identityServer4+ RestSharp调用webapi

1.通过nuget添加restsharp类库；

官方调用例子：http://restsharp.org/

2.获取token

var httpClient = new HttpClient();
           var discoveryClient = httpClient.GetDiscoveryDocumentAsync(new DiscoveryDocumentRequest { Address = IdentityServerBaseUrl, Policy = { RequireHttps = false } }).Result;
           // 请求令牌
           var tokenResponse = httpClient.RequestClientCredentialsTokenAsync(new ClientCredentialsTokenRequest
           {
               Address = discoveryClient.TokenEndpoint,
               ClientId = ClientId,
               ClientSecret = ClientSecret,
               Scope = AllowScope
           });
           return tokenResponse.Result.AccessToken;
注意：在core 项目里面，IdentityServerBaseUrl，ClientId，ClientSecret等在Appsetting.json文件里面

3.通过restsharp请求

var client = new RestClient(url);
client.AddDefaultHeader("Authorization", string.Format("Bearer {0}", token));
var request = new RestRequest("", Method.GET);
var response = client.Execute(request);
//response.ResponseStatus==ResponseStatus.Completed；请求成成功
//response.StatusCode=OK==HttpStatusCode.OK

var content=response.Content;//返回结果