(Node.js) Generate ULID

See more ULID/UUID Examples

Generate a ULID using a specified timestamp or the current system date timestamp.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

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() {

    var dt = new chilkat.CkDateTime();

    // Set dt to the current system date/time.
    dt.SetFromCurrentSystemTime();

    // Generate a ULID for the current UTC date/time.
    // (i.e. the current UTC UNIX-time)
    var utc = true;
    var ulid = dt.UlidGenerate(utc);
    console.log(ulid);

    // example result: 01GRGCH4J88RECEN4D4VK4F629

    // Generate a ULID using the local timezone's current time.
    utc = false;
    ulid = dt.UlidGenerate(utc);
    console.log(ulid);

    // example result: 01GRH14AA82EY9A7S99YYF2QDY

    // -----------------------------------------------
    // To generate a ULID using a specific UNIX timestamp

    // For example, the Unix timestamp for Sun, 05 Feb 2023 14:57:46 GMT
    // is 1675609066

    // For more information about the Epoch Unix Timestamp, see Epoch Unix Timestamp

    // To generate a ULID from a specified date/time, set the CkDateTime and then generate the ULID.
    var dt2 = new chilkat.CkDateTime();
    utc = true;
    dt2.SetFromUnixTime(utc,1675609066);
    ulid = dt2.UlidGenerate(utc);
    console.log(ulid);

    // example result: 01GRH1AJGG3P5K04DJHN3QJCX3

}

chilkatExample();