Function dispatchCommon

hero/func_result.go:336–374

dispatchCommon is being used internally to send commonly used data to the response writer with a smart way.

(ctx *context.Context,
	statusCode int, contentType string, content []byte, v interface{}, handler ResultHandler, found bool)

// dispatchCommon is being used internally to send
// commonly used data to the response writer with a smart way.
func dispatchCommon(ctx *context.Context,
	statusCode int, contentType string, content []byte, v interface{}, handler ResultHandler, found bool) error {
	// if we have a false boolean as a return value
	// then skip everything and fire a not found,
	// we even don't care about the given status code or the object or the content.
	if !found {
		ctx.NotFound()
		return nil
	}

	status := statusCode
	if status == 0 {
		status = 200
	}

	// write the status code, the rest will need that before any write ofc.
	ctx.StatusCode(status)
	if contentType == "" {
		// to respect any ctx.ContentType(...) call
		// especially if v is not nil.
		if contentType = ctx.GetContentType(); contentType == "" {
			// if it's still empty set to JSON. (useful for dynamic middlewares that returns an int status code and the next handler dispatches the JSON,
			// see dependency-injection/basic/middleware example)
			contentType = context.ContentJSONHeaderValue
		}
	}

	// write the content type now (internal check for empty value)
	ctx.ContentType(contentType)

	if v != nil {
		return handler(ctx, v)
	}

	// .Write even len(content) == 0 , this should be called in order to call the internal tryWriteHeader,
	// it will not cost anything.
	_, err := ctx.Write(content)
	return err
}

// Response completes the `methodfunc.Result` interface.
// It's being used as an alternative return value which