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CognitoJwtToken.js
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CognitoJwtToken.js
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/*!
* Copyright 2016 Amazon.com,
* Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Amazon Software License (the "License").
* You may not use this file except in compliance with the
* License. A copy of the License is located at
*
* http://aws.amazon.com/asl/
*
* or in the "license" file accompanying this file. This file is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, express or implied. See the License
* for the specific language governing permissions and
* limitations under the License.
*/
import { Buffer } from 'buffer/';
/** @class */
export default class CognitoJwtToken {
/**
* Constructs a new CognitoJwtToken object
* @param {string=} token The JWT token.
*/
constructor(token) {
// Assign object
this.jwtToken = token || '';
this.payload = this.decodePayload();
}
/**
* @returns {string} the record's token.
*/
getJwtToken() {
return this.jwtToken;
}
/**
* @returns {int} the token's expiration (exp member).
*/
getExpiration() {
return this.payload.exp;
}
/**
* @returns {int} the token's "issued at" (iat member).
*/
getIssuedAt() {
return this.payload.iat;
}
/**
* @returns {object} the token's payload.
*/
decodePayload() {
const payload = this.jwtToken.split('.')[1];
try {
return JSON.parse(Buffer.from(payload, 'base64').toString('utf8'));
} catch (err) {
return {};
}
}
}