send a post request with curl

https://github.com/thephpleague/oauth2-server/tree/master/examples

https://gist.github.com/subfuzion/08c5d85437d5d4f00e58

Since the default is application/x-www-form-urlencoded, the shortest would be
curl -d "param1=value1&param2=value2" -X POST http://localhost:3000/data

or with a data file,
curl -d "@data.txt" -X POST http://localhost:3000/data