How to Send HTTP POST Requests in .NET?

.NET Send http post request

When processing the http post request in .NET, you can consider several methods. The following is an overview of the available method:

Preferred method: httpclient (suitable for most scenarios)

For the HTTP request, it is recommended to use the HTTPClient class, which provides a high -performance asynchronous method. Because of its flexibility, built -in function, and very suitable for most use cases, it is the preferred method. The following is an example of using httpclient:

Replacement library: third -party options

using System.Net.Http;

// 设置：为您的应用程序创建一个单例 HttpClient
private static readonly HttpClient client = new HttpClient();

// 使用表单数据发送 POST 请求
var values = new Dictionary<string, string>()
{
    { "thing1", "hello" },
    { "thing2", "world" }
};
var content = new FormUrlEncodedContent(values);
var response = await client.PostAsync("http://www.example.com/recepticle.aspx", content);

If you are willing, you can use a third -party library to process the HTTP request. Here are some commonly used options:

RestSharp:

Provides a flexible and easy -to -use API to send a request and provide a series of functions.

Flurl.http:
• Provides a smooth API, test assistant, and uses HTTPClient inside to make it a transplantable and efficient choice.
Old method: httpwebrequest and webclient
• Out of compatibility or in some cases, you may still need to consider using httpwebrequest or webclient. However, it is usually not recommended to use them in new projects, because their performance may be lower than HTTPClient, and they provide less function.

httpwebrequest: The httpclient with the bottom layer is encapsulated, which has low performance in .NET CORE.

Webclient:

A box that surrounds HTTPWEBREQUEST can be used for synchronous requests in specific scenarios.

• In the end, the choice of method depends on your specific needs. For most modern applications and scenarios, HTTPClient has become the first choice because of its efficiency and function set.

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