Logging - WilStead/VueCoreFramework GitHub Wiki
The project uses NLog for server-side logging, and configured to write to the database by default. See nlog.config (docs). The LogDir app setting (see appsettings.json) controls where the internal logs will be stored.
Services.LogEvent.cs contains a number of event codes which are used to identify different events in the logs.
The project uses JSNLog for client-side logging, and configuration options can be found in Startup.cs.