Node Js

npm add cryptolens

const key = require('cryptolens').Key;
const Helpers = require('cryptolens').Helpers;

var RSAPubKey = "Your RSA Public key, which can be found here: https://app.cryptolens.io/User/Security";
var result = key.Activate(token="Access token with with Activate permission", RSAPubKey, ProductId=3349, Key="GEBNC-WZZJD-VJIHG-GCMVD", MachineCode=Helpers.GetMachineCode());

result.then(function(license) {

    // success
    
    // Please see https://app.cryptolens.io/docs/api/v3/model/LicenseKey for a complete list of parameters.
    console.log(license.Created);

}).catch(function(error) {
    // in case of an error, an Error object is returned.
    console.log(error.message);
});

const Helpers = require('cryptolens').Helpers;

var licenseString = Helpers.SaveAsString(license);

var license = Helpers.LoadFromString(RSAPubKey, licenseString);

var license = Helpers.LoadFromString(RSAPubKey, licenseString, 30);