angular-cn/modules/angular2/src/http/static_request.ts

61 lines
2.3 KiB
TypeScript

import {RequestMethods, RequestModesOpts, RequestCredentialsOpts, RequestCacheOpts} from './enums';
import {RequestOptions} from './base_request_options';
import {IRequestOptions} from './interfaces';
import {Headers} from './headers';
import {BaseException, RegExpWrapper, CONST_EXPR, isPresent} from 'angular2/src/facade/lang';
import {StringMap, StringMapWrapper} from 'angular2/src/facade/collection';
// TODO(jeffbcross): properly implement body accessors
/**
* Creates `Request` instances with default values.
*
* The Request's interface is inspired by the Request constructor defined in the [Fetch
* Spec](https://fetch.spec.whatwg.org/#request-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 Request {
/**
* Http method with which to perform the request.
*
* Defaults to GET.
*/
method: RequestMethods;
mode: RequestModesOpts;
credentials: RequestCredentialsOpts;
/**
* Headers object based on the `Headers` class in the [Fetch
* Spec](https://fetch.spec.whatwg.org/#headers-class). {@link Headers} class reference.
*/
headers: Headers;
/** Url of the remote resource */
url: string;
// TODO: support URLSearchParams | FormData | Blob | ArrayBuffer
private _body: string;
cache: RequestCacheOpts;
// TODO(jeffbcross): determine way to add type to destructured args
constructor(options?: IRequestOptions) {
var requestOptions: RequestOptions = options instanceof
StringMap ? RequestOptions.fromStringWrapper(<StringMap<string, any>>options) :
<RequestOptions>options;
this.url = requestOptions.url;
this._body = requestOptions.body;
this.method = requestOptions.method;
// TODO(jeffbcross): implement behavior
this.mode = requestOptions.mode;
// Defaults to 'omit', consistent with browser
// TODO(jeffbcross): implement behavior
this.credentials = requestOptions.credentials;
this.headers = requestOptions.headers;
this.cache = requestOptions.cache;
}
/**
* Returns the request's body as string, assuming that body exists. If body is undefined, return
* empty
* string.
*/
text(): String { return isPresent(this._body) ? this._body.toString() : ''; }
}