var asana = require('asana-api');

  var client = asana.createClient({
    apiKey: 'your-secret-api-key'
  });

  client.users.list(function (err, users) {
    //
    // List all users for this Asana account.
    //
    console.dir(users);
  });

  var asana = require('asana-api');

  var client = asana.createClient({
    token: 'your-oauth-token'
  });

  client.users.list(function (err, users) {
    //
    // List all users for this Asana account.
    //
    console.dir(users);
  });

  var asana = require('asana-api');

  var client = asana.createClient({
    oauth: {
      accessToken : "your-oauth-token",
      refreshToken : "your-oauth-refresh-token",
      clientId : "your-client-id",
      clientSecret : "your-client-secret",
      redirectUrl : "your-redirect-url-to-store-new-token"
    }
  });

  client.users.list(function (err, users) {
    //
    // List all users for this Asana account.
    //
    console.dir(users);
  });