使用 NLog 登录到 Microsoft Teams 中的频道

Question

Objective

Log the errors to Microsoft Teams with NLog from a console program.

Issue

Was able to log to the console, but not to Teams

Code

Config:

<targets>
    <target xsi:type="Console" name="console"/>
    <target xsi:type="WebService"
         name="microsoft-teams"
         url="https://outlook.office.com/webhook/abcd"
         protocol='JsonPost' 
         encoding='UTF-8' 
         includeBOM='false' >
    </target>
</targets>
<rules>
    <logger name="*" minlevel="Info" writeTo="console" />
    <logger name='*' writeTo='microsoft-teams' />
</rules>

Logging code:

private static Logger logger = LogManager.GetCurrentClassLogger();
public static void Main(string[] args) {

    logger.Error("{'text':'test'}");
    logger.Fatal("Sample fatal error message");

}

The console target displayed the errors very well. But the Teams channel didn't have log, the nlog-internal.log showed

System.Net.WebException: The remote server returned an error: (400) Bad Request. at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)

Any insight would be greatly appreciated!

Answer 1

You need at least send some parameters, see example webserver target:

<target type='WebService'
        name='ws'
        url='http://localhost:1234/logme'
        protocol='HttpPost'
        encoding='UTF-8'   >
    <parameter name='param1' type='System.String' layout='${message}'/> 
    <parameter name='param2' type='System.String' layout='${level}'/>
</target>

If this still isn't working, I would recommend checking the call with Fiddler

Answer 2

I know it is a little bit late, but you can try the NLog extension I created. https://github.com/jedipi/NLog.Targets.MicrosoftTeams