···1616After running the server, you can subscribe using =curl= with the following command
17171818#+begin_src shell
1919-curl localhost:8000/subscribe
1919+curl "localhost:8000/subscribe?topic=notification"
2020#+end_src
21212222Later, you can simply publish a message in the =/publish= endpoint with the following command
23232424#+begin_src shell
2525-curl localhsot:8000/publish -d '{"name": "Tulkdan", "value": 2000 }'
2525+curl "localhsot:8000/publish?topic=notification" -d '{"name": "Tulkdan", "value": 2000 }'
2626#+end_src