Java sample code to connect to WSS (RTDS)

hgardon

Hello,

We are updating our application to be able to support WebSocket secured connection with RTDS.

We have several questions :

First, we udpated our ADS to be compatible with secured connection updating the below property :

*ads*distribution_ws_sink*connectionType : 1

Then we restarted the ads.

Is it all ?

Do we need to update/change other properties ?

What about these ones ?

*ads*distribution_ws_sink*serverCert :

*ads*distribution_ws_sink*serverPrivateKey :

Secondly, how can we test the connection ?

With wsapi_tryitnow, we can see that the connection to non secured WebSocket API is done through :

var WS_URL = 'ws://' + hostName + ':' + portNumber + '/WebSocket';

_websocket = new WebSocket(WS_URL, "tr_json2");

Is it the same with WSS ?

Do we need to change WS_URL from 'ws://' to 'wss://' ?

Do we need to change anything else ?

Thanks for the help.

Regards,

Jirapongse

@hgardon

That www.test.com is a hostname for testing purposes.

You need to contact your internal team who generates those certificate and private key files to verify what the problem is.

To connect to an encrypted server, you need to install the certificate file on the client's machine and the application needs to use that certificate file to connect to the encrypted server.

For example, on Windows machines, you can use the openssl tool to convert the cert.pem to the cert.crt file.

openssl x509 -outform der -in cert.pem -out cert.crt

Then, install the cert.crt file on Windows machines.

I checked and found that the wsapi_tryitnow doesn't support the wss:// connections. Therefore, you need to use other tools instead, such as Postman or Python.