xr

Really simple wrapper around XHR that provides a few bits of nice functionality, exposes the XHR object wherever relevant, and returns an ES6 Promise (or whatever Promise is set to globally, if you want to use something else).

The idea was to make a pragmatic library that's pre-configured for the 90% use case, but override-able for anyone that wants to do anything a bit off the beaten track.

For instance, the library is by default set up to send/receive JSON (with the associated headers and parser/dumper already set up), but if you wanted to use something like XML, it's easy enough to override that with a few lines.

It's lightweight, has no dependencies (other than having ES6 polyfills available), and adds pretty much no overhead over the standard XHR API.

Quickstart

xr.get('/api/items', {take: 5})
  .then(res => console.log(res.data));
    
xr.post('/api/item', {name: 'hello'})
  .then(res => console.log("new item", res.data));

Extended syntax:

xr({
  method: xr.Methods.GET,
  url: '/api/items',
  params: {take: 5},
  events: {
    progress: (xhr, xhrProgressEvent) => {
      console.log("xhr", xhr);
      console.log("progress", xhrProgressEvent);
    }
  }
});

Custom promise class (will be instantiated with new):

xr.get('/url', {}, {
  promise: myPromiseClass
});

Raw mode (data is not dumped/loaded):

xr.put('/url', 'some data', {
  raw: true
});

Custom dump/load:

xr.post('/url', {'some': 'data'}, {
  dump: data => msgpack.encode(data),
  load: data => msgpack.decode(data)
});

API is simple, for now consult source.

Features

• Returns ES6 promises.
• Has query parameter generation.
• Supports events.

Alias Methods

You can do some quick aliases to requests, for instance:

xr.get('/my-url')

Requirements

There must be a polyfill that supports at least the standard ES6 promise API (xr will use whatever's there), and Object.assign().

License

See LICENSE