EntrustSettle/EntrustSettle.Extensions/ServiceExtensions/HttpClientSetup.cs

using EntrustSettle.Common;
using EntrustSettle.Common.Http.HttpPolly;
using EntrustSettle.Model;
using Microsoft.Extensions.DependencyInjection;
using RestSharp;
using System;

namespace EntrustSettle.Extensions
{
    /// <summary>
    /// 
    /// </summary>
    public static class HttpClientSetup
    {
        public static void AddHttpClientSetup(this IServiceCollection services)
        {
            if (services == null) throw new ArgumentNullException(nameof(services));

            // Http请求方式1：使用RestSharp
            services.AddKeyedSingleton<IRestClient>(HttpEnum.Hyd, new RestClient(AppSettings.app("Apis", "Hyd", "BaseUrl")));

            // Http请求方式2：使用HttpClientFactory
            //services.AddHttpClient(HttpEnum.Hyd.ToString(), c =>
            //{
            //    c.BaseAddress = new Uri(AppSettings.app("Apis", "Hyd", "BaseUrl"));
            //});
            //services.AddSingleton<IHttpPollyHelper, HttpPollyHelper>();

            //#region 方式2可配合Polly策略
            //var retryPolicy = HttpPolicyExtensions
            //.HandleTransientHttpError()
            //.Or<TimeoutRejectedException>() // 若超时则抛出此异常
            //.WaitAndRetryAsync(new[]
            //{
            //    TimeSpan.FromSeconds(1),
            //    TimeSpan.FromSeconds(5),
            //    TimeSpan.FromSeconds(10)
            //});

            //// 为每个重试定义超时策略
            //var timeoutPolicy = Policy.TimeoutAsync<HttpResponseMessage>(10);

            //services.AddHttpClient(HttpEnum.Common.ToString(), c =>
            //{
            //    c.DefaultRequestHeaders.Add("Accept", "application/json");
            //})
            //.AddPolicyHandler(retryPolicy)
            //// 将超时策略放在重试策略之内，每次重试会应用此超时策略
            //.AddPolicyHandler(timeoutPolicy);

            //services.AddHttpClient(HttpEnum.LocalHost.ToString(), c =>
            //{
            //    c.BaseAddress = new Uri("http://www.localhost.com");
            //    c.DefaultRequestHeaders.Add("Accept", "application/json");
            //})
            //.AddPolicyHandler(retryPolicy)
            //// 将超时策略放在重试策略之内，每次重试会应用此超时策略
            //.AddPolicyHandler(timeoutPolicy);

            //#endregion
        }
    }
}