How do I add login to Lovable?

Ask Lovable to add authentication — it enables Lovable Cloud (if not already on), then generates sign-up/login pages and wires them to email, Google, or other providers.

How do I add user registration?

Ask Lovable to add sign-up with the fields and verification behaviour you want — it builds the form, creates the user in Lovable Cloud's auth system, and can store extra profile details in your database.

How do I add Google login?

Ask Lovable to add Google sign-in — it can use Lovable's managed Google OAuth for a quick setup, or your own Google Cloud OAuth credentials if you need custom branding or scopes.

How do I add password reset?

Ask Lovable to add a "forgot password" flow — it uses Lovable Cloud's authentication to email a reset link and lets the user set a new password.

Why isn't my login working?

Check the browser console for the actual error first — common causes are unconfirmed email, a redirect URL mismatch, RLS blocking the post-login profile read, or a provider (like Google) misconfigured for the current domain.

Why does my app keep redirecting to login?

This is almost always a session or route-guard bug: either the auth session isn't persisting, or a protected route checks auth state before it's loaded, so it bounces back to login even when signed in.

Why are verification emails not arriving?

Usually the email lands in spam, the sending rate limit on Lovable Cloud's default mailer has been hit, or you haven't connected a proper email provider yet.

How do I restrict pages to logged-in users?

Wrap the routes in a protected-route component that checks the current auth session and redirects signed-out users to login, and back this up with row-level security on any data those pages fetch.

How do I create different user roles?

Store roles in a dedicated `user_roles` table (never a column on the user's profile), and use a security-definer function to check roles inside RLS policies and route guards.

How do I build an admin dashboard?

Ask Lovable to build a role-gated route that lists and manages your data (users, orders, content), backed by RLS policies that only let accounts with the `admin` role query the underlying tables.

How do I delete a user?

Ask Lovable to add an admin action that deletes both the user's auth account and their related data (profile rows, uploads, etc.), since removing one without the other leaves orphaned records or broken references.

How do I let users edit their profiles?

Add a profile form bound to a `profiles` table row keyed by the user's ID, with an RLS policy that only lets each user update their own row, not anyone else's.

How do I test authentication properly?

Test with real, separate accounts in a private browser window for each role (signed-out, normal user, admin), checking both the UI and that the underlying API/RLS actually blocks what it should — not just what the interface shows.

How do I create admin users?

Last checked 31 Aug 2026

Short answer

Add a `user_roles` table with an `admin` role, assign it to the specific user's ID, and check that role server-side (in RLS policies and any admin-only functions) rather than trusting a front-end flag.

The correct pattern

Never store "is this user an admin" as a boolean column on a profiles/users table — a user could potentially edit their own row. Instead:

Create a separate user_roles table with columns like user_id and role (e.g. admin, moderator, user).
Use a Postgres function (has_role(user_id, role)) checked inside RLS policies to gate admin-only reads/writes.
Assign the admin role to a specific account by inserting a row — ask Lovable to do this for you, or do it via a one-off admin action once you're signed in as that user.

Set up a user_roles table with admin and user roles, and make my account (email: you@example.com) an admin.

How to promote a user to admin

Sign up normally with the account you want to be admin.
Ask Lovable: "Give the user with email you@example.com the admin role in user_roles."
Lovable Cloud users don't have direct database dashboard access, so always go through Lovable's chat to run this kind of one-off data change rather than looking for a Supabase dashboard.

What usually goes wrong

Putting role on the profile table, which a signed-in user can update via a normal profile-edit form, silently making themselves admin.
Checking the role only in the front end (hiding a button) without an RLS policy — the underlying data is still exposed to direct API calls.
Forgetting that RLS policies must reference the user_roles table via a security definer function to avoid recursive policy checks.

Once roles exist, restricting pages by role is covered in how-do-i-prevent-normal-users-accessing-admin-pages.

Sources

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