var launch = require('launchpad');
launch.<type>(configuration, function(error, launcher) {
  launcher.browsers(function(error, browsers) {
    // -> List of available browsers with version
  });

  launcher(url, configuration, function(error, instance) {
    instance // -> A browser instance
    instance.id // -> unique instance id
    instance.stop(callback) // -> Stop the instance
    instance.status(callback) // -> Get status information about the instance
  });

  launcher.<browsername>(url, function(error, instance) {
    // Same as above
  });
});

// Launch a local browser
launch.local(function(err, local) {
  local.browsers(function(error, browsers) {
    // -> List of all browsers found locally with version
  });
  
  local.firefox('http://url', function(err, instance) {
    // An instance is an event emitter
    instance.on('stop', function() {
      console.log('Terminated local firefox');
    });
  });
});

launch.browserstack({
    username : 'user',
    password : 'password'
  },
  function(err, browserstack) {
    browserstack.browsers(function(error, browsers) {
      // -> List of all Browserstack browsers
    });
    
    browserstack.ie('http://url', function(err, instance) {
      // Shut the instance down after 5 seconds
      setTimeout(function() {
        instance.stop(function (err) {
          if(err) {
            console.log(err);
          }
          console.log('Browser instance has stopped');
        });
      }, 5000);
  });
});