WeChat Mini Programs third-party platform development, how to obtain extAppid? in ext.json

the official document says:
"in order to facilitate developers of third-party platforms to introduce extAppid development and debugging work, it is necessary to introduce the concept of ext.json. Ext.json is a configuration file that is placed in the root directory of Mini Program"s project. "
there is an attribute extAppid in this ext.json that needs authorization. How can I get this appid in Mini Program"s appid, Mini Program code?

You should not get it in the

code. Never tried. I'm sorry


as far as I know. I asked you to do Mini Program for me. I have to give you appId first. AppId and secret are private content. Check


wx.getExtConfig (Object object)


const extConfig = wx.getExtConfigSync in the official account platform? Wx.getExtConfigSync (): {}

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