vector<std::string> dummy(destinations.size(), "dummy");
    std::vector<CRecipient> recipients = CreateRecipients(
            destinations,
            InterpretSubtractFeeFromOutputInstructions(options["subtractFeeFromOutputs"], dummy)
    );
    CCoinControl coin_control;
    // Automatically select (additional) coins. Can be overridden by options.add_inputs.
    coin_control.m_allow_other_inputs = true;
    // Clear tx.vout since it is not meant to be used now that we are passing outputs directly.
    // This sets us up for a future PR to completely remove tx from the function signature in favor of passing inputs directly
    tx.vout.clear();
    auto txr = FundTransaction(*pwallet, tx, recipients, options, coin_control, /*override_min_fee=*/true);

    UniValue result(UniValue::VOBJ);
    result.pushKV("hex", EncodeHexTx(*txr.tx));
    result.pushKV("fee", ValueFromAmount(txr.fee));
    result.pushKV("changepos", txr.change_pos ? (int)*txr.change_pos : -1);

    return result;
},
    };
}

RPCHelpMan signrawtransactionwithwallet()
{
    return RPCHelpMan{"signrawtransactionwithwallet",
                "\nSign inputs for raw transaction (serialized, hex-encoded).\n"
                "The second optional argument (may be null) is an array of previous transaction outputs that\n"
                "this transaction depends on but may not yet be in the block chain." +
        HELP_REQUIRING_PASSPHRASE,
                {
                    {"hexstring", RPCArg::Type::STR, RPCArg::Optional::NO, "The transaction hex string"},
                    {"prevtxs", RPCArg::Type::ARR, RPCArg::Optional::OMITTED, "The previous dependent transaction outputs",
                        {
                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                {
                                    {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                                    {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},
                                    {"scriptPubKey", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "script key"},
                                    {"redeemScript", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "(required for P2SH) redeem script"},
                                    {"witnessScript", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "(required for P2WSH or P2SH-P2WSH) witness script"},
                                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::OMITTED, "(required for Segwit inputs) the amount spent"},
                                },
                            },
                        },
                    },
                    {"sighashtype", RPCArg::Type::STR, RPCArg::Default{"DEFAULT for Taproot, ALL otherwise"}, "The signature hash type. Must be one of\n"
            "       \"DEFAULT\"\n"
            "       \"ALL\"\n"
            "       \"NONE\"\n"
            "       \"SINGLE\"\n"
            "       \"ALL|ANYONECANPAY\"\n"
            "       \"NONE|ANYONECANPAY\"\n"
            "       \"SINGLE|ANYONECANPAY\""},
                },
                RPCResult{
                    RPCResult::Type::OBJ, "", "",
                    {
                        {RPCResult::Type::STR_HEX, "hex", "The hex-encoded raw transaction with signature(s)"},
                        {RPCResult::Type::BOOL, "complete", "If the transaction has a complete set of signatures"},
                        {RPCResult::Type::ARR, "errors", /*optional=*/true, "Script verification errors (if there are any)",
                        {
                            {RPCResult::Type::OBJ, "", "",
                            {
                                {RPCResult::Type::STR_HEX, "txid", "The hash of the referenced, previous transaction"},
                                {RPCResult::Type::NUM, "vout", "The index of the output to spent and used as input"},
                                {RPCResult::Type::ARR, "witness", "",
                                {
                                    {RPCResult::Type::STR_HEX, "witness", ""},
                                }},
                                {RPCResult::Type::STR_HEX, "scriptSig", "The hex-encoded signature script"},
                                {RPCResult::Type::NUM, "sequence", "Script sequence number"},
                                {RPCResult::Type::STR, "error", "Verification or signing error related to the input"},
                            }},
                        }},
                    }
                },
                RPCExamples{
                    HelpExampleCli("signrawtransactionwithwallet", "\"myhex\"")
            + HelpExampleRpc("signrawtransactionwithwallet", "\"myhex\"")
                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    const std::shared_ptr<const CWallet> pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    CMutableTransaction mtx;
    if (!DecodeHexTx(mtx, request.params[0].get_str())) {
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");
    }

    // Sign the transaction
    LOCK(pwallet->cs_wallet);
    EnsureWalletIsUnlocked(*pwallet);

    // Fetch previous transactions (inputs):
    std::map<COutPoint, Coin> coins;
    for (const CTxIn& txin : mtx.vin) {
        coins[txin.prevout]; // Create empty map entry keyed by prevout.
    }
    pwallet->chain().findCoins(coins);

    // Parse the prevtxs array
    ParsePrevouts(request.params[1], nullptr, coins);

    int nHashType = ParseSighashString(request.params[2]);

    // Script verification errors
    std::map<int, bilingual_str> input_errors;

    bool complete = pwallet->SignTransaction(mtx, coins, nHashType, input_errors);
    UniValue result(UniValue::VOBJ);
    SignTransactionResultToJSON(mtx, complete, coins, input_errors, result);
    return result;
},
    };
}

// Definition of allowed formats of specifying transaction outputs in
// `bumpfee`, `psbtbumpfee`, `send` and `walletcreatefundedpsbt` RPCs.
static std::vector<RPCArg> OutputsDoc()
{
    return
    {
        {"", RPCArg::Type::OBJ_USER_KEYS, RPCArg::Optional::OMITTED, "",
            {
                {"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "A key-value pair. The key (string) is the bitcoin address,\n"
                         "the value (float or string) is the amount in " + CURRENCY_UNIT + ""},
            },
        },
        {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
            {
                {"data", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A key-value pair. The key must be \"data\", the value is hex-encoded data"},
            },
        },
    };
}

static RPCHelpMan bumpfee_helper(std::string method_name)
{
    const bool want_psbt = method_name == "psbtbumpfee";
    const std::string incremental_fee{CFeeRate(DEFAULT_INCREMENTAL_RELAY_FEE).ToString(FeeEstimateMode::SAT_VB)};

