func handleInvoke()

in lambda/invoke_loop.go [39:67]

• 25 lines of code
• 7 McCabe index (conditional complexity)

func handleInvoke(invoke *invoke, function *Function) error {
	functionRequest, err := convertInvokeRequest(invoke)
	if err != nil {
		return fmt.Errorf("unexpected error occurred when parsing the invoke: %v", err)
	}

	functionResponse := &messages.InvokeResponse{}
	if err := function.Invoke(functionRequest, functionResponse); err != nil {
		return fmt.Errorf("unexpected error occurred when invoking the handler: %v", err)
	}

	if functionResponse.Error != nil {
		errorPayload := safeMarshal(functionResponse.Error)
		log.Printf("%s", errorPayload)
		if err := invoke.failure(errorPayload, contentTypeJSON); err != nil {
			return fmt.Errorf("unexpected error occurred when sending the function error to the API: %v", err)
		}
		if functionResponse.Error.ShouldExit {
			return fmt.Errorf("calling the handler function resulted in a panic, the process should exit")
		}
		return nil
	}

	if err := invoke.success(functionResponse.Payload, contentTypeJSON); err != nil {
		return fmt.Errorf("unexpected error occurred when sending the function functionResponse to the API: %v", err)
	}

	return nil
}