feat: release v0.26 portable i18n and presentation adapters

httpx/response.go

@@ -53,6 +53,15 @@ func (c *Context) writeResult(result response.Result) (err error) {
 	if encoder == nil {
 		encoder = response.Default()
 	}
+	if c.errorLocalizer != nil && result.Err != nil {
+		if message, ok := c.localizedMessage(result.Err); ok {
+			result.MessageOverride = &message
+			if c.failure != nil {
+				c.failure = c.failure.Clone()
+				c.failure.Message = message
+			}
+		}
+	}
 	payload, err := encoder.Encode(result)
 	if err != nil {
 		return apierrors.Internal(err)
@@ -69,6 +78,17 @@ func (c *Context) writeResult(result response.Result) (err error) {
 	return c.WriteResponse(payload.Status, payload.Header, payload.Body)
 }
 
+// Presentation adapter failures cannot turn a business result into a new error.
+func (c *Context) localizedMessage(err error) (message string, ok bool) {
+	defer func() {
+		if recover() != nil {
+			message, ok = "", false
+		}
+	}()
+	registry := c.ErrorRegistry()
+	return c.errorLocalizer.Localize(c.Context(), registry, registry.Resolve(err))
+}
+
 // RespondStatus uses the current response format and error catalog, but keeps
 // the explicit HTTP status even if a catalog/custom encoder selects another.
 // This is useful for protocol endpoints such as health probes. Ordinary