HTTP/1.1 200 OK
x-arango-errors: 1
content-type: multipart/form-data; boundary=XXXsubpartXXX
content-length: 711

--XXXsubpartXXX
Content-Type: application/x-arango-batchpart

HTTP/1.1 404 Not Found
content-type: application/json; charset=utf-8
content-length: 111

{"error":true,"code":404,"errorNum":1203,"errorMessage":"collection \/_api\/collection\/nonexisting not found"}
--XXXsubpartXXX
Content-Type: application/x-arango-batchpart

HTTP/1.1 202 Accepted
content-type: application/json; charset=utf-8
etag: "9841979"
content-length: 53

{"error":false,"_id":"101059/9841979","_rev":"9841979"}
--XXXsubpartXXX--