Postman JWT token generator

postman_jwt_token_generator.js

var removeIllegalCharacters = function (input) {
    console.info(input);
    return input
        .replace(/=/g, '')
        .replace(/\+/g, '-')
        .replace(/\//g, '_');
};

var base64object = function (input) {
    var inputWords = CryptoJS.enc.Utf8.parse(JSON.stringify(input));
    var base64 = CryptoJS.enc.Base64.stringify(inputWords);
    var output = removeIllegalCharacters(base64);
    return output;
};

var header = {
    "alg": "HS256" 
};

var currentTime = new Date(); 
var issuedAtTimeSeconds = currentTime / 1000; // iat
var expirationTimeSeconds = currentTime / 1000 + 3600; // exp 
var payload = {
    "sub": "test@test.com",
    "aud": "server.test.com",
    "exp": expirationTimeSeconds,
    "iat": issuedAtTimeSeconds,
    "iss": "server.test.com",
    "subtype": "user",
    "isAdmin": false,
    "userId": "xxxxxxx-xxxxxx"
};

var SECRET_KEY = 'yourverysecretkey'; 
var unsignedToken = base64object(header) + "." + base64object(payload);
var signatureHash = CryptoJS.HmacSHA256(unsignedToken, SECRET_KEY);
var signature = CryptoJS.enc.Base64.stringify(signatureHash);
var token = unsignedToken + '.' + signature;
var formattedToken = removeIllegalCharacters(token);

pm.environment.set('jwt', formattedToken);