An NLog target using the RollbarSharp library for sending notifications to Rollbar.

You'll need to edit your configuration file that holds your NLog settings. For ASP.NET applications this will likely be web.config. Three additions need to be made to extensions, targets, and rules.

<nlog>
    <extensions>
        <add assembly="NLog.RollbarSharp" />
    </extensions>
    <targets>
        <target xsi:type="RollbarSharp" name="rollbar" />
    </targets>
    <rules>
        <logger name="*" minlevel="Warn" writeTo="rollbar" />
    </rules>
</nlog>

You'll need to set your Rollbar access token and environment. This can be done inline with the NLog configuration or in your appSettings.

You have to set the access token. You can optionally set:

• Endpoint (to override the Rollbar API URL)
• Environment (e.g. development, production)
• Platform
• Language
• Framework
• Title

If you set the configuration here then you'll be able to use the same configuration for the standalone RollbarSharp client if you choose to do so.

<appSettings>
  <add key="Rollbar.AccessToken" value="6703358e9f54081e59bb0d65ee066363"/>
  <add key="Rollbar.Environment" value="development"/>
</appSettings>

You can configure NLog.RollbarSharp inline like so.

<targets>
  <target xsi:type="RollbarSharp" name="rollbar" accessToken="6703358e9f54081e59bb0d65ee066363" environment="development" />
</target>