在C#中使用Office 365 API和HttpClient更新电子邮件类别时出现错误请求错误 [英] Getting Bad Request error while updating email category with Office 365 API and HttpClient in C#

问题描述

我正在尝试通过Outlook 365 API和HttpClient来更新电子邮件类别并将其标记为已读.遵循本教程.

在本教程中，代码如下，以更新类别并将其标记为已读，但是我没有得到应该如何将这些详细信息附加到HttpClient并请求的信息.

PATCH https://outlook.office.com/api/v2.0/me/messages/AAMkAGE0Mz8S-AAA=
Content-Type: application/json

{
"Categories": [
"Orange category",
"Green category"
],
"IsRead": true
}

我正在使用的方法和HttpClient如下:

更新1

public string UpdateCategory(AuthenticationResult result, string mediator)
    {
    //HTTPMethod.PATCH not available to adding it manualy.
    var httpMethod = new HttpMethod("PATCH");
    HttpRequestMessage request = new HttpRequestMessage(httpMethod, mediator);
    request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", result.AccessToken);
    //JSON in a string variable for test
    var tempJson = @"{""Categories"" : ""Checking""}";
    Converting string to JSON
    var jsonData = JsonConvert.SerializeObject(tempJson);
    //Adding the JSON to request.Content
    request.Content =new StringContent(jsonData,Encoding.UTF8, "application/json");
    HttpResponseMessage response = httpClient.SendAsync(request).Result;
    if (!response.IsSuccessStatusCode)
     throw new WebException(response.StatusCode.ToString() + ": " + response.ReasonPhrase);
    mediator = response.Content.ReadAsStringAsync().Result;
    return mediator;
    }

它抛出Bad Request错误.

我正在将365 API与WPF应用程序一起使用.请告知.

解决方案

最终得到了解决方案.这是给像我这样的新手使用的.

出了什么问题-

当我向主体请求带有PATCH的API时，出现了Bad Request错误.

我在做什么错-

当我使用此很棒的工具评估Outlook 365 API的请求时，我知道错误是

"error": {
    "code": "RequestBodyRead",
    "message": "An unexpected 'PrimitiveValue' node was found when reading from the JSON reader. A 'StartArray' node was expected."
}

此错误表示我发送了错误的数据.我正在将string发送到List<string>.我知道这真的很愚蠢，但是发生的对吗? ;)

因此，为了更正此问题而不是将JSON作为固定字符串传递，我创建了一个具有List<string>属性的类，如下所示，以便可以根据需要灵活地输入类别.

public class ChangeEmailCategory
{
    public List<string> Categories { get; set; }

}

这是最终方法.

//Passing parameters - AuthenticationResult, URI with authentication header, List of categories.
public string UpdateCategory(AuthenticationResult result, string uriString,List<string> categories)
    {
        //HTTPMethod.PATCH not available so adding it manualy.
        var httpMethod = new HttpMethod("PATCH");
        HttpRequestMessage request = new HttpRequestMessage(httpMethod, uriString);
        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", result.AccessToken);
        ChangeEmailCategory cec = new ChangeEmailCategory();
        cec.Categories = categories;
        //Serializing class properties as JSON
        var jsonData = JsonConvert.SerializeObject(cec);
        //Adding JSON to request body
        request.Content =new StringContent(jsonData,Encoding.UTF8, "application/json");
        HttpResponseMessage response = httpClient.SendAsync(request).Result;
        if (!response.IsSuccessStatusCode)
            throw new WebException(response.StatusCode.ToString() + ": " + response.ReasonPhrase);
        return response.Content.ReadAsStringAsync().Result;
    }

这是方法调用.

List<string> categories = new List<string>();
categories.Add("Checking");
//utility is my class containing method
utility.UpdateCategory(result, categoryChangeUri, categories);

仅此而已！我花了一天的时间来学习和解决它.多亏了我提到但不记得在这里不提及的Stack Overflow和google上的所有帖子.

如果有人需要任何与此有关的其他信息，请告诉我.请在评论中提及我.我会尽力帮助.

I'm trying to to update email category and also mark it as read after that with the help of Outlook 365 API and HttpClient. Following this tutorial.

In the tutorial the code is as below to update category and mark as read but, I'm not getting that how should I attach these details to HttpClient and request.

PATCH https://outlook.office.com/api/v2.0/me/messages/AAMkAGE0Mz8S-AAA=
Content-Type: application/json

{
"Categories": [
"Orange category",
"Green category"
],
"IsRead": true
}

The method and HttpClient I'm using are as below:

Update 1

public string UpdateCategory(AuthenticationResult result, string mediator)
    {
    //HTTPMethod.PATCH not available to adding it manualy.
    var httpMethod = new HttpMethod("PATCH");
    HttpRequestMessage request = new HttpRequestMessage(httpMethod, mediator);
    request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", result.AccessToken);
    //JSON in a string variable for test
    var tempJson = @"{""Categories"" : ""Checking""}";
    Converting string to JSON
    var jsonData = JsonConvert.SerializeObject(tempJson);
    //Adding the JSON to request.Content
    request.Content =new StringContent(jsonData,Encoding.UTF8, "application/json");
    HttpResponseMessage response = httpClient.SendAsync(request).Result;
    if (!response.IsSuccessStatusCode)
     throw new WebException(response.StatusCode.ToString() + ": " + response.ReasonPhrase);
    mediator = response.Content.ReadAsStringAsync().Result;
    return mediator;
    }

It's throwing Bad Request error.

I am using 365 API with a WPF application. Please advise.

解决方案

Finally got solution. Here it is for newbies like me.

What was the error -

When I request API with PATCH with body I was getting Bad Request error.

What I was doing wrong -

When I evaluated my request with this awesome tool for testing outlook 365 API, I come to know the error which was

"error": {
    "code": "RequestBodyRead",
    "message": "An unexpected 'PrimitiveValue' node was found when reading from the JSON reader. A 'StartArray' node was expected."
}

This error meant I was sending wrong data. I was sending string to a List<string>. This is really silly I know but it happens right? ;)

So, to correct this instead of passing JSON as fixed string, I created a class with a List<string> property as below to have flexibility to input category as want.

public class ChangeEmailCategory
{
    public List<string> Categories { get; set; }

}

And here is final method.

//Passing parameters - AuthenticationResult, URI with authentication header, List of categories.
public string UpdateCategory(AuthenticationResult result, string uriString,List<string> categories)
    {
        //HTTPMethod.PATCH not available so adding it manualy.
        var httpMethod = new HttpMethod("PATCH");
        HttpRequestMessage request = new HttpRequestMessage(httpMethod, uriString);
        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", result.AccessToken);
        ChangeEmailCategory cec = new ChangeEmailCategory();
        cec.Categories = categories;
        //Serializing class properties as JSON
        var jsonData = JsonConvert.SerializeObject(cec);
        //Adding JSON to request body
        request.Content =new StringContent(jsonData,Encoding.UTF8, "application/json");
        HttpResponseMessage response = httpClient.SendAsync(request).Result;
        if (!response.IsSuccessStatusCode)
            throw new WebException(response.StatusCode.ToString() + ": " + response.ReasonPhrase);
        return response.Content.ReadAsStringAsync().Result;
    }

Here is method call.

List<string> categories = new List<string>();
categories.Add("Checking");
//utility is my class containing method
utility.UpdateCategory(result, categoryChangeUri, categories);

That's all! It took me one day to learn and figure it out. Thanks to all posts on Stack Overflow and google which I referred but not remember not to mention here.

If anyone need any additional information regarding this do let me know. Just mention me in comments. I will try to help.

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