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
|
import { AmountJson, Amounts } from "../amounts.js";
import { HttpRequestLibrary } from "../http-common.js";
import { HttpStatusCode } from "../http-status-codes.js";
import { createPlatformHttpLib } from "../http.js";
import { FailCasesByMethod, ResultByMethod, opEmptySuccess, opKnownFailure, opSuccess, opUnknownFailure } from "../operation.js";
import { TalerErrorCode } from "../taler-error-codes.js";
import { codecForTalerErrorDetail } from "../wallet-types.js";
import {
AccessToken,
TalerBankConversionApi,
UserAndToken,
codecForCashinConversionResponse,
codecForCashoutConversionResponse,
codecForConversionBankConfig
} from "./types.js";
import { makeBearerTokenAuthHeader } from "./utils.js";
export type TalerBankConversionResultByMethod<prop extends keyof TalerBankConversionHttpClient> = ResultByMethod<TalerBankConversionHttpClient, prop>
export type TalerBankConversionErrorsByMethod<prop extends keyof TalerBankConversionHttpClient> = FailCasesByMethod<TalerBankConversionHttpClient, prop>
/**
* The API is used by the wallets.
*/
export class TalerBankConversionHttpClient {
httpLib: HttpRequestLibrary;
constructor(
readonly baseUrl: string,
httpClient?: HttpRequestLibrary,
) {
this.httpLib = httpClient ?? createPlatformHttpLib();
}
/**
* https://docs.taler.net/core/api-bank-conversion-info.html#get--config
*
*/
async getConfig() {
const url = new URL(`config`, this.baseUrl);
const resp = await this.httpLib.fetch(url.href, {
method: "GET"
});
switch (resp.status) {
case HttpStatusCode.Ok: return opSuccess(resp, codecForConversionBankConfig())
default: return opUnknownFailure(resp, await resp.text())
}
}
/**
* https://docs.taler.net/core/api-bank-conversion-info.html#get--cashin-rate
*
*/
async getCashinRate(conversion: { debit?: AmountJson, credit?: AmountJson }) {
const url = new URL(`cashin-rate`, this.baseUrl);
if (conversion.debit) {
url.searchParams.set("amount_debit", Amounts.stringify(conversion.debit))
}
if (conversion.credit) {
url.searchParams.set("amount_credit", Amounts.stringify(conversion.credit))
}
const resp = await this.httpLib.fetch(url.href, {
method: "GET",
});
switch (resp.status) {
case HttpStatusCode.Ok: return opSuccess(resp, codecForCashinConversionResponse())
case HttpStatusCode.BadRequest: {
const body = await resp.json()
const details = codecForTalerErrorDetail().decode(body)
switch (details.code) {
case TalerErrorCode.GENERIC_PARAMETER_MISSING: return opKnownFailure("missing-params", resp);
case TalerErrorCode.GENERIC_PARAMETER_MALFORMED: return opKnownFailure("wrong-calculation", resp);
case TalerErrorCode.GENERIC_CURRENCY_MISMATCH: return opKnownFailure("wrong-currency", resp);
default: return opUnknownFailure(resp, body)
}
}
case HttpStatusCode.Conflict: return opKnownFailure("amount-too-small", resp);
case HttpStatusCode.NotImplemented: return opKnownFailure("conversion-not-supported", resp);
default: return opUnknownFailure(resp, await resp.text())
}
}
/**
* https://docs.taler.net/core/api-bank-conversion-info.html#get--cashout-rate
*
*/
async getCashoutRate(conversion: { debit?: AmountJson, credit?: AmountJson }) {
const url = new URL(`cashout-rate`, this.baseUrl);
if (conversion.debit) {
url.searchParams.set("amount_debit", Amounts.stringify(conversion.debit))
}
if (conversion.credit) {
url.searchParams.set("amount_credit", Amounts.stringify(conversion.credit))
}
const resp = await this.httpLib.fetch(url.href, {
method: "GET",
});
switch (resp.status) {
case HttpStatusCode.Ok: return opSuccess(resp, codecForCashoutConversionResponse())
case HttpStatusCode.BadRequest: {
const body = await resp.json()
const details = codecForTalerErrorDetail().decode(body)
switch (details.code) {
case TalerErrorCode.GENERIC_PARAMETER_MISSING: return opKnownFailure("missing-params", resp);
case TalerErrorCode.GENERIC_PARAMETER_MALFORMED: return opKnownFailure("wrong-calculation", resp);
case TalerErrorCode.GENERIC_CURRENCY_MISMATCH: return opKnownFailure("wrong-currency", resp);
default: return opUnknownFailure(resp, body)
}
}
case HttpStatusCode.Conflict: return opKnownFailure("amount-too-small", resp);
case HttpStatusCode.NotImplemented: return opKnownFailure("conversion-not-supported", resp);
default: return opUnknownFailure(resp, await resp.text())
}
}
/**
* https://docs.taler.net/core/api-bank-conversion-info.html#post--conversion-rate
*
*/
async updateConversionRate(auth: AccessToken, body: TalerBankConversionApi.ConversionRate) {
const url = new URL(`conversion-rate`, this.baseUrl);
const resp = await this.httpLib.fetch(url.href, {
method: "POST",
headers: {
Authorization: makeBearerTokenAuthHeader(auth)
},
body
});
switch (resp.status) {
case HttpStatusCode.NoContent: return opEmptySuccess()
case HttpStatusCode.Unauthorized: return opKnownFailure("unauthorized", resp);
case HttpStatusCode.NotImplemented: return opKnownFailure("conversion-not-supported", resp);
default: return opUnknownFailure(resp, await resp.text())
}
}
}
|
