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JavaScript Fetch API

The Fetch API interface allows web browser to make HTTP requests to web servers.

If you use the XMLHttpRequest Object, Fetch can do the same in a simpler way.

Browser Support

The numbers in the table specify the first browser versions that fully support Fetch API:


Chrome 42 Edge 14 Firefox 40 Safari 10.1 Opera 29
Apr 2015 Aug 2016 Aug 2015 Mar 2017 Apr 2015

A Fetch API Example

The example below fetches a file and displays the content:

Example

fetch(file)
.then(x => x.text())
.then(y => myDisplay(y));
Try it Yourself »

Since Fetch is based on async and await, the example above might be easier to understand like this:

Example

async function getText(file) {
  let x = await fetch(file);
  let y = await x.text();
  myDisplay(y);
}
Try it Yourself »

Or even bettter: Use understandable names instead of x and y:

Example

async function getText(file) {
  let myObject = await fetch(file);
  let myText = await myObject.text();
  myDisplay(myText);
}
Try it Yourself »