It is possible to send requests to various servers in parallel and to wait for all the responses simultaneously.

This procedure is useful if several requests have been assigned to different servers with widely differing response times. By parallelizing requests, you can significantly improve performance.

After executing requests with different HTTP client objects, you can wait for the objects to respond with the method LISTEN. This method always provides the client object that has just received its response. You can fetch the response with the method RECEIVE.