unix> curl -X PUT --data @- --dump - http://localhost:8529/_api/document/products5/30618202
{}

HTTP/1.1 202 Accepted
content-type: application/json; charset=utf-8
etag: "31208026"
location: /_api/document/products5/30618202

{ 
  "error" : false, 
  "_id" : "products5/30618202", 
  "_rev" : "31208026", 
  "_key" : "30618202" 
}