Why am I not getting Trace logging on Azure App Server

Question

Hi all; I am using the same log settings on my dev system and on Azure. Both use appsettings.json. I have no Logger settings in appsettings.Development.json or secrets.json on my dev system. I have none in the Environment Variables on Azure. My logs on my dev system show LogTrace() (where specified). But on Azure it does not. It has DEBUG, but not TRACE. Is there some override I need to set in Azure to allow Trace logging? This is not for the app service logs in Azure, it is for an ILoggerProvider I have written myself. thanks - dave

Answer 1

Hi @David Thielen
Glad to hear you were able to resolve your issue. I know you mentioned having something set somewhere in the log levels that you couldn't find. I've personally been down that road before.On App Service, you can elect what types of logs to show, see https://learn.microsoft.com/en-us/azure/app-service/troubleshoot-diagnostic-logs. When you use appsettings.json, those settings supersede what's in configured in the portal but since you didn't have any such configuration files, App Service would've defaulted to App Service Logs settings. When it comes to logs not appearing as expected, the first place to check would be these settings.