jwt-check-expiry/lib/index.js

check JWT is expired or not.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.decode = void 0;
/**
 * @author Vipin Kumar, Parveen Kumar
 * @summary  Check JWT is expired or not
 * @description A global JWT validator utility check weather expired or not.
 * @public
 */
var atob_1 = require("./atob");
function isJwtTokenExpired(token, optionalKey) {
    if (typeof token !== 'string' || !token)
        throw new Error('Invalid JWT token');
    var decodedToken = decode(token);
    var currentTime = new Date().getTime() / 1000;
    if (!optionalKey && decodedToken.payload.exp) {
        return currentTime > decodedToken.payload.exp;
    }
    else if (decodedToken.payload.hasOwnProperty(optionalKey)) {
        if (currentTime > (decodedToken.payload["" + optionalKey])) {
            return true;
        }
        else {
            return false;
        }
    }
    else {
        return true;
    }
}
exports.default = isJwtTokenExpired;
function decode(token) {
    var _a;
    var header = {};
    var payload = {};
    try {
        _a = token
            .split('.')
            .slice(0, 2)
            .map(function (encodedString) { return JSON.parse(atob_1.default(encodedString)); }), header = _a[0], payload = _a[1];
    }
    catch (err) {
        throw new Error('Invalid JWT token');
    }
    return { header: header, payload: payload };
}
exports.decode = decode;
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