2 files changed, 62 insertions, 5 deletions
diff --git a/packages/taler-util/src/taleruri.ts b/packages/taler-util/src/taleruri.ts
index 777cb5245..fff1ca833 100644
--- a/packages/taler-util/src/taleruri.ts
+++ b/packages/taler-util/src/taleruri.ts
@@ -767,7 +767,7 @@ function getUrlInfo(
   const qp = new URLSearchParams();
   let withParams = false;
   Object.entries(params).forEach(([name, value]) => {
-    if (value) {
+    if (value !== undefined) {
       withParams = true;
       qp.append(name, value);
     }
diff --git a/packages/taler-util/src/wallet-types.ts b/packages/taler-util/src/wallet-types.ts
index 38e5787ba..3179cd6f3 100644
--- a/packages/taler-util/src/wallet-types.ts
+++ b/packages/taler-util/src/wallet-types.ts
@@ -379,6 +379,54 @@ export interface Balance {
   requiresUserInput: boolean;
 }
 
+export const codecForScopeInfoGlobal = (): Codec<ScopeInfoGlobal> =>
+  buildCodecForObject<ScopeInfoGlobal>()
+    .property("currency", codecForString())
+    .property("type", codecForConstString(ScopeType.Global))
+    .build("ScopeInfoGlobal");
+
+export const codecForScopeInfoExchange = (): Codec<ScopeInfoExchange> =>
+  buildCodecForObject<ScopeInfoExchange>()
+    .property("currency", codecForString())
+    .property("type", codecForConstString(ScopeType.Exchange))
+    .property("url", codecForString())
+    .build("ScopeInfoExchange");
+
+export const codecForScopeInfoAuditor = (): Codec<ScopeInfoAuditor> =>
+  buildCodecForObject<ScopeInfoAuditor>()
+    .property("currency", codecForString())
+    .property("type", codecForConstString(ScopeType.Auditor))
+    .property("url", codecForString())
+    .build("ScopeInfoAuditor");
+
+export const codecForScopeInfo = (): Codec<ScopeInfo> =>
+  buildCodecForUnion<ScopeInfo>()
+    .discriminateOn("type")
+    .alternative(ScopeType.Global, codecForScopeInfoGlobal())
+    .alternative(ScopeType.Exchange, codecForScopeInfoExchange())
+    .alternative(ScopeType.Auditor, codecForScopeInfoAuditor())
+    .build("ScopeInfo");
+
+export interface GetCurrencyInfoRequest {
+  scope: ScopeInfo;
+}
+
+export const codecForGetCurrencyInfoRequest =
+  (): Codec<GetCurrencyInfoRequest> =>
+    buildCodecForObject<GetCurrencyInfoRequest>()
+      .property("scope", codecForScopeInfo())
+      .build("GetCurrencyInfoRequest");
+
+export interface GetCurrencyInfoResponse {
+  decimalSeparator: string;
+  numFractionalDigits: number;
+  numTinyDigits: number;
+  /**
+   * Is the currency name leading or trailing?
+   */
+  isCurrencyNameLeading: boolean;
+}
+
 export interface InitRequest {
   skipDefaults?: boolean;
 }
@@ -393,10 +441,19 @@ export enum ScopeType {
   Auditor = "auditor",
 }
 
-export type ScopeInfo =
-  | { type: ScopeType.Global; currency: string }
-  | { type: ScopeType.Exchange; currency: string; url: string }
-  | { type: ScopeType.Auditor; currency: string; url: string };
+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;
+  url: string;
+};
+
+export type ScopeInfo = ScopeInfoGlobal | ScopeInfoExchange | ScopeInfoAuditor;
 
 export interface BalancesResponse {
   balances: Balance[];