octavia/api-ref/source/v2/examples/member-create-request.json

{
    "member": {
        "name": "web-server-1",
        "weight": "20",
        "admin_state_up": true,
        "subnet_id": "bbb35f84-35cc-4b2f-84c2-a6a29bba68aa",
        "address": "192.0.2.16",
        "protocol_port": "80",
        "monitor_port": 8080,
        "backup": false,
        "tags": ["test_tag"]
    }
}