You will need a minimum Streams version of 4.2 to use the streamsx.websocket toolkit. If you really want, you can make it to work on Streams 4.1. You can edit the streamsx.websocket/com.ibm.streamsx.websocket/info.xml file and change 18.104.22.168 to 22.214.171.124, save and rebuild that toolkit using the ant commands that you used. You can quickly try this and see if it will work for you.
If that doesn't work, please tell me. We can discuss how you can use the streamsx.inet toolkit to accomplish what you are trying to do. As I already said, streamsx.websocket toolkit's HttpPost operator will give you much better throughput compared to the operator available in the streamsx.inet toolkit.
In any case, we will get it working for you via one of those two toolkits.
All the very best.#OpenSourceOfferings#Streams#Support#SupportMigration