Hello, there! I'm currently trying to implement third party recipe in my project (vanilla js + nestjs). I added the backend support which seems to be working fine. Now I'm trying to implement a custom login ui according to this guide:
https://supertokens.com/blog/adding-social-login-to-your-website-with-supertokens. I managed to successfully redirect the user to the third party auth page which is step 1 of the guide, however I'm not really understanding where I'm supposed to place the code of step 2. I would be very grateful if somebody could clarify it for me.