curl -H "Accept: application/json" -H "Content-type: application/json" -X POST -d ' {"username": "xdocker", "password":"xdocker"}'  http://engine.xdocker.org/register
{
  "message": "Successfully registered", 
  "status": "OK"
}

curl -H "Accept: application/json" -H "Conent-type: application/json" -X POST -d ' {"username": "xdocker", "password":"xdocker"}'  http://engine.xdocker.org/authenticate
{
  "status": "OK", 
  "token": "WyJYZXJ2bW9uIiwiODM1MGJiZjA0NDMxNzI2MDRkYTcwYzE1Yjc3ZWMwZWYiXQ.BwKC7w.PyM6S6CbykVvxiCN19y98_JuphU"
}