I'm working on a website and want to add Google login functionality alongside my existing regular login option. The challenge I'm facing is that when users log in with Google, they don't have the chance to create their accounts like they do with my regular signup process, which allows them to set up a password, username, and profile picture. How can I integrate both login methods so they work together seamlessly?
3 Answers
Services like Google auth, email auth, Discord auth, etc., come with easy-to-use tools to set everything up. You might want to check the documentation for these authentication apps; they've made combining different logins much simpler.
I tackled this in a recent project. Essentially, a Google login allows users to sign in with their Google credentials and still gets added to your user database. Instead of asking for a username and password, you'd pull their Google ID and email through the Google API. If a user logs in via Google and there's already an account linked to that email (but not tied to a Google ID), you can either log them into the existing account or prompt them to merge it. If someone tries to create an account after using Google, just inform them that an account already exists with that email and they should sign in using Google. Also, remember to include email verification for those regular accounts to avoid any issues!
For projects like this, using a library such as better-auth can save you a lot of headaches. Implementing authentication from scratch can be quite complex!
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