Files
supabase/apps/ui-library/content/docs/react-router/password-based-auth.mdx
Terry SuttonandIvan Vasilov f3b67a10d3 UI library/rr (#34384)
* Add rr auth block

* Fix file structure

* Update components with new flow

* Fix the registry item for react router auth.

* Update the forgot-password for react router.

* Fix the rest of the link imports.

* Fix the react route client.

* Refactor the auth block for React Router.

* Add config for recovery mail to the ui library supabase config.

* snapshot.

* Minor fixes.

* Minor doc fixes.

---------

Co-authored-by: Ivan Vasilov <vasilov.ivan@gmail.com>
2025-03-27 22:48:28 +01:00

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---
title: Password-based Auth (Next.js)
description: Password-based Auth block for Next.js app
---
<BlockPreview name="password-based-auth/sign-up" />
## Installation
<BlockItem
name="password-based-auth-nextjs"
description="All needed components for the password based auth flow"
/>
## Folder structure
This block includes the [Supabase client](/ui/docs/react-router/client). When installing, you can skip overwriting it.
<RegistryBlock itemName="password-based-auth-react-router" />
## Usage
Once you install the block in your React Router project, you'll get all the necessary pages and components to set up a password-based authentication flow.
### Getting started
First, add a `.env` file to your project with the following environment variables:
```env
VITE_SUPABASE_URL=
VITE_SUPABASE_ANON_KEY=
```
- If you're using supabase.com, you can find these values in the [Connect modal](https://supabase.com/dashboard/project/_?showConnect=true) under App Frameworks or in your project's [API settings](https://supabase.com/dashboard/project/_/settings/api).
- If you're using a local instance of supabase, you can find these values by running `supabase start` or `supabase status` (if you already have it running).
### Adding email templates
1. Add an [email template for sign-up](https://supabase.com/dashboard/project/_/auth/templates) to the Supabase project. Your signup email template should contain at least the following HTML:
```html
<h2>Confirm your signup</h2>
<p>Follow this link to confirm your user:</p>
<p>
<a
href="{{ .SiteURL }}/auth/confirm?token_hash={{ .TokenHash }}&type=email&next={{ .RedirectTo }}"
>Confirm your email</a
>
</p>
```
For detailed instructions on how to configure your email templates, including the use of variables like `{{ .SiteURL }}`,`{{ .TokenHash }}`, and `{{ .RedirectTo }}`, refer to our [Email Templates guide](https://supabase.com/docs/email-templates).
1. Add an [email template for reset password](https://supabase.com/dashboard/project/_/auth/templates) to the Supabase project. Your reset password email template should contain at least the following HTML:
```html
<h2>Reset Password</h2>
<p>Follow this link to reset the password for your user:</p>
<p>
<a
href="{{ .SiteURL }}/auth/confirm?token_hash={{ .TokenHash }}&type=recovery&next={{ .RedirectTo }}"
>Reset Password</a
>
</p>
```
### Setting up routes and redirect URLs
1. Set the site URL in the [URL Configuration](https://supabase.com/dashboard/project/_/auth/url-configuration) settings in the Supabase Dashboard.
1. Set up the route users will visit to reset or update their password. First, update the `forgot-password.tsx` component with your `update-password` route. You'll need to tell Supabase to allow this route as the redirect URL. Go to the [URL Configuration](https://supabase.com/dashboard/project/_/auth/url-configuration) settings and add that route to the list of Redirect URLs. It should look something like: `http://example.com/update-password`.
1. Update the redirect paths in the `login.tsx` and `update-password.tsx` components to point to the logged-in routes in your app.