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< @angular/commonAngular/docs/8/api/common/http



Implements an HTTP client API for Angular apps that relies on the XMLHttpRequest interface exposed by browsers.

Includes testability features, typed request and response objects, request and response interception, observable APIs, and streamlined error handling.

For usage information, see the HTTP Client guide.

Entry point exports


HttpClientJsonpModule Configures the dependency injector for HttpClient with supporting services for JSONP. Without this module, Jsonp requests reach the backend with method JSONP, where they are rejected.
HttpClientModule Configures the dependency injector for HttpClient with supporting services for XSRF. Automatically imported by HttpClientModule.
HttpClientXsrfModule Configures XSRF protection support for outgoing requests.


HttpBackend A final HttpHandler which will dispatch the request via browser HTTP APIs to a backend.
HttpClient Performs HTTP requests. This service is available as an injectable class, with methods to perform HTTP requests. Each request method has multiple signatures, and the return type varies based on the signature that is called (mainly the values of observe and responseType).
HttpErrorResponse A response that represents an error or failure, either from a non-successful HTTP status, an error while executing the request, or some other failure which occurred during the parsing of the response.
HttpHandler Transforms an HttpRequest into a stream of HttpEvents, one of which will likely be a HttpResponse.
HttpHeaderResponse A partial HTTP response which only includes the status and header data, but no response body.
HttpHeaders Represents the header configuration options for an HTTP request. Instances are immutable. Modifying methods return a cloned instance with the change. The original object is never changed.
HttpParams An HTTP request/response body that represents serialized parameters, per the MIME type application/x-www-form-urlencoded.
HttpRequest An outgoing HTTP request with an optional typed body.
HttpResponse A full HTTP response, including a typed response body (which may be null if one was not returned).
HttpResponseBase Base class for both HttpResponse and HttpHeaderResponse.
HttpUrlEncodingCodec Provides encoding and decoding of URL parameter and query-string values.
HttpXhrBackend Uses XMLHttpRequest to send requests to a backend server.
HttpXsrfTokenExtractor Retrieves the current XSRF token to use with the next outgoing request.
JsonpClientBackend Processes an HttpRequest with the JSONP method, by performing JSONP style requests.
JsonpInterceptor Identifies requests with the method JSONP and shifts them to the JsonpClientBackend.
XhrFactory A wrapper around the XMLHttpRequest constructor.


HttpDownloadProgressEvent A download progress event.
HttpEventType Type enumeration for the different kinds of HttpEvent.
HttpInterceptor Intercepts and handles an HttpRequest or HttpResponse.
HttpParameterCodec A codec for encoding and decoding parameters in URLs.
HttpProgressEvent Base interface for progress events.
HttpSentEvent An event indicating that the request was sent to the server. Useful when a request may be retried multiple times, to distinguish between retries on the final event stream.
HttpUploadProgressEvent An upload progress event.
HttpUserEvent A user-defined event.


HTTP_INTERCEPTORS A multi-provider token that represents the array of registered HttpInterceptor objects.
HttpEvent Union type for all possible events on the response stream.

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