    return RPCHelpMan{method_name,
        "\nBumps the fee of an opt-in-RBF transaction T, replacing it with a new transaction B.\n"
        + std::string(want_psbt ? "Returns a PSBT instead of creating and signing a new transaction.\n" : "") +
        "An opt-in RBF transaction with the given txid must be in the wallet.\n"
        "The command will pay the additional fee by reducing change outputs or adding inputs when necessary.\n"
        "It may add a new change output if one does not already exist.\n"
        "All inputs in the original transaction will be included in the replacement transaction.\n"
        "The command will fail if the wallet or mempool contains a transaction that spends one of T's outputs.\n"
        "By default, the new fee will be calculated automatically using the estimatesmartfee RPC.\n"
        "The user can specify a confirmation target for estimatesmartfee.\n"
        "Alternatively, the user can specify a fee rate in " + CURRENCY_ATOM + "/vB for the new transaction.\n"
        "At a minimum, the new fee rate must be high enough to pay an additional new relay fee (incrementalfee\n"
        "returned by getnetworkinfo) to enter the node's mempool.\n"
        "* WARNING: before version 0.21, fee_rate was in " + CURRENCY_UNIT + "/kvB. As of 0.21, fee_rate is in " + CURRENCY_ATOM + "/vB. *\n",
        {
            {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The txid to be bumped"},
            {"options", RPCArg::Type::OBJ_NAMED_PARAMS, RPCArg::Optional::OMITTED, "",
                {
                    {"conf_target", RPCArg::Type::NUM, RPCArg::DefaultHint{"wallet -txconfirmtarget"}, "Confirmation target in blocks\n"},
                    {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"},
                             "\nSpecify a fee rate in " + CURRENCY_ATOM + "/vB instead of relying on the built-in fee estimator.\n"
                             "Must be at least " + incremental_fee + " higher than the current transaction fee rate.\n"
                             "WARNING: before version 0.21, fee_rate was in " + CURRENCY_UNIT + "/kvB. As of 0.21, fee_rate is in " + CURRENCY_ATOM + "/vB.\n"},
                    {"replaceable", RPCArg::Type::BOOL, RPCArg::Default{true}, "Whether the new transaction should still be\n"
                             "marked bip-125 replaceable. If true, the sequence numbers in the transaction will\n"
                             "be left unchanged from the original. If false, any input sequence numbers in the\n"
                             "original transaction that were less than 0xfffffffe will be increased to 0xfffffffe\n"
                             "so the new transaction will not be explicitly bip-125 replaceable (though it may\n"
                             "still be replaceable in practice, for example if it has unconfirmed ancestors which\n"
                             "are replaceable).\n"},
                    {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"unset"}, "The fee estimate mode, must be one of (case insensitive):\n"
                             "\"" + FeeModes("\"\n\"") + "\""},
                    {"outputs", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "The outputs specified as key-value pairs.\n"
                             "Each key may only appear once, i.e. there can only be one 'data' output, and no address may be duplicated.\n"
                             "At least one output of either type must be specified.\n"
                             "Cannot be provided if 'original_change_index' is specified.",
                        OutputsDoc(),
                        RPCArgOptions{.skip_type_check = true}},
                    {"original_change_index", RPCArg::Type::NUM, RPCArg::DefaultHint{"not set, detect change automatically"}, "The 0-based index of the change output on the original transaction. "
                                                                                                                            "The indicated output will be recycled into the new change output on the bumped transaction. "
                                                                                                                            "The remainder after paying the recipients and fees will be sent to the output script of the "
                                                                                                                            "original change output. The change output’s amount can increase if bumping the transaction "
                                                                                                                            "adds new inputs, otherwise it will decrease. Cannot be used in combination with the 'outputs' option."},
                },
                RPCArgOptions{.oneline_description="options"}},
        },
        RPCResult{
            RPCResult::Type::OBJ, "", "", Cat(
                want_psbt ?
                std::vector<RPCResult>{{RPCResult::Type::STR, "psbt", "The base64-encoded unsigned PSBT of the new transaction."}} :
                std::vector<RPCResult>{{RPCResult::Type::STR_HEX, "txid", "The id of the new transaction."}},
            {
                {RPCResult::Type::STR_AMOUNT, "origfee", "The fee of the replaced transaction."},
                {RPCResult::Type::STR_AMOUNT, "fee", "The fee of the new transaction."},
                {RPCResult::Type::ARR, "errors", "Errors encountered during processing (may be empty).",
                {
                    {RPCResult::Type::STR, "", ""},
                }},
            })
        },
        RPCExamples{
    "\nBump the fee, get the new transaction\'s " + std::string(want_psbt ? "psbt" : "txid") + "\n" +
            HelpExampleCli(method_name, "<txid>")
        },
        [want_psbt](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS) && !pwallet->IsWalletFlagSet(WALLET_FLAG_EXTERNAL_SIGNER) && !want_psbt) {
        throw JSONRPCError(RPC_WALLET_ERROR, "bumpfee is not available with wallets that have private keys disabled. Use psbtbumpfee instead.");
    }

    uint256 hash(ParseHashV(request.params[0], "txid"));

    CCoinControl coin_control;
    coin_control.fAllowWatchOnly = pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
    // optional parameters
    coin_control.m_signal_bip125_rbf = true;
    std::vector<CTxOut> outputs;

    std::optional<uint32_t> original_change_index;

    if (!request.params[1].isNull()) {
        UniValue options = request.params[1];
        RPCTypeCheckObj(options,
            {
                {"confTarget", UniValueType(UniValue::VNUM)},
                {"conf_target", UniValueType(UniValue::VNUM)},
                {"fee_rate", UniValueType()}, // will be checked by AmountFromValue() in SetFeeEstimateMode()
                {"replaceable", UniValueType(UniValue::VBOOL)},
                {"estimate_mode", UniValueType(UniValue::VSTR)},
                {"outputs", UniValueType()}, // will be checked by AddOutputs()
                {"original_change_index", UniValueType(UniValue::VNUM)},
            },
            true, true);

        if (options.exists("confTarget") && options.exists("conf_target")) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "confTarget and conf_target options should not both be set. Use conf_target (confTarget is deprecated).");
        }

        auto conf_target = options.exists("confTarget") ? options["confTarget"] : options["conf_target"];

        if (options.exists("replaceable")) {
            coin_control.m_signal_bip125_rbf = options["replaceable"].get_bool();
        }
        SetFeeEstimateMode(*pwallet, coin_control, conf_target, options["estimate_mode"], options["fee_rate"], /*override_min_fee=*/false);

