taler-typescript-core

commit 960139825f14cc4d1e00465cbeb4fcca8b8a7c61
parent f808dafcd97b4c96bb5348401b195165369702fa
Author: Sebastian <sebasjm@taler-systems.com>
Date:   Wed,  6 May 2026 08:47:02 -0300

fix: make new template parser backward compatible (reported by ivan)

Diffstat:
M
packages/taler-util/src/codec.ts
 | 
19
+++++++++++++++++++
M
packages/taler-util/src/types-taler-merchant.ts
 | 
18
+++++++++++++-----

2 files changed, 32 insertions(+), 5 deletions(-)
diff --git a/packages/taler-util/src/codec.ts b/packages/taler-util/src/codec.ts
@@ -246,6 +246,25 @@ class UnionCodecBuilder<
   /**
    * Define a property for the object.
    */
+  alternativeOnMissing<V>(
+    tagValue: TargetType[TagPropertyLabel],
+    codec: Codec<V>,
+  ): UnionCodecBuilder<
+    TargetType,
+    TagPropertyLabel,
+    CommonBaseType,
+    PartialTargetType | V
+  > {
+    if (!codec) {
+      throw Error("inner codec must be defined");
+    }
+    this.alternatives.set(undefined, { codec, tagValue });
+    return this as any;
+  }
+
+  /**
+   * Define a property for the object.
+   */
   alternative<V>(
     tagValue: TargetType[TagPropertyLabel],
     codec: Codec<V>,
diff --git a/packages/taler-util/src/types-taler-merchant.ts b/packages/taler-util/src/types-taler-merchant.ts
@@ -4501,10 +4501,11 @@ export interface ExchangeStatusDetail {
   keys_hint: string;
 }
 
-export const codecForExchangeStatusResponse = (): Codec<ExchangeStatusResponse> =>
-  buildCodecForObject<ExchangeStatusResponse>()
-    .property("exchanges", codecForList(codecForExchangeStatusDetail()))
-    .build("TalerMerchantApi.ExchangeStatusResponse");
+export const codecForExchangeStatusResponse =
+  (): Codec<ExchangeStatusResponse> =>
+    buildCodecForObject<ExchangeStatusResponse>()
+      .property("exchanges", codecForList(codecForExchangeStatusDetail()))
+      .build("TalerMerchantApi.ExchangeStatusResponse");
 
 export const codecForExchangeStatusDetail = (): Codec<ExchangeStatusDetail> =>
   buildCodecForObject<ExchangeStatusDetail>()
@@ -5406,7 +5407,14 @@ export const codecForTemplateContractDetails =
         TemplateType.INVENTORY_CART,
         codecForTemplateContractInventoryCart(),
       )
-      .alternative(TemplateType.PAIVANA, codecForTemplateContractPaivana())
+      .alternative(
+        TemplateType.PAIVANA,
+        codecForTemplateContractPaivana(),
+      )
+      .alternativeOnMissing(
+        TemplateType.FIXED_ORDER,
+        codecForTemplateContractFixedOrder(),
+      )
       .build("TalerMerchantApi.TemplateContractDetails");
 
 export const codecForTemplateContractDetailsDefaults =