The Tailchat agora integration is an audio and video call function that relies on the agora service, so it needs to be registered on the agora platform before use.
In project configuration we can get `appid` and `app cert`. These two are the environment variables `AGORA_APP_ID` and `AGORA_APP_CERT` that we will use later
At present, the server-side plugin of the Agora plugin has been installed by default, and you do not need to do anything. However, environment variables need to be configured for use.
The receiving server URL is generally: `https://<YOUR SERVER DOMAIN>/api/plugin:com.msgbyte.agora/webhook`, where `<YOUR SERVER DOMAIN>` is replaced with your `Tailchat` domain name.
The service of Agora will check the connectivity of the server, so it is necessary to configure the environment variables and start the service before performing this step.
In addition, the Agora needs to configure `https` and `webrtc` service also depends on `https`, so you need to ensure that the server gateway supports the `https` protocol