85 lines
1.9 KiB
TypeScript
85 lines
1.9 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Json, isString} from '../src/facade/lang';
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import {isJsObject, stringToArrayBuffer} from './http_utils';
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import {URLSearchParams} from './url_search_params';
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/**
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* HTTP request body used by both {@link Request} and {@link Response}
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* https://fetch.spec.whatwg.org/#body
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*/
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export abstract class Body {
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/**
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* @internal
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*/
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protected _body: any;
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/**
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* Attempts to return body as parsed `JSON` object, or raises an exception.
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*/
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json(): any {
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if (isString(this._body)) {
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return Json.parse(<string>this._body);
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}
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if (this._body instanceof ArrayBuffer) {
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return Json.parse(this.text());
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}
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return this._body;
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}
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/**
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* Returns the body as a string, presuming `toString()` can be called on the response body.
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*/
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text(): string {
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if (this._body instanceof URLSearchParams) {
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return this._body.toString();
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}
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if (this._body instanceof ArrayBuffer) {
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return String.fromCharCode.apply(null, new Uint16Array(<ArrayBuffer>this._body));
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}
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if (isJsObject(this._body)) {
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return Json.stringify(this._body);
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}
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return this._body.toString();
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}
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/**
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* Return the body as an ArrayBuffer
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*/
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arrayBuffer(): ArrayBuffer {
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if (this._body instanceof ArrayBuffer) {
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return <ArrayBuffer>this._body;
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}
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return stringToArrayBuffer(this.text());
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}
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/**
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* Returns the request's body as a Blob, assuming that body exists.
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*/
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blob(): Blob {
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if (this._body instanceof Blob) {
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return <Blob>this._body;
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}
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if (this._body instanceof ArrayBuffer) {
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return new Blob([this._body]);
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}
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throw new Error('The request body isn\'t either a blob or an array buffer');
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}
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}
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