Discord.Net/docs/guides/logging.md

Using the Logger

Discord.Net will automatically output log messages through the @Discord.DiscordSocketClient#Log event.

Usage

To handle Log Messages through Discord.Net's Logger, hook into the @Discord.DiscordSocketClient#Log event.

The @Discord.LogMessage object has a custom ToString method attached to it, when outputting log messages, it is reccomended you use this, instead of building your own output message.

[!code-csharp]