A simple server side code for my blog on idempotency. https://devpiku.com/post-requests-playing-among-us-try-idempotency Its written in NodeJS and uses redis as a state store for the requests.

You would need docker to make things simple. Just pull the code and run docker compose up.

If you dont use docker install redis and node. Then in the project file run npm install blah, blah, blah. Just install docker and run the command written above.