How to achieve real-time data display on WeChat Mini Program?

To achieve real-time data display for WeChat mini programs, you can follow these steps:

1. To obtain real-time data from the backend: First, you need a backend server to store and update the data. You can use backend frameworks such as Node.js, Python Flask, etc., to build a backend server and provide interfaces for the mini-program to call and retrieve real-time data.
2. Mini program data interface request: In the mini program, you can use the wx.request() method to send network requests and call the backend interface to obtain real-time data. After a successful request, save the data in the mini program’s data for later display.
3. Real-time data display: binding the retrieved data to the small program’s page, data can be displayed on the corresponding page elements through data binding. For example, data lists can be iterated through using wx:for loops, and displayed on the page using {{}} notation.
4. Scheduled updates for data: If real-time data updates are needed for display, a timer can be used to periodically request data from the backend and refresh the page. The wx.setInterval() method can be used to set a timer, which will send requests and update the data at regular intervals.

It is important to consider performance and traffic when displaying real-time data, so the frequency of updates and the size of the data should be determined based on specific needs to prevent placing too much burden on user experience and network traffic.