You must set parameters and obtain return values based on the following specifications when your application server calls operations of the authorization server. Otherwise, the call may fail. This topic describes the application server-related operations provided by ApsaraMQ for MQTT.
| OpenAPI | Description |
|---|---|
| ApplyToken | Call ApplyToken to apply for a token. |
| QueryToken | Call QueryToken to verify the validity of a token. |
| RevokeToken | Call RevokeToken to revoke a token. |