{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*",
  "oauth": {
    "github": {
      "app_id": "c147cxxxxxxxxxxxxxxxxxxe6ea2", //OAuth App创建的Client ID
      "app_key": "03ef6xxxxxxxxxbe6f4f0febef5", //OAuth App创建的Client secrets
      "redirect_uri": "http://localhost:33180/oauth/githubcallback", //回调地址(这个地址是你自己写的，后面授权成功后做自己需要的功能) 
      "scope": "repo"  
    }
  }
}

// This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllersWithViews();
            //注入GitHub授权组件
            services.AddSingleton(new GithubOAuth(OAuthConfig.LoadFrom(Configuration, "oauth:github")));
        }

using Microsoft.AspNetCore.Mvc;
using MrHuo.OAuth.Github;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace ThirdPartyLogin.Controllers
{
    public class OAuthController : Controller
    {
        #region GitHub授权+回调
        //发起第三方授权申请
        [HttpGet("oauth/github")]
        public IActionResult Github([FromServices] GithubOAuth githubOAuth)
        {
            return Redirect(githubOAuth.GetAuthorizeUrl());
        }
        //第三方授权成功后回调方法
        [HttpGet("oauth/githubcallback")]
        public async Task<IActionResult> GithubCallback(
            [FromServices] GithubOAuth githubOAuth,
            [FromQuery] string code)
        {
            return Json(await githubOAuth.AuthorizeCallback(code));
        }
        #endregion
    }
}