ms-rest-js/lib/credentials/tokenCredentials.ts

46 строки
1.6 KiB
TypeScript

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
import { HttpHeaders } from "../httpHeaders";
import { Constants } from "../util/constants";
import { WebResource } from "../webResource";
import { ServiceClientCredentials } from "./serviceClientCredentials";
const HeaderConstants = Constants.HeaderConstants;
const DEFAULT_AUTHORIZATION_SCHEME = "Bearer";
/**
* A credentials object that uses a token string and a authorzation scheme to authenticate.
*/
export class TokenCredentials implements ServiceClientCredentials {
token: string;
authorizationScheme: string = DEFAULT_AUTHORIZATION_SCHEME;
/**
* Creates a new TokenCredentials object.
*
* @constructor
* @param {string} token The token.
* @param {string} [authorizationScheme] The authorization scheme.
*/
constructor(token: string, authorizationScheme: string = DEFAULT_AUTHORIZATION_SCHEME) {
if (!token) {
throw new Error("token cannot be null or undefined.");
}
this.token = token;
this.authorizationScheme = authorizationScheme;
}
/**
* Signs a request with the Authentication header.
*
* @param {WebResource} webResource The WebResource to be signed.
* @return {Promise<WebResource>} The signed request object.
*/
signRequest(webResource: WebResource) {
if (!webResource.headers) webResource.headers = new HttpHeaders();
webResource.headers.set(HeaderConstants.AUTHORIZATION, `${this.authorizationScheme} ${this.token}`);
return Promise.resolve(webResource);
}
}