$ npm install pulsar-client

const Pulsar = require("pulsar-client");

(async () => {
  const client = new Pulsar.Client({
 serviceUrl: "http://*",   // Replace with the access address. You can copy the complete address from the Cluster page in the console.
 authentication: new Pulsar.AuthenticationToken({
   token: "eyJh**",       // Change the example value to your actual token.
 }),
  });
  await client.close();
})();