I would like to make POST request through a DoFn for a Apache Beam Pipeline running on Dataflow.
For that, I have created a client which instanciate an HttpClosableClient configured on a PoolingHttpClientConnectionManager.
However, I instanciate a client for each element that I process.
How could I setup a persistent client used by all my elements?
And is there other class for parallel and high-speed HTTP requests that I should use?