        // Prepare new outputs by creating a temporary tx and calling AddOutputs().
        if (!options["outputs"].isNull()) {
            if (options["outputs"].isArray() && options["outputs"].empty()) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, output argument cannot be an empty array");
            }
            CMutableTransaction tempTx;
            AddOutputs(tempTx, options["outputs"]);
            outputs = tempTx.vout;
        }

        if (options.exists("original_change_index")) {
            original_change_index = options["original_change_index"].getInt<uint32_t>();
        }
    }

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    LOCK(pwallet->cs_wallet);

    EnsureWalletIsUnlocked(*pwallet);


    std::vector<bilingual_str> errors;
    CAmount old_fee;
    CAmount new_fee;
    CMutableTransaction mtx;
    feebumper::Result res;
    // Targeting feerate bump.
    res = feebumper::CreateRateBumpTransaction(*pwallet, hash, coin_control, errors, old_fee, new_fee, mtx, /*require_mine=*/ !want_psbt, outputs, original_change_index);
    if (res != feebumper::Result::OK) {
        switch(res) {
            case feebumper::Result::INVALID_ADDRESS_OR_KEY:
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, errors[0].original);
                break;
            case feebumper::Result::INVALID_REQUEST:
                throw JSONRPCError(RPC_INVALID_REQUEST, errors[0].original);
                break;
            case feebumper::Result::INVALID_PARAMETER:
                throw JSONRPCError(RPC_INVALID_PARAMETER, errors[0].original);
                break;
            case feebumper::Result::WALLET_ERROR:
                throw JSONRPCError(RPC_WALLET_ERROR, errors[0].original);
                break;
            default:
                throw JSONRPCError(RPC_MISC_ERROR, errors[0].original);
                break;
        }
    }

    UniValue result(UniValue::VOBJ);

    // For bumpfee, return the new transaction id.
    // For psbtbumpfee, return the base64-encoded unsigned PSBT of the new transaction.
    if (!want_psbt) {
        if (!feebumper::SignTransaction(*pwallet, mtx)) {
            if (pwallet->IsWalletFlagSet(WALLET_FLAG_EXTERNAL_SIGNER)) {
                throw JSONRPCError(RPC_WALLET_ERROR, "Transaction incomplete. Try psbtbumpfee instead.");
            }
            throw JSONRPCError(RPC_WALLET_ERROR, "Can't sign transaction.");
        }

        uint256 txid;
        if (feebumper::CommitTransaction(*pwallet, hash, std::move(mtx), errors, txid) != feebumper::Result::OK) {
            throw JSONRPCError(RPC_WALLET_ERROR, errors[0].original);
        }

        result.pushKV("txid", txid.GetHex());
    } else {
        PartiallySignedTransaction psbtx(mtx);
        bool complete = false;
        const TransactionError err = pwallet->FillPSBT(psbtx, complete, SIGHASH_DEFAULT, /*sign=*/false, /*bip32derivs=*/true);
        CHECK_NONFATAL(err == TransactionError::OK);
        CHECK_NONFATAL(!complete);
        DataStream ssTx{};
        ssTx << psbtx;
        result.pushKV("psbt", EncodeBase64(ssTx.str()));
    }

    result.pushKV("origfee", ValueFromAmount(old_fee));
    result.pushKV("fee", ValueFromAmount(new_fee));
    UniValue result_errors(UniValue::VARR);
    for (const bilingual_str& error : errors) {
        result_errors.push_back(error.original);
    }
    result.pushKV("errors", result_errors);

    return result;
},
    };
}

RPCHelpMan bumpfee() { return bumpfee_helper("bumpfee"); }
RPCHelpMan psbtbumpfee() { return bumpfee_helper("psbtbumpfee"); }

