(Node.js) Check PayPal Access Token Expiration

Checks to see if the PayPal access token expired.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // Note: Requires Chilkat v9.5.0.64 or greater.

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // In the example linked here: PayPal OAuth2 Token,
    // we fetched a PayPal access token and saved it to a JSON file.
    // We also recorded the current date/time.
    // Load this JSON file and compare the current date/time with the fetch date/time
    // and the "expires_in" value to see if the token is expired.

    var json = new chilkat.JsonObject();
    var success = json.LoadFile("qa_data/tokens/paypal.json");
    if (success !== true) {
        console.log("Failed to load access key json file.");
        return;
    }

    // Get the current date/time.
    var dateTime = new chilkat.CkDateTime();
    var bLocalTime = false;
    var dtNow = dateTime.GetAsUnixTime(bLocalTime);

    // Get the access token create date/time
    var dtCreate = json.IntOf("tokenCreateTimeUtc");

    // Find out how many seconds have elapsed.
    var numSeconds = dtNow - dtCreate;

    // Get the expires_in value from the JSON.
    var expires_in = json.IntOf("expires_in");

    console.log("token age (in seconds) = " + numSeconds);
    console.log("expires_in = " + expires_in);

    // If the token expired, or if it will expire in 5 minutes or less,
    // get another token.
    if (numSeconds < (expires_in - 300)) {
        console.log("The token is not yet expired.  No need to fetch another.");
        return;
    }

    console.log("Time to fetch a new access token...");

    // Get another token..
    // See the example at Get PayPal OAuth2 Token
    // to get another token..

}

chilkatExample();