Fix a problem with host.json being ignored (#14)

* #10 Remove telemetry client.  
* Remove unnecessary dependencies.  
* Upgrade `Microsoft.Azure.Functions.Extensions` to latest version.  
* Upgrade `Autofac.Extensions.DependencyInjection` to latest version.  
* Add `nuget` publish key

Author: junalmeida

.github/workflows/main.yml

@@ -72,6 +72,8 @@ jobs:
 
       - name: Publish Package
         id: "publish"
+        env:
+          NUGET_KEY: ${{ secrets.NUGET_KEY }} # Environment token
         run: |
           for f in $(find ./ -name '*.nupkg'); do 
             echo "Pushing $f...";

Autofac.Extensions.DependencyInjection.AzureFunctions/AppSettingsExtensions.cs

@@ -4,7 +4,6 @@
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using System;
 using System.IO;
-using System.Linq;
 using System.Reflection;
 
 namespace Autofac.Extensions.DependencyInjection.AzureFunctions
@@ -51,10 +50,13 @@ public static IFunctionsHostBuilder UseAppSettings(this IFunctionsHostBuilder ho
         {
             var configurationBuilder = new ConfigurationBuilder() as IConfigurationBuilder;
 
-            var descriptor = hostBuilder.Services.FirstOrDefault(d => d.ServiceType == typeof(IConfiguration));
-            if (descriptor?.ImplementationInstance is IConfiguration configRoot)
+            using (var temporaryServiceProvider = hostBuilder.Services.BuildServiceProvider())
             {
-                configurationBuilder.AddConfiguration(configRoot);
+                var configRoot = temporaryServiceProvider.GetService<IConfiguration>();
+                if (configRoot != null)
+                {
+                    configurationBuilder.AddConfiguration(configRoot);
+                }
             }
 
             configurationAction?.Invoke(configurationBuilder);

SampleAutofacFunction/host.json

@@ -4,7 +4,7 @@
         "applicationInsights": {
             "samplingExcludedTypes": "Request",
             "samplingSettings": {
-                "isEnabled": true
+                "isEnabled": false
             }
         }
     },