ASP.NET Core Api網關Ocelot初探
本文轉載自微信公眾號「UP技術控」,作者conan5566。轉載本文請聯系UP技術控公眾號。
概述
Ocelot面向使用.NET運行微型服務/面向服務的體系結構的人員,這些體系結構需要在系統中具有統一的入口點。特別是我想與IdentityServer參考和承載令牌輕松集成。Ocelot是按特定順序排列的一堆中間件。Ocelot將HttpRequest對象操作到由其配置指定的狀態,直到到達請求構建器中間件,在該中間件中它創建一個HttpRequestMessage對象,該對象用于向下游服務發出請求。發出請求的中間件是Ocelot管道中的最后一件事。它不會調用下一個中間件。有一塊中間件可將HttpResponseMessage映射到HttpResponse對象,然后將其返回給客戶端。基本上,它具有許多其他功能。
代碼實現
1、新建api客戶端1
2、新建api 網關test
3、nuget安裝Ocelot
4、Program文件添加ConfigureAppConfiguration
- public class Program
- {
- public static void Main(string[] args)
- {
- CreateHostBuilder(args).Build().Run();
- }
- public static IHostBuilder CreateHostBuilder(string[] args) =>
- Host.CreateDefaultBuilder(args)
- .ConfigureAppConfiguration(conf =>
- {
- conf.AddJsonFile("ocelot.json", false, true);
- })
- .ConfigureWebHostDefaults(webBuilder =>
- {
- webBuilder.UseStartup<Startup>();
- });
- }
5、Startup文件配置
- services.AddOcelot(Configuration);
- app.UseOcelot().Wait();
6、網關項目下添加文件ocelot.json
- {
- "ReRoutes": [
- {
- "DownstreamPathTemplate": "/api/WeatherForecast/GetList",
- "DownstreamScheme": "http",
- "DownstreamHostAndPorts": [
- {
- "Host": "localhost",
- "Port": 5000
- }
- ],
- "UpstreamPathTemplate": "/GetList",
- "UpstreamHttpMethod": [ "Get" ]
- },
- {
- "DownstreamPathTemplate": "/{everything}",
- "DownstreamScheme": "http",
- "DownstreamHostAndPorts": [
- {
- "Host": "localhost",
- "Port": 5000
- }
- ],
- "UpstreamPathTemplate": "/{everything}",
- "UpstreamHttpMethod": [ "Post" ]
- },
- {
- "DownstreamPathTemplate": "/api/WeatherForecast/GetModel?id={s1}",
- "DownstreamScheme": "http",
- "DownstreamHostAndPorts": [
- {
- "Host": "localhost",
- "Port": 5000
- }
- ],
- "UpstreamPathTemplate": "/GetModel?id={s1}",
- "UpstreamHttpMethod": [ "Get" ]
- }
- ]
- }
7、2個項目運行,測試
代碼地址
https://gitee.com/conanOpenSource_admin/Example/commit/b3b5a6b15a060b46c5ecd2ea31f0d36791cda18c