We normally use cURL requests to easily encapsulate and share HTTP requests with teammates. To perform websocket requests from the CLI, we can make use of websocat, a CLI client for performing websocket requests.
Creating a websocket subscription and sending payload
# Create the connection
websocat -t -E tcp-l:127.0.0.1:6543 reuse-raw:ws://your.websocket.com --max-messages-rev 2&
WS_PID=$!
# Send payload, and echo the response
echo '{"id":"1","type": "stop"}' | nc ${LOCALHOST} ${LOCALPORT}
# Close the connection
kill ${WS_PID}
Command line result
Result of the command would look something like this:
The full source code for this is available on Gist GitHub.
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