RPCHelpMan send()
{
    return RPCHelpMan{"send",
        "\nEXPERIMENTAL warning: this call may be changed in future releases.\n"
        "\nSend a transaction.\n",
        {
            {"outputs", RPCArg::Type::ARR, RPCArg::Optional::NO, "The outputs specified as key-value pairs.\n"
                    "Each key may only appear once, i.e. there can only be one 'data' output, and no address may be duplicated.\n"
                    "At least one output of either type must be specified.\n"
                    "For convenience, a dictionary, which holds the key-value pairs directly, is also accepted.",
                OutputsDoc(),
                RPCArgOptions{.skip_type_check = true}},
            {"conf_target", RPCArg::Type::NUM, RPCArg::DefaultHint{"wallet -txconfirmtarget"}, "Confirmation target in blocks"},
            {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"unset"}, "The fee estimate mode, must be one of (case insensitive):\n"
             "\"" + FeeModes("\"\n\"") + "\""},
            {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB."},
            {"options", RPCArg::Type::OBJ_NAMED_PARAMS, RPCArg::Optional::OMITTED, "",
                Cat<std::vector<RPCArg>>(
                {
                    {"add_inputs", RPCArg::Type::BOOL, RPCArg::DefaultHint{"false when \"inputs\" are specified, true otherwise"},"Automatically include coins from the wallet to cover the target amount.\n"},
                    {"include_unsafe", RPCArg::Type::BOOL, RPCArg::Default{false}, "Include inputs that are not safe to spend (unconfirmed transactions from outside keys and unconfirmed replacement transactions).\n"
                                                          "Warning: the resulting transaction may become invalid if one of the unsafe inputs disappears.\n"
                                                          "If that happens, you will need to fund the transaction with different inputs and republish it."},
                    {"minconf", RPCArg::Type::NUM, RPCArg::Default{0}, "If add_inputs is specified, require inputs with at least this many confirmations."},
                    {"maxconf", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "If add_inputs is specified, require inputs with at most this many confirmations."},
                    {"add_to_wallet", RPCArg::Type::BOOL, RPCArg::Default{true}, "When false, returns a serialized transaction which will not be added to the wallet or broadcast"},
                    {"change_address", RPCArg::Type::STR, RPCArg::DefaultHint{"automatic"}, "The bitcoin address to receive the change"},
                    {"change_position", RPCArg::Type::NUM, RPCArg::DefaultHint{"random"}, "The index of the change output"},
                    {"change_type", RPCArg::Type::STR, RPCArg::DefaultHint{"set by -changetype"}, "The output type to use. Only valid if change_address is not specified. Options are \"legacy\", \"p2sh-segwit\", \"bech32\" and \"bech32m\"."},
                    {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB.", RPCArgOptions{.also_positional = true}},
                    {"include_watching", RPCArg::Type::BOOL, RPCArg::DefaultHint{"true for watch-only wallets, otherwise false"}, "Also select inputs which are watch only.\n"
                                          "Only solvable inputs can be used. Watch-only destinations are solvable if the public key and/or output script was imported,\n"
                                          "e.g. with 'importpubkey' or 'importmulti' with the 'pubkeys' or 'desc' field."},
                    {"inputs", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "Specify inputs instead of adding them automatically. A JSON array of JSON objects",
                        {
                            {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                            {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},
                            {"sequence", RPCArg::Type::NUM, RPCArg::Optional::NO, "The sequence number"},
                            {"weight", RPCArg::Type::NUM, RPCArg::DefaultHint{"Calculated from wallet and solving data"}, "The maximum weight for this input, "
                                        "including the weight of the outpoint and sequence number. "
                                        "Note that signature sizes are not guaranteed to be consistent, "
                                        "so the maximum DER signatures size of 73 bytes should be used when considering ECDSA signatures."
                                        "Remember to convert serialized sizes to weight units when necessary."},
                        },
                    },
                    {"locktime", RPCArg::Type::NUM, RPCArg::Default{0}, "Raw locktime. Non-0 value also locktime-activates inputs"},
                    {"lock_unspents", RPCArg::Type::BOOL, RPCArg::Default{false}, "Lock selected unspent outputs"},
                    {"psbt", RPCArg::Type::BOOL,  RPCArg::DefaultHint{"automatic"}, "Always return a PSBT, implies add_to_wallet=false."},
                    {"subtract_fee_from_outputs", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "Outputs to subtract the fee from, specified as integer indices.\n"
                    "The fee will be equally deducted from the amount of each specified output.\n"
                    "Those recipients will receive less bitcoins than you enter in their corresponding amount field.\n"
                    "If no outputs are specified here, the sender pays the fee.",
                        {
                            {"vout_index", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "The zero-based output index, before a change output is added."},
                        },
                    },
                },
                FundTxDoc()),
                RPCArgOptions{.oneline_description="options"}},
        },
        RPCResult{
            RPCResult::Type::OBJ, "", "",
                {
                    {RPCResult::Type::BOOL, "complete", "If the transaction has a complete set of signatures"},
                    {RPCResult::Type::STR_HEX, "txid", /*optional=*/true, "The transaction id for the send. Only 1 transaction is created regardless of the number of addresses."},
                    {RPCResult::Type::STR_HEX, "hex", /*optional=*/true, "If add_to_wallet is false, the hex-encoded raw transaction with signature(s)"},
                    {RPCResult::Type::STR, "psbt", /*optional=*/true, "If more signatures are needed, or if add_to_wallet is false, the base64-encoded (partially) signed transaction"}
                }
        },
        RPCExamples{""
        "\nSend 0.1 BTC with a confirmation target of 6 blocks in economical fee estimate mode\n"
        + HelpExampleCli("send", "'{\"" + EXAMPLE_ADDRESS[0] + "\": 0.1}' 6 economical\n") +
        "Send 0.2 BTC with a fee rate of 1.1 " + CURRENCY_ATOM + "/vB using positional arguments\n"
        + HelpExampleCli("send", "'{\"" + EXAMPLE_ADDRESS[0] + "\": 0.2}' null \"unset\" 1.1\n") +
        "Send 0.2 BTC with a fee rate of 1 " + CURRENCY_ATOM + "/vB using the options argument\n"
        + HelpExampleCli("send", "'{\"" + EXAMPLE_ADDRESS[0] + "\": 0.2}' null \"unset\" null '{\"fee_rate\": 1}'\n") +
        "Send 0.3 BTC with a fee rate of 25 " + CURRENCY_ATOM + "/vB using named arguments\n"
        + HelpExampleCli("-named send", "outputs='{\"" + EXAMPLE_ADDRESS[0] + "\": 0.3}' fee_rate=25\n") +
        "Create a transaction that should confirm the next block, with a specific input, and return result without adding to wallet or broadcasting to the network\n"
        + HelpExampleCli("send", "'{\"" + EXAMPLE_ADDRESS[0] + "\": 0.1}' 1 economical '{\"add_to_wallet\": false, \"inputs\": [{\"txid\":\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\", \"vout\":1}]}'")
        },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
        {
            std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
            if (!pwallet) return UniValue::VNULL;

            UniValue options{request.params[4].isNull() ? UniValue::VOBJ : request.params[4]};
            InterpretFeeEstimationInstructions(/*conf_target=*/request.params[1], /*estimate_mode=*/request.params[2], /*fee_rate=*/request.params[3], options);
            PreventOutdatedOptions(options);


            bool rbf{options.exists("replaceable") ? options["replaceable"].get_bool() : pwallet->m_signal_rbf};
            UniValue outputs(UniValue::VOBJ);
            outputs = NormalizeOutputs(request.params[0]);
            std::vector<CRecipient> recipients = CreateRecipients(
                    ParseOutputs(outputs),
                    InterpretSubtractFeeFromOutputInstructions(options["subtract_fee_from_outputs"], outputs.getKeys())
            );
            CMutableTransaction rawTx = ConstructTransaction(options["inputs"], request.params[0], options["locktime"], rbf);
            CCoinControl coin_control;
            // Automatically select coins, unless at least one is manually selected. Can
            // be overridden by options.add_inputs.
            coin_control.m_allow_other_inputs = rawTx.vin.size() == 0;
            SetOptionsInputWeights(options["inputs"], options);
            // Clear tx.vout since it is not meant to be used now that we are passing outputs directly.
            // This sets us up for a future PR to completely remove tx from the function signature in favor of passing inputs directly
            rawTx.vout.clear();
            auto txr = FundTransaction(*pwallet, rawTx, recipients, options, coin_control, /*override_min_fee=*/false);

            return FinishTransaction(pwallet, options, CMutableTransaction(*txr.tx));
        }
    };
}

