C# WeChat development method to enable developer mode

This article mainly introduces the steps and methods of enabling developer mode in WeChat development. It has certain reference value. Let’s take a look at it with the editor

To enable development mode, you need to become a developer first. And you can only choose one of the editing mode and the development mode (enter the WeChat public platform => Development => Basic Configuration) and you can see the following interface:

Click to modify Configuration, the following interface will appear:

Fill in the server address (URL), Token and EncodingAESKey, where the URL is the interface used by developers to receive WeChat messages and events

At the same time, developers can choose the message encryption and decryption methods: plain text mode, compatibility mode and security mode. The mode selection and server configuration will take effect immediately after submission. Developers are advised to fill in and select carefully. The default state of encryption and decryption is plain text mode. To select compatibility mode and security mode, you need to configure the relevant encryption and decryption codes in advance. For details, please refer to the document on message body signature and encryption and decryption (WeChat official account message encryption and decryption development document).

After the developer submits the information, the WeChat server will send a GET request to the filled in server address URL , the GET request carries four parameters.

# Developers verify the request by checking the signature (the verification method is below). If it is confirmed that this GET request comes from the WeChat server, please return the echostr parameter content as it is, then the access will take effect and become a developer successfully, otherwise the access will fail (Note: WeChat server only supports port 80

Use GET request with the above parameters to request the server, specific implementation code:

public void InterfaceTest()
{
　　string token = "配置时填写的token";
　　string echoString = HttpContext.Current.Request.QueryString["echoStr"];
　 string signature = HttpContext.Current.Request.QueryString["signature"];
　　string timestamp = HttpContext.Current.Request.QueryString["timestamp"];
　　string nonce = HttpContext.Current.Request.QueryString["nonce"];
　　if (!string.IsNullOrEmpty(echoString))
　　{
　　　　HttpContext.Current.Response.Write(echoString);
　　　　HttpContext.Current.Response.End();
　　}
}

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