Client is not registering on Server for Leshan version "2.0.0-M14" about leshan

[mhatrepratik11]

I was able to solve client registration issue with below code:

final LeshanClient client = leshanClientBuilder
			.setEndpointsProviders(new CaliforniumClientEndpointsProvider.Builder().build())
			.build();

Setting clientAddress to CaliforniumClientEndpointsProvider was my mistake: "endpointsBuilder.setClientAddress(InetAddress.getLocalHost());"
With this change the client is working fine now.

So now only issue persist is of Leshan WebServer UI is not working at http://localhost:8080
I have added below code for WebServer.

// Starting jetty webserver for UI at http://localhost:8080
InetSocketAddress jettyAddr = new InetSocketAddress("127.0.0.1", 8080);
Server jettyServer = new Server(jettyAddr);
jettyServer.start();

Any suggestions / help would be great.

Thank you for your attention!

[sbernard31]

I looked at your server code and it should rather looks like :

        // create provider
        final CaliforniumServerEndpointsProvider californiumServerEndpointsProvider = new CaliforniumServerEndpointsProvider.Builder(
                new CoapServerProtocolProvider()) //
                        .setConfiguration(config -> config.set(CoapConfig.PROTOCOL_STAGE_THREAD_COUNT, 4))
                        .addEndpoint("coap://localhost:5683") //
                        // OR
                        // .addEndpoint(new InetSocketAddress("localhost", 5683), Protocol.COAP) //
                        .build();

        // create server
        LeshanServerBuilder builder = new LeshanServerBuilder();
        // builder.setRegistrationIdProvider(new RandomStringRegistrationIdProvider()); // not needed used by default
        builder.setEndpointsProviders(californiumServerEndpointsProvider);
        LeshanServer server = builder.build();

        // start it
        server.start();

        // listen for registration
        server.getRegistrationService().addListener(new RegistrationListener() {
            @Override
            public void registered(Registration registration, Registration previousReg,
                    Collection<Observation> previousObservations) {
                System.out.println("Registered client: " + registration.getEndpoint());
            }
            // Other override methods
        });

     // All the jetty code is useless OR it missed your own code to add `Servlet` to jetty.

So now only issue persist is of Leshan WebServer UI is not working at http://localhost:8080/

Leshan is a library, there is no web server UI.
But Leshan provide a standalone demo which contains a web UI.

See FAQ to better understand : https://github.com/eclipse-leshan/leshan/wiki/F.A.Q.#what-is-leshan-and-how-should-i-use-it-
Maybe I should change again the README + FAQ, as it seems not clear for everybody 🤔

[mhatrepratik11]

Thank you very much @sbernard31. Now it's clear to me and thanks for the code. I will change my code accordingly. Satisfied with the answer and good to close this issue. Thanks again...

[sbernard31]

You're welcome.