shelf_azure_application_insights 0.0.2

A Shelf middleware to send request data to Azure Application Insights.

A Shelf middleware that sends request data to Azure Application Insights.

Usage

import 'package:shelf/shelf.dart';
import 'package:shelf/shelf_io.dart' as shelf_io;
import 'package:shelf_azure_application_insights/shelf_azure_application_insights.dart';

void main() async {
  var handler = const Pipeline()
      .addMiddleware(azureApplicationInsightsMiddleware(
          connectionString: '<APPLICATION_INSIGHTS_CONNECTION_STRING>'))
      .addHandler(_echoRequest);

  var server = await shelf_io.serve(handler, 'localhost', 8080);

  // Enable content compression
  server.autoCompress = true;

  print('Serving at http://${server.address.host}:${server.port}');
}

Response _echoRequest(Request request) =>
    Response.ok('Request for "${request.url}"');

Additional information

The middleware will auto-configure itself if deployed on Azure and a connection to Application Insights is setup. Auto-configuration happens by reading the environment variable APPLICATIONINSIGHTS_CONNECTION_STRING.

Alternatively either a connection or an existing instance of TelemetryClient can be supplied.

If no parameters are supplied and the environment variable doesn't exist, the middleware will not submit any logs (but also not produce any errors).