To override the Content-type in your clients HTTP Accept Header, append  the .json suffix or  ?format=json
To embed the response in a jsonp callback, append ?callback=myCallback
 
		
        
        HTTP + JSON
         The following are sample HTTP requests and responses. 
            The placeholders shown need to be replaced with actual values.
POST /json/reply/Valuations HTTP/1.1 
Host: api.firstlook.biz 
Content-Type: application/json
Content-Length: length
{"BookValuationRequests":null,"Ver":"String","Dealer":0,"MemberId":0,"RequestSource":"String"}
 
HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: length
{"bookValuations":[{"returnId":"String","checkSum":"String","valuationData":null}]}