javascript - How does the WeChat applet obtain user information based on openid

Question

How does the WeChat applet obtain user information based on openid?
PS: According to the N number of openids returned by the server, the front desk obtains the corresponding user information based on the openid

Answer 1

It should be stored in the database from the beginning, so you don’t have to go and get signatures every time you need it. Just update it if there is an update