> curl --data '@'- -X POST --dump - http://localhost:8529/_document/9496015
{ Hallo }

HTTP/1.1 400 Bad Request
content-type: application/json
connection: Keep-Alive
server: triagens GmbH High-Performance HTTP Server
content-length: 71

{ "error" : true, "message" : "expecting attribute name", "code" : 400}