WebClient and sending PING

[Paul Antinori]

Is there a API to send PING using the WebClient API?  I am interested in setting up a interval processor to send PING and handle PONG using the WebClient.  Thanks.

[Thomas SEGISMONT]

Can you explain what you mean with sending PING over HTTP?

Le lun. 8 févr. 2021 à 20:27, Paul Antinori <pant...@gmail.com> a écrit :

Is there a API to send PING using the WebClient API?  I am interested in setting up a interval processor to send PING and handle PONG using the WebClient.  Thanks.

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[Paul Antinori]

We are trying to send the PING on an interval with a worker thread as in the HttpConnection class ping method.  This is a liveliness check and we would tear down the connection if the PING is rejected or timed out.

This is on top of the existing idle timeout fiunctionality on the web client connection.  The question is about how to use the WebClient API to get handle on the HttpConnection.  Thanks for assistance.

Paul

[Thomas SEGISMONT]

It's not possible with the WebClient, I think.

What you could do is creating the WebClient by providing an HttpClient that has a connection handler set. When the handler is called, you can schedule checks for the given connection.

Something like this:

HttpClient httpClient = vertx.createHttpClient(httpClientOptions).connectionHandler(connection-> {

  timerId = vertx.setPeriodic(period, l-> checkConnection(connection));

});

WebClient webClient = WebClient.wrap(httpClient, webClientOptions);

Don't forget to cancel the timer when the connection is closed (with closeHandler)

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[Paul Antinori]

Thanks that helps alot, I was not aware about the periodic API on vertx and the wrap API,  and will try it as you suggested.  

[Julien Viet]

good idea!

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