Set Http client basic authentication header for typed instance.

Microsoft.DependencyInjection.SolrNet.Tests/MicrosoftDependencyFixture.cs

@@ -22,6 +22,7 @@
 using SolrNet.Impl;
 using System.Collections.Generic;
 using System.Linq;
+using SolrNet.Microsoft.DependencyInjection;
 
 namespace Microsoft.DependencyInjection.SolrNet.Tests
 {
@@ -163,6 +164,26 @@ public void SetBasicAuthenticationHeader()
             Assert.Equal(credentialsBase64, connection.HttpClient.DefaultRequestHeaders.Authorization.Parameter);
         }
 
+        [Fact]
+        public void SetBasicAuthenticationHeaderForTypedInstance()
+        {
+            var sc = new ServiceCollection();
+
+            //my credentials
+            var credentials = System.Text.Encoding.ASCII.GetBytes("myUsername:myPassword");
+            //in base64
+            var credentialsBase64 = Convert.ToBase64String(credentials);
+            //use the options to set the Authorization header.
+            sc.AddSolrNet<string>("http://localhost:8983/solr", options => { options.HttpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", credentialsBase64); });
+
+            //test
+            var provider = sc.BuildServiceProvider();
+            var injectionConnection = provider.GetRequiredService<ISolrInjectedConnection<string>>() as BasicInjectionConnection<string>;
+            var connection = injectionConnection.Connection as AutoSolrConnection;
+            Assert.NotNull(connection.HttpClient.DefaultRequestHeaders.Authorization);
+            Assert.Equal(credentialsBase64, connection.HttpClient.DefaultRequestHeaders.Authorization.Parameter);
+        }
+
         public class Entity { }
     }
 }

Microsoft.DependencyInjection.SolrNet/ServiceCollectionExtensions.cs

@@ -89,7 +89,12 @@ public static IServiceCollection AddSolrNet<TModel>(this IServiceCollection serv
             }
 
             services = BuildSolrNet(services, url, setupAction);
-            var connection = new BasicInjectionConnection<TModel>(new AutoSolrConnection(url));
+            //Set custom http client setting given by user at intiliation for specific solr core
+            var autoSolrConnection = new AutoSolrConnection(url);
+            var solrOption = new SolrNetOptions(autoSolrConnection.HttpClient);
+            setupAction(solrOption);
+            var connection = new BasicInjectionConnection<TModel>(autoSolrConnection);
+
             services.AddTransient(typeof(ISolrInjectedConnection<TModel>), (service) => connection);
             return services;
         }