RPCHelpMan sendall()
{
    return RPCHelpMan{"sendall",
        "EXPERIMENTAL warning: this call may be changed in future releases.\n"
        "\nSpend the value of all (or specific) confirmed UTXOs in the wallet to one or more recipients.\n"
        "Unconfirmed inbound UTXOs and locked UTXOs will not be spent. Sendall will respect the avoid_reuse wallet flag.\n"
        "If your wallet contains many small inputs, either because it received tiny payments or as a result of accumulating change, consider using `send_max` to exclude inputs that are worth less than the fees needed to spend them.\n",
        {
            {"recipients", RPCArg::Type::ARR, RPCArg::Optional::NO, "The sendall destinations. Each address may only appear once.\n"
                "Optionally some recipients can be specified with an amount to perform payments, but at least one address must appear without a specified amount.\n",
                {
                    {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "A bitcoin address which receives an equal share of the unspecified amount."},
                    {"", RPCArg::Type::OBJ_USER_KEYS, RPCArg::Optional::OMITTED, "",
                        {
                            {"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "A key-value pair. The key (string) is the bitcoin address, the value (float or string) is the amount in " + CURRENCY_UNIT + ""},
                        },
                    },
                },
            },
            {"conf_target", RPCArg::Type::NUM, RPCArg::DefaultHint{"wallet -txconfirmtarget"}, "Confirmation target in blocks"},
            {"estimate_mode", RPCArg::Type::STR, RPCArg::Default{"unset"}, "The fee estimate mode, must be one of (case insensitive):\n"
             "\"" + FeeModes("\"\n\"") + "\""},
            {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB."},
            {
                "options", RPCArg::Type::OBJ_NAMED_PARAMS, RPCArg::Optional::OMITTED, "",
                Cat<std::vector<RPCArg>>(
                    {
                        {"add_to_wallet", RPCArg::Type::BOOL, RPCArg::Default{true}, "When false, returns the serialized transaction without broadcasting or adding it to the wallet"},
                        {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB.", RPCArgOptions{.also_positional = true}},
                        {"include_watching", RPCArg::Type::BOOL, RPCArg::DefaultHint{"true for watch-only wallets, otherwise false"}, "Also select inputs which are watch-only.\n"
                                              "Only solvable inputs can be used. Watch-only destinations are solvable if the public key and/or output script was imported,\n"
                                              "e.g. with 'importpubkey' or 'importmulti' with the 'pubkeys' or 'desc' field."},
                        {"inputs", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "Use exactly the specified inputs to build the transaction. Specifying inputs is incompatible with the send_max, minconf, and maxconf options.",
                            {
                                {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                    {
                                        {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                                        {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},
                                        {"sequence", RPCArg::Type::NUM, RPCArg::DefaultHint{"depends on the value of the 'replaceable' and 'locktime' arguments"}, "The sequence number"},
                                    },
                                },
                            },
                        },
                        {"locktime", RPCArg::Type::NUM, RPCArg::Default{0}, "Raw locktime. Non-0 value also locktime-activates inputs"},
                        {"lock_unspents", RPCArg::Type::BOOL, RPCArg::Default{false}, "Lock selected unspent outputs"},
                        {"psbt", RPCArg::Type::BOOL,  RPCArg::DefaultHint{"automatic"}, "Always return a PSBT, implies add_to_wallet=false."},
                        {"send_max", RPCArg::Type::BOOL, RPCArg::Default{false}, "When true, only use UTXOs that can pay for their own fees to maximize the output amount. When 'false' (default), no UTXO is left behind. send_max is incompatible with providing specific inputs."},
                        {"minconf", RPCArg::Type::NUM, RPCArg::Default{0}, "Require inputs with at least this many confirmations."},
                        {"maxconf", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "Require inputs with at most this many confirmations."},
                    },
                    FundTxDoc()
                ),
                RPCArgOptions{.oneline_description="options"}
            },
        },
        RPCResult{
            RPCResult::Type::OBJ, "", "",
                {
                    {RPCResult::Type::BOOL, "complete", "If the transaction has a complete set of signatures"},
                    {RPCResult::Type::STR_HEX, "txid", /*optional=*/true, "The transaction id for the send. Only 1 transaction is created regardless of the number of addresses."},
                    {RPCResult::Type::STR_HEX, "hex", /*optional=*/true, "If add_to_wallet is false, the hex-encoded raw transaction with signature(s)"},
                    {RPCResult::Type::STR, "psbt", /*optional=*/true, "If more signatures are needed, or if add_to_wallet is false, the base64-encoded (partially) signed transaction"}
                }
        },
        RPCExamples{""
        "\nSpend all UTXOs from the wallet with a fee rate of 1 " + CURRENCY_ATOM + "/vB using named arguments\n"
        + HelpExampleCli("-named sendall", "recipients='[\"" + EXAMPLE_ADDRESS[0] + "\"]' fee_rate=1\n") +
        "Spend all UTXOs with a fee rate of 1.1 " + CURRENCY_ATOM + "/vB using positional arguments\n"
        + HelpExampleCli("sendall", "'[\"" + EXAMPLE_ADDRESS[0] + "\"]' null \"unset\" 1.1\n") +
        "Spend all UTXOs split into equal amounts to two addresses with a fee rate of 1.5 " + CURRENCY_ATOM + "/vB using the options argument\n"
        + HelpExampleCli("sendall", "'[\"" + EXAMPLE_ADDRESS[0] + "\", \"" + EXAMPLE_ADDRESS[1] + "\"]' null \"unset\" null '{\"fee_rate\": 1.5}'\n") +
        "Leave dust UTXOs in wallet, spend only UTXOs with positive effective value with a fee rate of 10 " + CURRENCY_ATOM + "/vB using the options argument\n"
        + HelpExampleCli("sendall", "'[\"" + EXAMPLE_ADDRESS[0] + "\"]' null \"unset\" null '{\"fee_rate\": 10, \"send_max\": true}'\n") +
        "Spend all UTXOs with a fee rate of 1.3 " + CURRENCY_ATOM + "/vB using named arguments and sending a 0.25 " + CURRENCY_UNIT + " to another recipient\n"
        + HelpExampleCli("-named sendall", "recipients='[{\"" + EXAMPLE_ADDRESS[1] + "\": 0.25}, \""+ EXAMPLE_ADDRESS[0] + "\"]' fee_rate=1.3\n")
        },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
        {
            std::shared_ptr<CWallet> const pwallet{GetWalletForJSONRPCRequest(request)};
            if (!pwallet) return UniValue::VNULL;
            // Make sure the results are valid at least up to the most recent block
            // the user could have gotten from another RPC command prior to now
            pwallet->BlockUntilSyncedToCurrentChain();

