How to enable tracing in Web API?

Tracing can be enabled using below line:
public static void Register(HttpConfiguration config)
{
config.EnableSystemDiagnosticsTracing();
}

But if you want to write your own tracer, you can inherit ITraceWriter and provide your implementation.

in “Register” method of WebAPIConfig.cs place the code file.config.EnableSystemDiagnosticsTracing();