unix> curl -X PUT --data @- --dump - http://localhost:8529/_api/document/products7/17642074
{}

HTTP/1.1 202 Accepted
content-type: application/json; charset=utf-8
etag: "18100826"
location: /_api/document/products7/17642074

{ 
  "error" : false, 
  "_id" : "products7/17642074", 
  "_rev" : "18100826", 
  "_key" : "17642074" 
}