[WeChat Mini Program] Error {"errcode":41002,"errmsg":"appid missing, rid: 64e55770-67c1fb7e-027c5a70"}:

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1. Error details:

(1) Backend:

(2) Frontend:

2. The reason for the error:

(1) The appids used by the front and back ends are inconsistent (WeChat Developer Tools/HBuilderX)
(2) Repeated requests, the incoming codes are inconsistent

3. Obtain WeChat appid and secret:

[WeChat public account platform] https://mp.weixin.qq.com/
[WeChat official document] https://developers.weixin.qq.com/miniprogram/dev/OpenApiDoc/user-login/code2Session.html