Function genResponseUnmarshal

pkg/codegen/template_helpers.go:131–267

genResponseUnmarshal generates unmarshaling steps for structured response payloads

(op *OperationDefinition)

// genResponseUnmarshal generates unmarshaling steps for structured response payloads
func genResponseUnmarshal(op *OperationDefinition) string {
	var handledCaseClauses = make(map[string]string)
	var unhandledCaseClauses = make(map[string]string)

	// Get the type definitions from the operation:
	typeDefinitions, err := op.GetResponseTypeDefinitions()
	if err != nil {
		panic(err)
	}

	if len(typeDefinitions) == 0 {
		// No types.
		return ""
	}

	// Add a case for each possible response:
	buffer := new(bytes.Buffer)
	responses := op.Spec.Responses
	for _, typeDefinition := range typeDefinitions {

		responseRef := responses.Value(typeDefinition.ResponseName)
		if responseRef == nil {
			continue
		}

		// We can't do much without a value:
		if responseRef.Value == nil {
			fmt.Fprintf(os.Stderr, "Response %s.%s has nil value\n", op.OperationId, typeDefinition.ResponseName)
			continue
		}

		// If there is no content-type then we have no unmarshaling to do:
		if len(responseRef.Value.Content) == 0 {
			caseAction := "break // No content-type"
			caseClauseKey := "case " + getConditionOfResponseName("rsp.StatusCode", typeDefinition.ResponseName) + ":"
			unhandledCaseClauses[prefixLeastSpecific+caseClauseKey] = fmt.Sprintf("%s\n%s\n", caseClauseKey, caseAction)
			continue
		}

		// If we made it this far then we need to handle unmarshaling for each content-type:
		SortedMapKeys := SortedMapKeys(responseRef.Value.Content)
		jsonCount := 0
		for _, contentTypeName := range SortedMapKeys {
			if slices.Contains(contentTypesJSON, contentTypeName) || util.IsMediaTypeJson(contentTypeName) {
				jsonCount++
			}
		}

		for _, contentTypeName := range SortedMapKeys {

			// We get "interface{}" when using "anyOf" or "oneOf" (which doesn't work with Go types):
			if typeDefinition.TypeName == "interface{}" {
				// Unable to unmarshal this, so we leave it out:
				continue
			}

			// Add content-types here (json / yaml / xml etc):
			switch {