kirubel321/api

API

• JavaScript can send network requests to the server and load new information whenever it’s needed.

• we can use a network request to: Submit an order, Load user information, Receive latest updates from the server, …etc.

• And all of that without reloading the page!

• There’s an umbrella term “AJAX” (abbreviated Asynchronous JavaScript And XML) for network requests from JavaScript. We don’t have to use XML though: the term comes from old times, that’s why that word is there. You may have heard that term already.

• There are multiple ways to send a network request and get information from the server.

• The fetch() method is modern and versatile, so we’ll start with it. It’s not supported by old browsers (can be polyfilled), but very well supported among the modern ones.

• ok – boolean, true if the HTTP status code is 200-299.

• Second, to get the response body, we need to use an additional method call.

• response.json() – parse the response as JSON,