An API echo app based on socket.io

Live DEMO:

1. Open a tab : https://api-echo.herokuapp.com/
2. Open a second tab : https://api-echo.herokuapp.com/echo/myapi/request/test?withpartams=true
3. Refresh the second tab and look at the first tab.

For a more complex demo, try postman and send different requests to https://api-echo.herokuapp.com/echo/...