Troubleshooting Common Supabase Auth Issues
Even with the simplicity Supabase Auth offers, you might run into a few common hiccups. Don't worry, most of them are easily solvable! This section will walk you through some of the most frequent issues and how to fix them.
This is a classic! It usually means one of a few things:
- Typo in Email/Password: Double-check that you've entered the correct email address and password. Case sensitivity matters!
- User Not Yet Confirmed: If your authentication flow requires email confirmation, the user might be trying to log in before clicking the confirmation link. You can either prompt them to check their email or, for development, temporarily disable email confirmation in your Supabase project settings (under Auth -> Settings -> Email Templates -> Confirmation Email).
- Incorrect User: The email address you're using might not exist in your Supabase Auth table. Ensure you're signing up with the correct email first.
These errors typically indicate a problem with your authentication tokens (JWTs - JSON Web Tokens). Here's what to check:
- Expired Token: JWTs have an expiration time. If your app is making requests after the token has expired, you'll get this error. You'll need to implement a refresh token flow to get a new JWT. Supabase clients often handle this automatically, but it's good to be aware of.
- Incorrect Token: Ensure the token being sent in your requests is the correct, valid JWT obtained after a successful login. Sometimes, residual stale tokens in local storage or session storage can cause this.
- Client Configuration: Verify that your Supabase client is correctly configured with your project's URL and anon key. An incorrectly initialized client might not be sending or validating tokens properly.
import { createClient } from '@supabase/supabase-js'
const supabaseUrl = 'YOUR_SUPABASE_URL'
const supabaseAnonKey = 'YOUR_SUPABASE_ANON_KEY'
const supabase = createClient(supabaseUrl, supabaseAnonKey)Social logins (like Google, GitHub, etc.) are super convenient but can sometimes be tricky to set up.
- Provider Configuration: The most common issue is incorrect configuration in the Supabase Dashboard. Navigate to Auth -> Providers and ensure you've correctly entered the Client ID and Client Secret for the provider you're using. Make sure the redirect URLs are also accurate.