3 files changed, 22 insertions, 0 deletions
diff --git a/packages/taler-util/src/taler-types.ts b/packages/taler-util/src/taler-types.ts
index 66f98ea9a..ac42ca278 100644
--- a/packages/taler-util/src/taler-types.ts
+++ b/packages/taler-util/src/taler-types.ts
@@ -723,6 +723,8 @@ export class ExchangeKeysJson {
 
   currency: string;
 
+  currency_specification?: CurrencySpecification;
+
   /**
    * The exchange's master public key.
    */
@@ -1504,6 +1506,7 @@ export const codecForExchangeKeysJson = (): Codec<ExchangeKeysJson> =>
   buildCodecForObject<ExchangeKeysJson>()
     .property("base_url", codecForString())
     .property("currency", codecForString())
+    .property("currency_specification", codecOptional(codecForCurrencySpecificiation()))
     .property("master_public_key", codecForString())
     .property("auditors", codecForList(codecForAuditor()))
     .property("list_issue_date", codecForTimestamp)
diff --git a/packages/taler-util/src/taleruri.ts b/packages/taler-util/src/taleruri.ts
index b22dc3c59..d3186d2f5 100644
--- a/packages/taler-util/src/taleruri.ts
+++ b/packages/taler-util/src/taleruri.ts
@@ -29,6 +29,7 @@ import { opFixedSuccess, opKnownTalerFailure } from "./operation.js";
 import { TalerErrorCode } from "./taler-error-codes.js";
 import { AmountString } from "./taler-types.js";
 import { URL, URLSearchParams } from "./url.js";
+
 /**
  * A parsed taler URI.
  */
diff --git a/packages/taler-util/src/wallet-types.ts b/packages/taler-util/src/wallet-types.ts
index 2c92d9295..42c0148e7 100644
--- a/packages/taler-util/src/wallet-types.ts
+++ b/packages/taler-util/src/wallet-types.ts
@@ -558,11 +558,13 @@ export enum ScopeType {
 }
 
 export type ScopeInfoGlobal = { type: ScopeType.Global; currency: string };
+
 export type ScopeInfoExchange = {
   type: ScopeType.Exchange;
   currency: string;
   url: string;
 };
+
 export type ScopeInfoAuditor = {
   type: ScopeType.Auditor;
   currency: string;
@@ -571,6 +573,22 @@ export type ScopeInfoAuditor = {
 
 export type ScopeInfo = ScopeInfoGlobal | ScopeInfoExchange | ScopeInfoAuditor;
 
+/**
+ * Encode scope info as a string.
+ *
+ * Format must be stable as it's used in the database.
+ */
+export function stringifyScopeInfo(si: ScopeInfo): string {
+  switch (si.type) {
+    case ScopeType.Global:
+      return `taler-si:global/${si.currency}}`;
+    case ScopeType.Auditor:
+      return `taler-si:auditor/${si.currency}/${encodeURIComponent(si.url)}`;
+    case ScopeType.Exchange:
+      return `taler-si:exchange/${si.currency}/${encodeURIComponent(si.url)}`;
+  }
+}
+
 export interface BalancesResponse {
   balances: WalletBalance[];
 }