Here is my question on stackoverflow.
Parse.Cloud.httpRequest call with HTTP request header
The point is that I sent an HTTP request but any callback functions are not called.
According to the suggested solution, I found the following two mistakes in my code.
- Wrong callback function
- I did not respond to a response from a server
Thanks to the solution, I could learn how to write a callback function for asynchronous operations in JavaScript.
This is a pattern for handling asynchronous operations in JavaScript that you can see in JavaScript libraries like AngularJS. It is called "JavaScript Promises".
I stepped into the very beginning of asynchronous operations in JavaScript this time. If I found something interesting, I will write it on this blog.