shell> curl -X POST --data-binary @- --dump - http://localhost:8529/_api/batch <<EOF
--SomeBoundaryValue
Content-Type: application/x-arango-batchpart

DELETE /_api/collection/notexisting1 HTTP/1.1

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

DELETE _api/collection/notexisting2 HTTP/1.1
--SomeBoundaryValue--

EOF

HTTP/1.1 200 OK
content-type: 
x-arango-errors: 2

"--SomeBoundaryValue\r\nContent-Type: application/x-arango-batchpart\r\n\r\nHTTP/1.1 404 Not Found\r\nServer: \r\nContent-Type: application/json; charset=utf-8\r\nConnection: \r\nContent-Length: 92\r\n\r\n{\"error\":true,\"code\":404,\"errorNum\":1203,\"errorMessage\":\"unknown collection 'notexisting1'\"}\r\n--SomeBoundaryValue\r\nContent-Type: application/x-arango-batchpart\r\n\r\nHTTP/1.1 404 Not Found\r\nServer: \r\nContent-Type: application/json; charset=utf-8\r\nConnection: \r\nContent-Length: 101\r\n\r\n{\"error\":true,\"code\":404,\"errorNum\":404,\"errorMessage\":\"unknown path '_api/collection/notexisting2'\"}\r\n--SomeBoundaryValue--"