[英]Internal Server Error while using MS Graph Site API with C#
I'm trying to search file on SharePoint using Graph API.我正在尝试使用图形 API 在 SharePoint 上搜索文件。 Getting the correct result on
Microsoft graph-explorer
but when I try with C# Getting error Status Code: 500
Reason Phrase:Internal Server Error
在
Microsoft graph-explorer
上获得正确的结果,但是当我尝试使用 C# 时出现错误Status Code: 500
Reason Phrase:Internal Server Error
Response Details as below:回复详情如下:
{
"error": {
"code": "System.NullReferenceException",
"message": "Object reference not set to an instance of an object.",
"innerError": {
"date": "2021-03-19T16:16:28",
"request-id": "f3092cda-b813-4507-928e-7e2de84fc88f",
"client-request-id": "f3092cda-b813-4507-928e-7e2de84fc88f"
}
}
}
C# Code I'm using C# 我正在使用的代码
var searchTerm = "164377_07323_03122021_112659_TaxApp";
var headerStr = @"{{""requests"": [{{""entityTypes"": [""listItem""],""query"": {{""queryString"": ""{0}""}}}}]}}";
headerStr = string.Format(headerStr, searchTerm);
var headerJson = JsonConvert.SerializeObject(headerStr);
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", authResponse.AccessToken);
var content = new StringContent(headerJson, Encoding.UTF8, "application/json");
HttpResponseMessage response = httpClient.PostAsync("https://graph.microsoft.com/v1.0/search/query", content).Result;
var postResult = response.Content.ReadAsStringAsync().Result;
Any pointers where I'm going wrong?任何指示我哪里出错了?
Try using the below code.尝试使用下面的代码。 Looks like your code is getting serialized twice.
看起来您的代码被序列化了两次。 So I just removed the serialization step and it worked.
所以我只是删除了序列化步骤并且它起作用了。
var searchTerm = "164377_07323_03122021_112659_TaxApp";
var headerStr = @"{{""requests"": [{{""entityTypes"": [""listItem""],""query"": {{""queryString"": ""{0}""}}}}]}}";
headerStr = string.Format(headerStr, searchTerm);
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", authResponse.AccessToken);
var content = new StringContent(headerStr, Encoding.UTF8, "application/json");
HttpResponseMessage response = httpClient.PostAsync("https://graph.microsoft.com/v1.0/search/query", content).Result;
var postResult = response.Content.ReadAsStringAsync().Result;
You can always test the API requests using fiddler .您始终可以使用fiddler测试 API 请求。
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