            UniValue options{request.params[4].isNull() ? UniValue::VOBJ : request.params[4]};
            InterpretFeeEstimationInstructions(/*conf_target=*/request.params[1], /*estimate_mode=*/request.params[2], /*fee_rate=*/request.params[3], options);
            PreventOutdatedOptions(options);


            std::set<std::string> addresses_without_amount;
            UniValue recipient_key_value_pairs(UniValue::VARR);
            const UniValue& recipients{request.params[0]};
            for (unsigned int i = 0; i < recipients.size(); ++i) {
                const UniValue& recipient{recipients[i]};
                if (recipient.isStr()) {
                    UniValue rkvp(UniValue::VOBJ);
                    rkvp.pushKV(recipient.get_str(), 0);
                    recipient_key_value_pairs.push_back(rkvp);
                    addresses_without_amount.insert(recipient.get_str());
                } else {
                    recipient_key_value_pairs.push_back(recipient);
                }
            }

            if (addresses_without_amount.size() == 0) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Must provide at least one address without a specified amount");
            }

            CCoinControl coin_control;

            SetFeeEstimateMode(*pwallet, coin_control, options["conf_target"], options["estimate_mode"], options["fee_rate"], /*override_min_fee=*/false);

            coin_control.fAllowWatchOnly = ParseIncludeWatchonly(options["include_watching"], *pwallet);

            if (options.exists("minconf")) {
                if (options["minconf"].getInt<int>() < 0)
                {
                    throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid minconf (minconf cannot be negative): %s", options["minconf"].getInt<int>()));
                }

                coin_control.m_min_depth = options["minconf"].getInt<int>();
            }

            if (options.exists("maxconf")) {
                coin_control.m_max_depth = options["maxconf"].getInt<int>();

                if (coin_control.m_max_depth < coin_control.m_min_depth) {
                    throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("maxconf can't be lower than minconf: %d < %d", coin_control.m_max_depth, coin_control.m_min_depth));
                }
            }

            const bool rbf{options.exists("replaceable") ? options["replaceable"].get_bool() : pwallet->m_signal_rbf};

            FeeCalculation fee_calc_out;
            CFeeRate fee_rate{GetMinimumFeeRate(*pwallet, coin_control, &fee_calc_out)};
            // Do not, ever, assume that it's fine to change the fee rate if the user has explicitly
            // provided one
            if (coin_control.m_feerate && fee_rate > *coin_control.m_feerate) {
               throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Fee rate (%s) is lower than the minimum fee rate setting (%s)", coin_control.m_feerate->ToString(FeeEstimateMode::SAT_VB), fee_rate.ToString(FeeEstimateMode::SAT_VB)));
            }
            if (fee_calc_out.reason == FeeReason::FALLBACK && !pwallet->m_allow_fallback_fee) {
                // eventually allow a fallback fee
                throw JSONRPCError(RPC_WALLET_ERROR, "Fee estimation failed. Fallbackfee is disabled. Wait a few blocks or enable -fallbackfee.");
            }

            CMutableTransaction rawTx{ConstructTransaction(options["inputs"], recipient_key_value_pairs, options["locktime"], rbf)};
            LOCK(pwallet->cs_wallet);

            CAmount total_input_value(0);
            bool send_max{options.exists("send_max") ? options["send_max"].get_bool() : false};
            if (options.exists("inputs") && options.exists("send_max")) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot combine send_max with specific inputs.");
            } else if (options.exists("inputs") && (options.exists("minconf") || options.exists("maxconf"))) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot combine minconf or maxconf with specific inputs.");
            } else if (options.exists("inputs")) {
                for (const CTxIn& input : rawTx.vin) {
                    if (pwallet->IsSpent(input.prevout)) {
                        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Input not available. UTXO (%s:%d) was already spent.", input.prevout.hash.ToString(), input.prevout.n));
                    }
                    const CWalletTx* tx{pwallet->GetWalletTx(input.prevout.hash)};
                    if (!tx || input.prevout.n >= tx->tx->vout.size() || !(pwallet->IsMine(tx->tx->vout[input.prevout.n]) & (coin_control.fAllowWatchOnly ? ISMINE_ALL : ISMINE_SPENDABLE))) {
                        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Input not found. UTXO (%s:%d) is not part of wallet.", input.prevout.hash.ToString(), input.prevout.n));
                    }
                    total_input_value += tx->tx->vout[input.prevout.n].nValue;
                }
            } else {
                CoinFilterParams coins_params;
                coins_params.min_amount = 0;
                for (const COutput& output : AvailableCoins(*pwallet, &coin_control, fee_rate, coins_params).All()) {
                    CHECK_NONFATAL(output.input_bytes > 0);
                    if (send_max && fee_rate.GetFee(output.input_bytes) > output.txout.nValue) {
                        continue;
                    }
                    CTxIn input(output.outpoint.hash, output.outpoint.n, CScript(), rbf ? MAX_BIP125_RBF_SEQUENCE : CTxIn::SEQUENCE_FINAL);
                    rawTx.vin.push_back(input);
                    total_input_value += output.txout.nValue;
                }
            }

            // estimate final size of tx
            const TxSize tx_size{CalculateMaximumSignedTxSize(CTransaction(rawTx), pwallet.get())};
            const CAmount fee_from_size{fee_rate.GetFee(tx_size.vsize)};
            const CAmount effective_value{total_input_value - fee_from_size};

            if (fee_from_size > pwallet->m_default_max_tx_fee) {
                throw JSONRPCError(RPC_WALLET_ERROR, TransactionErrorString(TransactionError::MAX_FEE_EXCEEDED).original);
            }

            if (effective_value <= 0) {
                if (send_max) {
                    throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Total value of UTXO pool too low to pay for transaction, try using lower feerate.");
                } else {
                    throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Total value of UTXO pool too low to pay for transaction. Try using lower feerate or excluding uneconomic UTXOs with 'send_max' option.");
                }
            }

            // If this transaction is too large, e.g. because the wallet has many UTXOs, it will be rejected by the node's mempool.
            if (tx_size.weight > MAX_STANDARD_TX_WEIGHT) {
                throw JSONRPCError(RPC_WALLET_ERROR, "Transaction too large.");
            }

