Created
May 21, 2019 18:17
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The jwt helper
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| const jwt = require("jsonwebtoken"); | |
| const config = require("../../config")(); | |
| module.exports = { | |
| /** | |
| * sign - create a jwt from payload. | |
| * | |
| * @param {Object} payload the payload send to the user | |
| * @param {Function} callback function envoked with two parameters | |
| * 1. error the error in operation | |
| * 2. token the signed payload | |
| * @returns {Promise} | |
| */ | |
| sign(payload, callback) { | |
| return new Promise((resolve, reject) => { | |
| jwt.sign( | |
| { ...payload, exp: Date.now() + config.JWT.EXPIRATION_TIME }, | |
| config.JWT.SECERET, | |
| { algorithm: config.JWT.ALGORITHM }, | |
| function(errorInSign, token) { | |
| if (errorInSign) { | |
| if (callback) { | |
| callback(errorInSign.message); | |
| resolve(null); | |
| } else { | |
| reject(errorInSign.message); | |
| } | |
| } else { | |
| if (callback) { | |
| callback(null, token); | |
| resolve(null); | |
| } else { | |
| resolve(token); | |
| } | |
| } | |
| } | |
| ); | |
| }); | |
| }, | |
| /** | |
| * verify - check the token signature. | |
| * | |
| * @param {String} token the token for verification | |
| * @param {Function} callback function envoked on completion of the task with | |
| * 1. error the error in verification | |
| * 2. if verification is successfull the decoded data is passed. | |
| * @returns {Promise} | |
| */ | |
| verify(token, callback) { | |
| return new Promise((resolve, reject) => { | |
| jwt.verify(token, config.JWT.SECERET, function( | |
| errorInVerfication, | |
| decodedData | |
| ) { | |
| if (errorInVerfication) { | |
| if (callback) { | |
| callback(errorInVerfication.message); | |
| resolve(null); | |
| } else { | |
| reject(errorInVerfication.message); | |
| } | |
| } else { | |
| if (callback) { | |
| callback(null, decodedData); | |
| resolve(null); | |
| } else { | |
| resolve(decodedData); | |
| } | |
| } | |
| }); | |
| }); | |
| } | |
| }; |
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