You can find all the info about the API in the documentation.
{
"number": 1,
"name": "my port",
"tags": "dorm-room limited",
"enabled": true,
"type": "access",
"vlan": 10,
"voiceVlan": 20,
"poeEnabled": true,
"isolationEnabled": false,
"rstpEnabled": true,
"stpGuard": "disabled",
"accessPolicyNumber": "asdf1234",
"linkNegotiation": "Auto negotiate"
}