            CAmount output_amounts_claimed{0};
            for (const CTxOut& out : rawTx.vout) {
                output_amounts_claimed += out.nValue;
            }

            if (output_amounts_claimed > total_input_value) {
                throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Assigned more value to outputs than available funds.");
            }

            const CAmount remainder{effective_value - output_amounts_claimed};
            if (remainder < 0) {
                throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Insufficient funds for fees after creating specified outputs.");
            }

            const CAmount per_output_without_amount{remainder / (long)addresses_without_amount.size()};

            bool gave_remaining_to_first{false};
            for (CTxOut& out : rawTx.vout) {
                CTxDestination dest;
                ExtractDestination(out.scriptPubKey, dest);
                std::string addr{EncodeDestination(dest)};
                if (addresses_without_amount.count(addr) > 0) {
                    out.nValue = per_output_without_amount;
                    if (!gave_remaining_to_first) {
                        out.nValue += remainder % addresses_without_amount.size();
                        gave_remaining_to_first = true;
                    }
                    if (IsDust(out, pwallet->chain().relayDustFee())) {
                        // Dynamically generated output amount is dust
                        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Dynamically assigned remainder results in dust output.");
                    }
                } else {
                    if (IsDust(out, pwallet->chain().relayDustFee())) {
                        // Specified output amount is dust
                        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Specified output amount to %s is below dust threshold.", addr));
                    }
                }
            }

            const bool lock_unspents{options.exists("lock_unspents") ? options["lock_unspents"].get_bool() : false};
            if (lock_unspents) {
                for (const CTxIn& txin : rawTx.vin) {
                    pwallet->LockCoin(txin.prevout);
                }
            }

            return FinishTransaction(pwallet, options, rawTx);
        }
    };
}

RPCHelpMan walletprocesspsbt()
{
    return RPCHelpMan{"walletprocesspsbt",
                "\nUpdate a PSBT with input information from our wallet and then sign inputs\n"
                "that we can sign for." +
        HELP_REQUIRING_PASSPHRASE,
                {
                    {"psbt", RPCArg::Type::STR, RPCArg::Optional::NO, "The transaction base64 string"},
                    {"sign", RPCArg::Type::BOOL, RPCArg::Default{true}, "Also sign the transaction when updating (requires wallet to be unlocked)"},
                    {"sighashtype", RPCArg::Type::STR, RPCArg::Default{"DEFAULT for Taproot, ALL otherwise"}, "The signature hash type to sign with if not specified by the PSBT. Must be one of\n"
            "       \"DEFAULT\"\n"
            "       \"ALL\"\n"
            "       \"NONE\"\n"
            "       \"SINGLE\"\n"
            "       \"ALL|ANYONECANPAY\"\n"
            "       \"NONE|ANYONECANPAY\"\n"
            "       \"SINGLE|ANYONECANPAY\""},
                    {"bip32derivs", RPCArg::Type::BOOL, RPCArg::Default{true}, "Include BIP 32 derivation paths for public keys if we know them"},
                    {"finalize", RPCArg::Type::BOOL, RPCArg::Default{true}, "Also finalize inputs if possible"},
                },
                RPCResult{
                    RPCResult::Type::OBJ, "", "",
                    {
                        {RPCResult::Type::STR, "psbt", "The base64-encoded partially signed transaction"},
                        {RPCResult::Type::BOOL, "complete", "If the transaction has a complete set of signatures"},
                        {RPCResult::Type::STR_HEX, "hex", /*optional=*/true, "The hex-encoded network transaction if complete"},
                    }
                },
                RPCExamples{
                    HelpExampleCli("walletprocesspsbt", "\"psbt\"")
                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    const std::shared_ptr<const CWallet> pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    const CWallet& wallet{*pwallet};
    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    wallet.BlockUntilSyncedToCurrentChain();

    // Unserialize the transaction
    PartiallySignedTransaction psbtx;
    std::string error;
    if (!DecodeBase64PSBT(psbtx, request.params[0].get_str(), error)) {
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed %s", error));
    }

    // Get the sighash type
    int nHashType = ParseSighashString(request.params[2]);

    // Fill transaction with our data and also sign
    bool sign = request.params[1].isNull() ? true : request.params[1].get_bool();
    bool bip32derivs = request.params[3].isNull() ? true : request.params[3].get_bool();
    bool finalize = request.params[4].isNull() ? true : request.params[4].get_bool();
    bool complete = true;

    if (sign) EnsureWalletIsUnlocked(*pwallet);

    const TransactionError err{wallet.FillPSBT(psbtx, complete, nHashType, sign, bip32derivs, nullptr, finalize)};
    if (err != TransactionError::OK) {
        throw JSONRPCTransactionError(err);
    }

    UniValue result(UniValue::VOBJ);
    DataStream ssTx{};
    ssTx << psbtx;
    result.pushKV("psbt", EncodeBase64(ssTx.str()));
    result.pushKV("complete", complete);
    if (complete) {
        CMutableTransaction mtx;
        // Returns true if complete, which we already think it is.
        CHECK_NONFATAL(FinalizeAndExtractPSBT(psbtx, mtx));
        DataStream ssTx_final;
        ssTx_final << TX_WITH_WITNESS(mtx);
        result.pushKV("hex", HexStr(ssTx_final));
    }

