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c# - HttpClient postasync，带有自定义标头和应用程序/json，用于正文 C#

问题描述

您好，我想从其运行推送应用中心api。但我不知道如何制作正确的格式。

我想postasync从这个api：https ://appcenter.ms/api/v0.1/apps/KacangIjo/ShopDiaryApp/push/notifications

Headers 需要的是： X-API-Token ="{api token}" 和 Content Type="application/json"

对于正文（内容），我想说：

{
    "notification_content" : {
        "name" : "Campaign Name",
        "title" : "Expired Warning",
        "body" : "You have items that almost expired"
    }
}

我很难为 HttpClient 编写正确的格式。我试过这个，没有工作..

Content = new Content
{
   Name = "Campaign Name",
   Title = "Expired Warning",
   Body = "You have items that almost expired"
};
using (var client = new HttpClient { Timeout = TimeSpan.FromSeconds(30) })
{
   var myContent = JsonConvert.SerializeObject(data);
   client.DefaultRequestHeaders.Add("X-API-Token", "{my api token}");
   client.DefaultRequestHeaders.Accept.Add(new 
   MediaTypeWithQualityHeaderValue("application/json"));
   var builder = new UriBuilder(new Uri("https://appcenter.ms/api/v0.1/apps/KacangIjo/ShopDiaryApp/push/notifications"));
   HttpResponseMessage response = await client.PostAsync(builder.Uri, content);
};

但我知道这段代码：

 {
        "notification_content" : {
            "name" : "Campaign Name",
            "title" : "Expired Warning",
            "body" : "You have items that almost expired"
        }
    }

与转换json格式不同：

Content = new Content
{
    Name = "Campaign Name",
    Title = "Expired Warning",
    Body = "You have items that almost expired"
};

可以帮助我正确的序列化 Json 格式吗？以及 httpclient 标头和正文的正确格式？我已经找到了很多样品，但仍然不知道我想要的那个。真的很感谢你们的帮助:)

标签： c#jsonhttpclientjson-serialization

解决方案

您需要构造类似于所需的对象JSON。

创建如下所示的类。

public class NotificationContent
{
    [JsonProperty("name")]
    public string Name { get; set; }

    [JsonProperty("title")]
    public string Title { get; set; }

    [JsonProperty("body")]
    public string Body { get; set; }
}

public class PostObject
{
    [JsonProperty("notification_content")]
    public NotificationContent NotificationContent { get; set; }
}

上面是正确的结构，现在当你调用时JsonConvert.SerializeObject，你的 json 将是

 {
    "notification_content" : {
        "name" : "Campaign Name",
        "title" : "Expired Warning",
        "body" : "You have items that almost expired"
    }
}

下面是http调用的代码

using (var client = new HttpClient { Timeout = TimeSpan.FromSeconds(30) })
    {
        PostObject postObject = new PostObject
        {
            NotificationContent = new NotificationContent
            {
                Name = "Campaign Name",
                Title = "Expired Warning",
                Body = "You have items that almost expired"
            }
        };

        var myContent = JsonConvert.SerializeObject(postObject);
        client.DefaultRequestHeaders.Add("X-API-Token", "{my api token}");
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        var builder = new UriBuilder(new Uri("https://appcenter.ms/api/v0.1/apps/KacangIjo/ShopDiaryApp/push/notifications"));

        HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, builder.Uri);
        request.Content = new StringContent(myContent, Encoding.UTF8, "application/json");//CONTENT-TYPE header

        HttpResponseMessage response = await client.SendAsync(request);
    };

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