Описание тега angular-http

The $http service is a core Angular service that facilitates communication with the remote HTTP servers via the browser's XMLHttpRequest object or via JSONP.

For unit testing applications that use $http service, see $httpBackend mock.

For a higher level of abstraction, please check out the $resource service.

The $http API is based on the deferred/promise APIs exposed by the $q service. While for simple usage patterns this doesn't matter much, for advanced usage it is important to familiarize yourself with these APIs and the guarantees they provide.

General usage

The $http service is a function which takes a single argument — a configuration object — that is used to generate an HTTP request and returns a promise with two $http specific methods: .then and .catch.

// Simple GET request example :
$http.get('/someUrl')
  .then(function(response) {
    var data = response.data;
    // this callback will be called asynchronously
    // when the response is available
}).catch(function(response) {
    // called asynchronously if an error occurs
    // or server returns response with an error status.
});
// Simple POST request example (passing data) :
$http.post('/someUrl', {msg:'hello word!'})
  .then(function(response) {
    // this callback will be called asynchronously
    // when the response is available
}).catch(function(response) {
    // called asynchronously if an error occurs
    // or server returns response with an error status.
});

Since the returned value of calling the $http function is a promise, you can also use the then method to register callbacks, and these callbacks will receive a single argument – an object representing the response. See the API signature and type info below for more details.

A response status code between 200 and 299 is considered a success status and will result in the success callback being called. Note that if the response is a redirect, XMLHttpRequest will transparently follow it, meaning that the error callback will not be called for such responses.