IServiceCollectionExtensions.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;
using Atlassian.Jira;
using Microsoft.ApplicationInsights.Extensibility;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Features;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;

namespace YourProject
{
	public static class IServiceCollectionExtensions
	{
		public static IServiceCollection AddSaEnterpriseAzDPullRequestsWeb(
			this IServiceCollection services,
			Action<AzDPullRequestOptions> configure = null
		)
		{
			services.TryAddTransient<JiraOAuthDelegatingHandler>();
			services.TryAddScoped<IAtlassianOAuthenticator, AtlassianOAuthenticator>();
			services.AddHttpClient();
			services.TryAddTransient<HttpClient>(s =>
			{
				var factory = s.GetService<IHttpClientFactory>();
				return factory.CreateClient();
			});
			services.AddHttpClient<IJiraDevInfoHttpClient, JiraDevInfoHttpClient>()
				.AddHttpMessageHandler<JiraOAuthDelegatingHandler>();
			
			return services;
		}
	}
}