How to quickly debug WeChat applet interface with PHP

In recent years, the popularity of WeChat mini programs has continued to rise, and more and more developers have begun to get involved. For PHP developers, how to quickly debug the WeChat applet interface is a necessary skill. This article will introduce you to the methods and steps on how to quickly debug the WeChat applet interface in PHP.

1. Turn on the debugging mode

First, you need to turn on the debugging mode in the WeChat applet. In the left sidebar of the WeChat Mini Program Development Tool, click "Settings" - "Project Settings" and check the "Debug Mode in Developer Tools" option. After turning on the debugging mode, you can view the network request status and various error messages of the mini program in the console of the WeChat mini program development tool.

2. Obtain the WeChat applet interface debugging tool

In order to facilitate debugging, we need a WeChat applet interface debugging tool. Currently popular tools include Postman and Insomnia. Postman is a powerful API testing tool that supports multiple HTTP request methods and can simulate various request headers and request bodies. Insomnia is an API testing tool similar to Postman, but it is simpler and free to use.

Choose a tool that suits you and download and install it.

3. Obtain the parameters of the WeChat applet interface

Before debugging the WeChat applet interface, you need to obtain the parameters of the WeChat applet interface. The specific method is as follows:

1. Open the WeChat applet development tool, right-click on the page - "Inspect" to open the developer tools.

2. Select "Network" - "Filter", set the filter condition to "All", and check "Record File".

3. Access the corresponding interface in the mini program .

4. The interface request information will be recorded, including request headers, request methods, request parameters, response headers, response status codes, etc.

5. Copy the URL of the interface and the parameters in the request body.

4. Use the WeChat applet interface debugging tool to debug the interface

Next, we can use the WeChat applet interface debugging tool to debug the interface. Taking Postman as an example, the specific steps are as follows:

1. Open Postman and click "New Request" in the upper left corner.

2. In the pop-up window for creating a request, select the "POST" request and enter the interface URL.

3. Click the "Body" tab, select "raw", and enter the interface request parameters.

4. Click the "Send" button to send the request.

5. If the interface call is successful, response data and status code will be returned. Response data can be viewed in Postman's "Body" tab.

6. Problems encountered during debugging and solutions

1. Interface requests are restricted

Sometimes, WeChat applet development tools will limit interface requests, resulting in interface Unable to call. At this time, you need to check the network settings of the WeChat applet development tool, or change the network environment and try again.

2. The interface returns an error

If the interface returns an error, you can view the error message in the WeChat applet development tool to eliminate the cause of the error. For example, it may be that the interface parameter format is wrong, or the interface URL is wrong, etc.

3. Debugging tool connection failure

Sometimes, the WeChat applet interface debugging tool cannot connect to the WeChat applet development environment. You need to check the network environment or reinstall the interface debugging tool.

4. Summary

Through the above steps, we can troubleshoot problems and debug the interface more conveniently and quickly when debugging the WeChat applet interface. At the same time, when developing WeChat mini programs, it is recommended to turn on the debugging mode to facilitate viewing error messages and quickly locate problems.

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