    return result;
},
    };
}

RPCHelpMan walletcreatefundedpsbt()
{
    return RPCHelpMan{"walletcreatefundedpsbt",
                "\nCreates and funds a transaction in the Partially Signed Transaction format.\n"
                "Implements the Creator and Updater roles.\n"
                "All existing inputs must either have their previous output transaction be in the wallet\n"
                "or be in the UTXO set. Solving data must be provided for non-wallet inputs.\n",
                {
                    {"inputs", RPCArg::Type::ARR, RPCArg::Optional::OMITTED, "Leave empty to add inputs automatically. See add_inputs option.",
                        {
                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                {
                                    {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                                    {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},
                                    {"sequence", RPCArg::Type::NUM, RPCArg::DefaultHint{"depends on the value of the 'locktime' and 'options.replaceable' arguments"}, "The sequence number"},
                                    {"weight", RPCArg::Type::NUM, RPCArg::DefaultHint{"Calculated from wallet and solving data"}, "The maximum weight for this input, "
                                        "including the weight of the outpoint and sequence number. "
                                        "Note that signature sizes are not guaranteed to be consistent, "
                                        "so the maximum DER signatures size of 73 bytes should be used when considering ECDSA signatures."
                                        "Remember to convert serialized sizes to weight units when necessary."},
                                },
                            },
                        },
                        },
                    {"outputs", RPCArg::Type::ARR, RPCArg::Optional::NO, "The outputs specified as key-value pairs.\n"
                            "Each key may only appear once, i.e. there can only be one 'data' output, and no address may be duplicated.\n"
                            "At least one output of either type must be specified.\n"
                            "For compatibility reasons, a dictionary, which holds the key-value pairs directly, is also\n"
                            "accepted as second parameter.",
                        OutputsDoc(),
                        RPCArgOptions{.skip_type_check = true}},
                    {"locktime", RPCArg::Type::NUM, RPCArg::Default{0}, "Raw locktime. Non-0 value also locktime-activates inputs"},
                    {"options", RPCArg::Type::OBJ_NAMED_PARAMS, RPCArg::Optional::OMITTED, "",
                        Cat<std::vector<RPCArg>>(
                        {
                            {"add_inputs", RPCArg::Type::BOOL, RPCArg::DefaultHint{"false when \"inputs\" are specified, true otherwise"}, "Automatically include coins from the wallet to cover the target amount.\n"},
                            {"include_unsafe", RPCArg::Type::BOOL, RPCArg::Default{false}, "Include inputs that are not safe to spend (unconfirmed transactions from outside keys and unconfirmed replacement transactions).\n"
                                                          "Warning: the resulting transaction may become invalid if one of the unsafe inputs disappears.\n"
                                                          "If that happens, you will need to fund the transaction with different inputs and republish it."},
                            {"minconf", RPCArg::Type::NUM, RPCArg::Default{0}, "If add_inputs is specified, require inputs with at least this many confirmations."},
                            {"maxconf", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "If add_inputs is specified, require inputs with at most this many confirmations."},
                            {"changeAddress", RPCArg::Type::STR, RPCArg::DefaultHint{"automatic"}, "The bitcoin address to receive the change"},
                            {"changePosition", RPCArg::Type::NUM, RPCArg::DefaultHint{"random"}, "The index of the change output"},
                            {"change_type", RPCArg::Type::STR, RPCArg::DefaultHint{"set by -changetype"}, "The output type to use. Only valid if changeAddress is not specified. Options are \"legacy\", \"p2sh-segwit\", \"bech32\", and \"bech32m\"."},
                            {"includeWatching", RPCArg::Type::BOOL, RPCArg::DefaultHint{"true for watch-only wallets, otherwise false"}, "Also select inputs which are watch only"},
                            {"lockUnspents", RPCArg::Type::BOOL, RPCArg::Default{false}, "Lock selected unspent outputs"},
                            {"fee_rate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_ATOM + "/vB."},
                            {"feeRate", RPCArg::Type::AMOUNT, RPCArg::DefaultHint{"not set, fall back to wallet fee estimation"}, "Specify a fee rate in " + CURRENCY_UNIT + "/kvB."},
                            {"subtractFeeFromOutputs", RPCArg::Type::ARR, RPCArg::Default{UniValue::VARR}, "The outputs to subtract the fee from.\n"
                                                          "The fee will be equally deducted from the amount of each specified output.\n"
                                                          "Those recipients will receive less bitcoins than you enter in their corresponding amount field.\n"
                                                          "If no outputs are specified here, the sender pays the fee.",
                                {
                                    {"vout_index", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "The zero-based output index, before a change output is added."},
                                },
                            },
                        },
                        FundTxDoc()),
                        RPCArgOptions{.oneline_description="options"}},
                    {"bip32derivs", RPCArg::Type::BOOL, RPCArg::Default{true}, "Include BIP 32 derivation paths for public keys if we know them"},
                },
                RPCResult{
                    RPCResult::Type::OBJ, "", "",
                    {
                        {RPCResult::Type::STR, "psbt", "The resulting raw transaction (base64-encoded string)"},
                        {RPCResult::Type::STR_AMOUNT, "fee", "Fee in " + CURRENCY_UNIT + " the resulting transaction pays"},
                        {RPCResult::Type::NUM, "changepos", "The position of the added change output, or -1"},
                    }
                                },
                                RPCExamples{
                            "\nCreate a transaction with no inputs\n"
                            + HelpExampleCli("walletcreatefundedpsbt", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"[{\\\"data\\\":\\\"00010203\\\"}]\"")
                                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;

    CWallet& wallet{*pwallet};
    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    wallet.BlockUntilSyncedToCurrentChain();

    UniValue options{request.params[3].isNull() ? UniValue::VOBJ : request.params[3]};

    const UniValue &replaceable_arg = options["replaceable"];
    const bool rbf{replaceable_arg.isNull() ? wallet.m_signal_rbf : replaceable_arg.get_bool()};
    CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], rbf);
    UniValue outputs(UniValue::VOBJ);
    outputs = NormalizeOutputs(request.params[1]);
    std::vector<CRecipient> recipients = CreateRecipients(
            ParseOutputs(outputs),
            InterpretSubtractFeeFromOutputInstructions(options["subtractFeeFromOutputs"], outputs.getKeys())
    );
    CCoinControl coin_control;
    // Automatically select coins, unless at least one is manually selected. Can
    // be overridden by options.add_inputs.
    coin_control.m_allow_other_inputs = rawTx.vin.size() == 0;
    SetOptionsInputWeights(request.params[0], options);
    // Clear tx.vout since it is not meant to be used now that we are passing outputs directly.
    // This sets us up for a future PR to completely remove tx from the function signature in favor of passing inputs directly
    rawTx.vout.clear();
    auto txr = FundTransaction(wallet, rawTx, recipients, options, coin_control, /*override_min_fee=*/true);

    // Make a blank psbt
    PartiallySignedTransaction psbtx(CMutableTransaction(*txr.tx));

    // Fill transaction with out data but don't sign
    bool bip32derivs = request.params[4].isNull() ? true : request.params[4].get_bool();
    bool complete = true;
    const TransactionError err{wallet.FillPSBT(psbtx, complete, 1, /*sign=*/false, /*bip32derivs=*/bip32derivs)};
    if (err != TransactionError::OK) {
        throw JSONRPCTransactionError(err);
    }

    // Serialize the PSBT
    DataStream ssTx{};
    ssTx << psbtx;

    UniValue result(UniValue::VOBJ);
    result.pushKV("psbt", EncodeBase64(ssTx.str()));
    result.pushKV("fee", ValueFromAmount(txr.fee));
    result.pushKV("changepos", txr.change_pos ? (int)*txr.change_pos : -1);
    return result;
},
    };
}
} // namespace wallet