Custom logger

It is possible to facilitate your own logger (like sending it to a central logging facility such as DataDog) by adding a small wrapper around it and passing it to the custom property of the logger option.

Simple - function form

const chat = new ChatClient({
	// ...
	logger: {
		custom: (level, message) => {
			// ... send to whatever ...
		}
	}
})

The level parameter is a member of the LogLevel enum which you should import from the @d-fischer/logger package to transform it back into a string rather than reversing the level manually with a switch or multiple if statements.

Advanced - object form

const chat = new ChatClient({
	// ...
	logger: {
		custom: {
			log: (level, message) => {
				// ... send to whatever ...
			},
			error: message => {
				// ... send to something else ...
			},
			// ... more level specific handling ...
		}
	}
})

In the object form, you have to supply a generic function named log which is similar to the function form above.

But additionally, you can implement different functions that act differently for specific log levels. The log messages covered by these methods will not go through the log function.

The names of the overridable level logger methods are: crit, error, warn, info, debug, trace. Please note that you don't have to override all of them - log messages without a specific override will go to the log function instead.