Transfer information to logger

Working with Data Drivers
1

Golang mongo driver uses an interface LogSink which has the following structure:


type LogSink interface {
	// Info logs a non-error message with the given key/value pairs. The
	// level argument is provided for optional logging.
	Info(level int, msg string, keysAndValues ...interface{})

	// Error logs an error, with the given message and key/value pairs.
	Error(err error, msg string, keysAndValues ...interface{})
}

This interface does not tells anything about context.Context. How can we transfer some information to the logger as there is no context involved ? My use case: I want to send query logs to some external service along with some user information that will be available in http or grpc request.

2

There’s currently no simple way to access Context values via the LogSink interface. I created GODRIVER-3265 to investigate ways to support passing user-defined values through the logger interface.

Depending on what information you’re trying to log, you may be able to use a CommandMonitor instead, which passes the operation Context to the callback.