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import {ResponseTypes} from './enums';
import {CONST_EXPR, isString, isPresent, Json} from 'angular2/src/core/facade/lang';
import {BaseException, WrappedException} from 'angular2/src/core/facade/exceptions';
import {Headers} from './headers';
import {ResponseOptions} from './base_response_options';
import {isJsObject} from './http_utils';
/**
* 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.
*
* #Example
*
* ```
* http.request('my-friends.txt').toRx().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.
*/
export class Response {
/**
* One of "basic", "cors", "default", "error, or "opaque".
*
* Defaults to "default".
*/
type: ResponseTypes;
/**
* 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;
/**
* 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.
*/
bytesLoaded: number;
/**
* Non-standard property
*
* Denotes how many bytes are expected in the final response body.
*/
totalBytes: number;
/**
* Headers object based on the `Headers` class in the [Fetch
* Spec](https://fetch.spec.whatwg.org/#headers-class).
*/
headers: Headers;
// TODO: Support ArrayBuffer, JSON, FormData, Blob
private _body: string | Object;
constructor(responseOptions: ResponseOptions) {
this._body = responseOptions.body;
this.status = responseOptions.status;
this.statusText = responseOptions.statusText;
this.headers = responseOptions.headers;
this.type = responseOptions.type;
this.url = responseOptions.url;
}
/**
* Not yet implemented
*/
// TODO: Blob return type
blob(): any { throw new BaseException('"blob()" method not implemented on Response superclass'); }
/**
* Attempts to return body as parsed `JSON` object, or raises an exception.
*/
json(): Object {
var jsonResponse;
if (isJsObject(this._body)) {
jsonResponse = this._body;
} else if (isString(this._body)) {
jsonResponse = Json.parse(<string>this._body);
}
return jsonResponse;
}
/**
* Returns the body as a string, presuming `toString()` can be called on the response body.
*/
text(): string { return this._body.toString(); }
/**
* Not yet implemented
*/
// TODO: ArrayBuffer return type
arrayBuffer(): any {
throw new BaseException('"arrayBuffer()" method not implemented on Response superclass');
}
}