shell> curl -X PUT --header 'If-Match: "_XUJy9g6--_"' --header 'accept: application/json' --data-binary @- --dump - http://localhost:8529/_api/document/products/103582 <<EOF {"other":"content"} EOF HTTP/1.1 undefined content-type: application/json; charset=utf-8 etag: "_XUJy9g2--B" x-content-type-options: nosniff { "error" : true, "code" : 412, "errorNum" : 1200, "errorMessage" : "precondition failed", "_id" : "products/103582", "_key" : "103582", "_rev" : "_XUJy9g2--B" }