# Logging

Handy-Httpd uses the SLF4D (opens new window) library for logging. That means that you can easily handle its log messages using a provider of your choice, or just let SLF4D's default logging provider send log messages to stdout and stderr. By default SLF4D's root logging level is INFO. If you'd like more detail about how Handy-Httpd operates, you can set the root level to DEBUG or TRACE.

To quickly enable colored, verbose logging in case your application isn't behaving how you expect, insert this snippet at the very beginning of your D application's main function:

import slf4d;
import slf4d.default_provider;
auto provider = new DefaultProvider(true, Levels.TRACE);

This will configure the global SLF4D logging context to use the default provider, with colored output, and showing all log messages. You can use Levels.DEBUG if trace is too verbose for your needs.