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 prevent normal users accessing admin pages?

Guard the admin route with a check against the user's role from your `user_roles` table (not a front-end-only flag), and mirror that same check in RLS policies on any data the admin page loads.

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 different user roles?

Q: How do I create admin users?

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.

Last checked 31 Aug 2026

Short answer

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.

Why roles need their own table

If role lives on the same row a user can edit (like profiles), a bug or a crafted request can let someone grant themselves admin. Lovable's security guidance is explicit: roles must live in a separate user_roles table, keyed by user_id, never a column on a profile/users row.

Setting it up

Ask Lovable: "Create a user_roles table with roles admin, editor and user, and a has_role() function I can use in RLS policies."
Lovable generates the table, an enum for role names, and a security definer function that safely checks a user's role without triggering recursive RLS issues.
Use that function both in database policies (who can read/write what) and in the front end (which nav items/pages to show).

Role	Typical access
admin	Full read/write, manage users
editor	Create/edit content, no user management
user	Own data only

Add a "editor" role that can create and edit blog posts but can't manage users or see the admin dashboard.

What usually goes wrong

Checking roles only client-side, so the restriction is cosmetic — always back it with RLS.
Forgetting default role assignment on signup (new users should get a user row automatically, usually via a trigger).
Multiple roles per user not being planned for — decide upfront whether a user can hold more than one role.

See how-do-i-create-admin-users for assigning the admin role specifically, and how-do-i-build-an-admin-dashboard for using roles in a UI.

Sources

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