## POST application/x-www-form-urlencoded

`application/x-www-form-urlencoded` is the default:

    curl -d "param1=value1&param2=value2" -X POST http://localhost:3000/data

explicit:

    curl -d "param1=value1&param2=value2" -H "Content-Type: application/x-www-form-urlencoded" -X POST http://localhost:3000/data

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

## POST application/json

    curl -d '{"key1":"value1", "key2":"value2"}' -H "Content-Type: application/json" -X POST http://localhost:3000/data
    
with a data file
 
    curl -d "@data.json" -X POST http://localhost:3000/data