Reparent subnets while deleting network container

Hi all,

I am currently facing an issue with running WAPI call with below syntax. My lab is NIOS 8.6.2 with IPAM (Network Insight license is not installed).

curl -k -u admin:infoblox -H 'content-type: application/json' -X POST " https://10.193.35.186/wapi/v2.12/networkcontainer/ZG5zLm5ldHdvcmtfY29udGFpbmVyJDEuMS4xLjAvMjcvMA:1.1.1.0/27/default?remove_subnets=false&_return_as_object=1"

After running the command, result below returned:

{ "Error": "AdmConProtoError: field for create missing: network",
"code": "Client.Ibap.Proto",
"text": "field for create missing: network"
}

What am I missing here?

Please kindly shed some light here.

Regards,

Tommy