HttpContext and TelemetryInitializer

Question

I want to attach the user\'s \"client_id\" claim as a property to every request sent to Application Insights.

From what I\'ve read, I should be implementing IT

Answer 1

I would suggest to inject an HttpContextAccessor instance in the ClaimTelemetryInitializer class's constructor, and then you could use it to extract values from the HttpContext. Or, even better, create a base class for your TelemetryInitializer, and use it's constructor to inject the HttpContextAccessor instance.

For example:

    protected ClaimTelemetryInitializer(IHttpContextAccessor httpContextAccessor)
    {
        this.httpContextAccessor = httpContextAccessor;
    }

    public void Initialize(ITelemetry telemetry)
    {
        var context = this.httpContextAccessor.HttpContext;
        if (context == null)
        {
            return;
        }

        var claim = context.User.Claims.SingleOrDefault(x => x.Type.Equals(claimName, StringComparison.InvariantCultureIgnoreCase));
        //Do logic here...
    }