shell> curl -X DELETE --header 'If-Match: "10302"' --dump - http://localhost:8529/_api/document/products/10298 HTTP/1.1 412 Precondition Failed content-type: application/json; charset=utf-8 etag: "10298" { "error" : true, "code" : 412, "errorNum" : 1200, "errorMessage" : "precondition failed", "_id" : "products/10298", "_key" : "10298", "_rev" : "10298" }