taler-ios

commit 1ac17f16f70c36a248015b3cfe20169bd7b0359b
parent 5527a4ec55507601b056eed492469ec02bb92613
Author: Marc Stibane <marc@taler.net>
Date:   Tue, 10 Mar 2026 15:02:25 +0100

getDefaultExchanges

Diffstat:
M
TalerWallet1/Model/Model+Exchange.swift
 | 
34
++++++++++++++++++++++++++++++++++

1 file changed, 34 insertions(+), 0 deletions(-)
diff --git a/TalerWallet1/Model/Model+Exchange.swift b/TalerWallet1/Model/Model+Exchange.swift
@@ -127,6 +127,17 @@ struct Exchange: Codable, Hashable, Identifiable {
     }
 }
 // MARK: -
+struct DefaultExchange: Codable {
+    var talerUri: String                        // taler://withdraw-exchange/exchange.taler-ops.ch/
+    var currency: String                        // CHF
+    var currencySpec: CurrencySpecification     // .name = "Swiss Francs"... alt_unit_names":{"0":"Fr.","-2":"Rp."}
+//    var restrictions: [String]                  // ["Swiss bank accounts only"]
+}
+extension DefaultExchange: Identifiable {
+    var id: String { talerUri }
+
+}
+// MARK: -
 /// A request to list exchanges names for a currency
 fileprivate struct ListExchanges: WalletBackendFormattedRequest {
     func operation() -> String { "listExchanges" }
@@ -143,6 +154,17 @@ fileprivate struct ListExchanges: WalletBackendFormattedRequest {
     }
 }
 
+fileprivate struct DefaultExchanges: WalletBackendFormattedRequest {
+    func operation() -> String { "getDefaultExchanges" }
+    func args() -> Args { Args() }
+
+    struct Args: Encodable {}                           // no arguments needed
+
+    struct Response: Decodable {        // list of known exchanges
+        var defaultExchanges: [DefaultExchange]
+    }
+}
+
 /// A request to get info for one exchange.
 fileprivate struct GetExchangeByUrl: WalletBackendFormattedRequest {
     func operation() -> String { "getExchangeEntryByUrl" }
@@ -257,6 +279,18 @@ extension WalletModel {
         }
     }
 
+    /// ask wallet-core for its list of default exchanges   ==> currently only taler-ops.ch
+    nonisolated func getDefaultExchanges(viewHandles: Bool = false)
+    async -> [DefaultExchange] {     // M for MainActor
+        do {
+            let request = DefaultExchanges()
+            let response = try await sendRequest(request, viewHandles: viewHandles)
+            return response.defaultExchanges
+        } catch {
+            return []               // empty, but not nil
+        }
+    }
+
     /// add a new exchange with URL to the wallet's list of known exchanges
     nonisolated func getExchangeByUrl(url: String, viewHandles: Bool = false)
       async throws -> Exchange {