Installation

These packages contain dependencies for both ASP.NET Framework and ASP.NET Core. However, versions below 2.8.60318.667 of the NuGet Package Manager installed in Visual Studio do not support this.

To check your Nuget version and upgrade if needed:

1. In Visual Studio, openTools | Extensions and Updates...;
2. ClickUpdates(in left hand menu);
3. If an update of NuGet Package Manager is available, clickUpdate.

This package assumes that you have created a global logger. For example:

var log = new LoggerConfiguration()
    .WriteTo.File("log.txt")
    .CreateLogger();


    // Set global logger, so JSNLog can access it.
    Log.Logger = log;

A good place for this would be theApplication_Start handler in yourGlobal.asax.cs.

A working demo is in project JSNLogDemo_Log4Net_OWIN

1. Add JSNLog to your OWIN pipeline in your Startup class:

   using JSNLog;
   
   
   public class Startup
           {
               public void Configuration(IAppBuilder app)
               {
                   ...
   
           // Short circuits log requests from the jsnlog.js client library and
           // passes the log data on to the server side logging package.
                       app.UseJSNLog();
           ...
       }
       }

2. Update your web.config - Remove the definitions that make JSNLog work as an HTTP Handler, and add a definition that sends all log requests to the OWIN handler:

   <configuration>
       <system.web>
       <httpHandlers>
           ...
           <!-- Remove this line -->
                       <add verb = "*" path= "*.logger" type= "JSNLog.LoggerHandler, JSNLog" / >
       </httpHandlers>
       </system.web>
       <system.webServer>
       <handlers>
           ...
           <!-- Remove these lines -->
                       <add name = "LoggerHandler" verb= "*" path= "*.logger" type= "JSNLog.LoggerHandler, JSNLog" resourceType= "Unspecified" preCondition= "integratedMode" / >
                       <add name = "LoggerHandler-Classic" path= "*.logger" verb= "*" modules= "IsapiModule" scriptProcessor= "%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType= "Unspecified" preCondition= "classicMode" / >
           <!--
           Add this line.
           If you configure JSNLog to send log request to a url that
           does NOT end in .logger (how), change the path attribute below.
           -->
                       <add name = "Owin" verb="" path="*.logger"
                type="Microsoft.Owin.Host.SystemWeb.OwinHttpHandler, Microsoft.Owin.Host.SystemWeb"/>
       </handlers>
       </system.webServer>
   </configuration>

3. Add package - If you haven't already done so, add the Microsoft.Owin.Host.SystemWeb package:

   Install-Package Microsoft.Owin.Host.SystemWeb