Debugc logs a debugLog level message, including context information that is stored in the first parameter.

Debugf logs a debugLog level message.

Errorc logs an error level message, including context information that is stored in the first parameter.

Errorf logs an error level message.

Infoc logs an infoLog level message, including context information that is stored in the first parameter.

Infof logs an infoLog level message.

NewJSONFileLogger - Create a new logger with a "file" filter configured to send JSON-formatted log messages at or above lvl to a file with the specified filename.

WithRequestId adds a request id to the specified context.

WithUserId adds a user id to the specified context.