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我正在尝试调用谷歌云 API。具体来说，来自 c# 的语言 API 使用 RestSharp 库和 OAuth 2。我能够使用下面的 curl 调用成功连接到 API：

curl -s -k -H "Content-Type: application/json" -H "Authorization: Bearer <access_token>"
     https://language.googleapis.com/v1beta1/documents:annotateText
 -d @c:\temp\entity_request.json > c:\temp\googleanalysis.json

我尝试了几种不同的身份验证方式，但到目前为止，它们都没有奏效。我最新的 c# 代码如下所示：

var client = new RestClient("https://language.googleapis.com");
client.Authenticator = new RestSharp.Authenticators.HttpBasicAuthenticator("client-app", "<access_token>");


var request = new RestRequest("/v1beta1/documents:analyzeEntities", Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddFile("filename", @"c:\temp\entity_request.json");

var response = client.Execute(request);
var content = response.Content;

当我从 c# 运行此调用时，我收到以下错误：

{
  "error": {
    "code": 403,
    "message": "The request cannot be identified with a client project. Please pass a valid API key with the request.",
    "status": "PERMISSION_DENIED"
  }
}

我的问题是如何正确调用 RestSharp 中的谷歌云 API，就像我成功使用 curl 一样？

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1 回答 1

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这对我有用：

            //obtenemos el token para las peticiones
            string access_token = GetAccessToken(jsonFolder, new string[] { "https://www.googleapis.com/auth/cloud-platform" });

            //peticiones hacia el rest de automl
            var client = new RestClient("https://language.googleapis.com");
            var request = new RestRequest("v1/documents:analyzeEntities", Method.POST);

            request.AddHeader("Authorization", string.Format("Bearer {0}", access_token));
            request.AddHeader("Content-Type", "aplication/json");

            //seteamos el objeto
            var aml = new AutoMLload_entities();
            aml.document.content = text;

            request.AddJsonBody(aml);
            IRestResponse response = client.Execute(request);
            if (response.StatusCode == System.Net.HttpStatusCode.OK)
            {
于 2019-11-21T19:37:44.593 回答