How to make authorization through social networks?

Question

User identification

Good afternoon. I am creating a site on react, I used firebase for authorization, but now I also need to do authorization through vk, fb, ok . In firebase, you can connect Facebook, but what to do with the rest?
I thought somehow to get an email and generate a password and then do the usual authorization through firebase, but I did not find a solution how to open a window where access to the email would be requested.

Answer 1

both vk and classmates have documentation that describes how you can interact with vk. https://vk.com/dev/access_token js code, so you can easily copy-paste it. for an example of how it might look https://github.com/canmeepo/react-vk-auth/blob/40a...
and I think it will be useful https://xsltdev.ru/react/redux/vzaimodeistvuem-s- vk/
https://apiok.ru/ext/oauth/
How to log in using classmates?