Take WeChat as an example.
1. Open WeChat and click on me in the lower right corner.
2. Click Pay, and click City Service in the payment interface.
3. After the location is switched to Shanghai, click the health code to start login verification.
4. After entering the authentication information, click Confirm Submit, continue to click Allow, and then click Next.
5. After the face recognition is completed, the application code can be obtained.
Shanghai "One Netcom Office" relies on the mobile terminal "with the application" to create a "with the application code" for Shanghai residents as a life service code to facilitate their work, life and travel needs. It was officially launched on February 13, 2020. According to the current demand of epidemic prevention and control in COVID-19, the "Shen Sui Code" has been given relevant information about healthy travel, prevention and control management, and has been applied in offline parks, streets and other scenes. At the same time, "Shen Sui Code" has been opened to platforms such as WeChat, Alipay and Nail.