How to auto log every request in .NET Core WebAPI?

ActionFilter will work until you need to log only requests processed by MVC middleware (as controller actions). If you need logging for all incoming requests, then you need to use a middleware approach. Good visual explanation: Note that middleware order is important, and if your logging should be done at the start of pipeline execution, … Read more

Is it possible to wildcard logger names in log4net configuration?

You can just specify part of a namespace so it will apply to all messages within that namespace (including nested). Here is the example I often use: <root> <level value=”FATAL” /> <appender-ref ref=”RollingFile” /> </root> <logger name=”MyCompany.Web” > <level value=”WARN” /> <appender-ref ref=”WebErrors” /> </logger> <!– Will log all FATALs from NHibernate, including NHibernate.SQL and … Read more

Windows Event Viewer and log4net

log4net supports a EventLogAppender so, yes, you can do it. How? You can start by checking the log4net configuration examples for that appender. If you encounter any specific problem you can update your question with more details so people can help you better.

How do I create an asynchronous wrapper for log4net?

If you go to the log4net website, you can find some examples, at least one of which is an asynchronous Appender. http://logging.apache.org/log4net/release/example-apps.html Note that I have not used any of these examples, so I cannot vouch for them one way or the other. Here is a link to the actual asynchronous appender from the log4net … Read more

Log4Net: Logging in 2 byte languages (japanese, chinese etc.)

The log file encoding is specified by FileAppender.Encoding. It can be configured using the encoding configuration element. Example: <appender name=”FileAppender” type=”log4net.Appender.FileAppender”> <file value=”file.log” /> <encoding value=”utf-8″ /> … The value is the code page name. The corresponding Encoding is obtained using the System.Text.Encoding.GetEncoding(string) method. For a list of code pages, see the Encoding class documentation.

How do you configure and enable log4net for a stand-alone class library assembly?

Solution 1 A solution for the first set of constraints is to basically wrap the log4net.LogManager into your own custom LogManager class like Jacob, Jeroen, and McWafflestix have suggested (see code below). Unfortunately, the log4net.LogManager class is static and C# doesn’t support static inheritance, so you couldn’t simply inherit from it and override the GetLogger … Read more

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