Rollbar

FilterConfig.cs

filters.Add(new RollbarMvcExceptionFilter());

Ninject.cs

kernel.BindFilter(FilterScope.Global, 10).InSingletonScope();

RollbarMvcExceptionFilter.cs

public class RollbarMvcExceptionFilter : IExceptionFilter
{
    RollbarClient client = new RollbarClient();

    public void OnException(ExceptionContext filterContext)
    {
        if (filterContext.ExceptionHandled)
            return;
    
        client.SendException(filterContext.Exception);
    }
}

RollbarWebApiExceptionFilter.cs

public class RollbarWebApiExceptionFilter : IExceptionFilter
{
    RollbarClient client = new RollbarClient();
    
    public bool AllowMultiple
    {
        get { return false; }
    }
    
    public async Task ExecuteExceptionFilterAsync(HttpActionExecutedContext context, CancellationToken cancelToken)
    {
        await Task.Factory.StartNew(() => client.SendException(context.Exception), cancelToken);
    }
}

Web.config

<configuration>
  <appSettings>
    <add key="Rollbar.AccessToken" value="YOUR_TOKEN_HERE"/>
    <add key="Rollbar.Environment" value="developement"/>
  </appSettings>
</configuration>

Web.Release.config

<configuration>
  <appSettings>
    <add key="Rollbar.Environment" value="production" xdt:Transform="SetAttributes" xdt:Locator="Match(key)"/>
  </appSettings>
</configuration>

WebApiConfig.cs

config.Filters.Add(new RollbarWebApiExceptionFilter());