B4J Question How create a simple b4j server and intercept data?

[Eme Fibonacci]

I bought a device that sends data to vendor server.

I can change the server address and the port.

So I could build my own server and deal with data.

My problem: I have no idea how this data is posted or what format. How can I create a b4j server and analyze what is being posted?

Many thanks.

 

[Erel]

As you don't know the protocol you should start with ServerSocket.

Open the port and use AsyncStreams to log the input. The next step is to determine the protocol.