http://localhost/WCF_Synthese/ServiceWCF_Synthese.svc/Observation
Testing in fiddler :
Host: localhost Connection: keep-alive Content-Type: application/json User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Content-Length: 81
{"observation":{"DateObservation":"2014-01-01","IDOiseau":1,"IDUsager":1,"Id":0}}