angular-docs-cn/packages/http/src/static_response.ts

105 lines
2.8 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {ResponseOptions} from './base_response_options';
import {Body} from './body';
import {ResponseType} from './enums';
import {Headers} from './headers';
/**
* Creates `Response` instances from provided values.
*
* Though this object isn't
* usually instantiated by end-users, it is the primary object interacted with when it comes time to
* add data to a view.
*
* @usageNotes
* ### Example
*
* ```
* http.request('my-friends.txt').subscribe(response => this.friends = response.text());
* ```
*
* The Response's interface is inspired by the Response constructor defined in the [Fetch
* Spec](https://fetch.spec.whatwg.org/#response-class), but is considered a static value whose body
* can be accessed many times. There are other differences in the implementation, but this is the
* most significant.
*
* @deprecated see https://angular.io/guide/http
* @publicApi
*/
export class Response extends Body {
/**
* One of "basic", "cors", "default", "error", or "opaque".
*
* Defaults to "default".
*/
type: ResponseType;
/**
* True if the response's status is within 200-299
*/
ok: boolean;
/**
* URL of response.
*
* Defaults to empty string.
*/
url: string;
/**
* Status code returned by server.
*
* Defaults to 200.
*/
status: number;
/**
* Text representing the corresponding reason phrase to the `status`, as defined in [ietf rfc 2616
* section 6.1.1](https://tools.ietf.org/html/rfc2616#section-6.1.1)
*
* Defaults to "OK"
*/
statusText: string|null;
/**
* Non-standard property
*
* Denotes how many of the response body's bytes have been loaded, for example if the response is
* the result of a progress event.
*/
// TODO(issue/24571): remove '!'.
bytesLoaded !: number;
/**
* Non-standard property
*
* Denotes how many bytes are expected in the final response body.
*/
// TODO(issue/24571): remove '!'.
totalBytes !: number;
/**
* Headers object based on the `Headers` class in the [Fetch
* Spec](https://fetch.spec.whatwg.org/#headers-class).
*/
headers: Headers|null;
constructor(responseOptions: ResponseOptions) {
super();
this._body = responseOptions.body;
this.status = responseOptions.status !;
this.ok = (this.status >= 200 && this.status <= 299);
this.statusText = responseOptions.statusText;
this.headers = responseOptions.headers;
this.type = responseOptions.type !;
this.url = responseOptions.url !;
}
toString(): string {
return `Response with status: ${this.status} ${this.statusText} for URL: ${this.url}`;
}
}