EndpointJoinSessionForm

{
    "sessionInfo": {
        "topic": "string",
        "code": "string",
        "password": "string"
    },
    "mediaOpts": {
        "isVideoMute": true,
        "isAudioMute": true
    },
    "endpointInfo": {
        "nickname": "string",
        "headImage": "string",
        "deviceSn": "UUID.randomUUID().toString()",
        "endpointId": "string",
        "extState": {},
        "deviceId": "string"
    },
    "context": {
        "callId": "string"
    },
    "returnEndpointSize": 20
}