Use Supabase with Refine

Help me add Supabase to my Refine project. Create a Supabase project at
database.new and run the instruments table SQL. Then:
1. Run `npm create refine-app@latest -- --preset refine-supabase my-app` to
   scaffold the app with Supabase pre-configured.
2. Update `src/utility/supabaseClient.ts` with your Supabase URL and publishable
   key.
3. Run `npm run refine create-resource instruments` to generate CRUD pages for
   the instruments table.
4. Update `src/App.tsx` to add routes for the instruments list, create, edit,
   and show pages.
5. Run `npm run dev` and open http://localhost:5173/instruments.

REFERENCE
https://supabase.com/docs/guides/getting-started/quickstarts/refine.md

1. Create a Supabase project

To start, you need a Supabase project.

Create a new Supabase project from the Dashboard of any organization you belong to.

2. Set up your database

When your Supabase project is up and running, create an instruments table with some sample data. Then set only the privileges each Postgres role needs, add Row Level Security (RLS) for enhanced security for database data by default, and create an RLS policy to make the data in the table publicly readable.

Do these steps within your project's dashboard by copying and running the snippet in your project's SQL Editor.

-- Create the table
create table instruments (
  id bigint primary key generated always as identity,
  name text not null
);

-- Insert sample data into the table
insert into instruments (name)
values
  ('violin'),
  ('viola'),
  ('cello');

-- Grant the privileges the role needs, which is read access
grant select on public.instruments to anon;

-- Enable row level security for the table
alter table instruments enable row level security;

-- Create a policy to allow the anon role to read from the instruments table
create policy "public can read instruments"
on public.instruments
for select to anon
using (true);

3. Create a Refine app

Create a Refine app using the create refine-app.

The refine-supabase preset adds @refinedev/supabase supplementary package that supports Supabase in a Refine app. @refinedev/supabase out-of-the-box includes the Supabase dependency: supabase-js.

npm create refine-app@latest -- --preset refine-supabase my-app

printf '\n' | npm create refine-app@latest -- --preset refine-supabase my-app

4. Set up AI tooling (optional)

Supabase provides two ways to give AI tools context about your project: Agent Skills, which give your AI coding agent procedural knowledge, and the MCP server, which connects AI assistants to your Supabase project directly.

Agent Skills

Agent Skills is a curated set of instructions that give your AI agent procedural knowledge about working with Supabase.

Install them so your AI coding agent can produce more accurate, reliable code using current Supabase patterns, such as authentication, server-side rendering, and database migrations, rather than relying solely on training data.

Installing Agent Skills

To install, run the following command in the root of your project:

npx skills add supabase/agent-skills

Supabase MCP server

The Supabase MCP server connects AI assistants to Supabase, so they can inspect your schema and act on your projects on your behalf. Find out how to add it to your client in the MCP docs.

5. Update supabaseClient with environment variables

Create a .env file and populate it with your Supabase URL and publishable key, which you can get from the helper below, or from the project Connect panel.

VITE_SUPABASE_URL=<SUBSTITUTE_SUPABASE_URL>
VITE_SUPABASE_PUBLISHABLE_KEY=<SUBSTITUTE_SUPABASE_PUBLISHABLE_KEY>

The refine-supabase preset hardcodes Refine's own demo Supabase project in src/providers/constants.ts, and initializes the client from it in src/providers/supabase-client.ts. Replace the hardcoded values so the client reads your project credentials from the environment variables above instead:

export const SUPABASE_URL = import.meta.env.VITE_SUPABASE_URL
export const SUPABASE_KEY = import.meta.env.VITE_SUPABASE_PUBLISHABLE_KEY

The supabaseClient is used by the auth and data providers to connect your Refine app to Supabase.

Get API details

To interact with data in database tables, you use the client libraries that wrap the auto-generated Data API endpoints, authenticating using the Project URL and key from the project Connect dialog.

Project URL: https://<project-ref>.supabase.co (find yours in the dashboard)

Publishable key: sb_publishable_... (find yours in the dashboard)

6. Add instruments resource and pages

Use the following code to automatically add resources and generate code for the pages to show the instruments data using Refine Inferencer.

This defines pages for list, create, show and edit actions inside the src/pages/instruments/ directory with a <HeadlessInferencer /> component.

The <HeadlessInferencer /> component depends on @refinedev/react-table, @refinedev/react-hook-form, and react-live packages. To avoid errors, install them as dependencies:

npm install @refinedev/react-table @refinedev/react-hook-form react-live

npm run refine create-resource instruments

7. Add routes for instruments pages

Add routes for the list, create, show, and edit pages.

import { Refine } from '@refinedev/core'
import { RefineKbar, RefineKbarProvider } from '@refinedev/kbar'
import routerProvider, {
  DocumentTitleHandler,
  NavigateToResource,
  UnsavedChangesNotifier,
} from '@refinedev/react-router'
import { liveProvider } from '@refinedev/supabase'
import { BrowserRouter, Route, Routes } from 'react-router'

import './App.css'

import {
  InstrumentsCreate,
  InstrumentsEdit,
  InstrumentsList,
  InstrumentsShow,
} from './pages/instruments'
import authProvider from './providers/auth'
import { dataProvider } from './providers/data'
import { supabaseClient } from './providers/supabase-client'

function App() {
  return (
    <BrowserRouter>
      <RefineKbarProvider>
        <Refine
          dataProvider={dataProvider}
          liveProvider={liveProvider(supabaseClient)}
          authProvider={authProvider}
          routerProvider={routerProvider}
          options={{
            syncWithLocation: true,
            warnWhenUnsavedChanges: true,
          }}
          resources={[
            {
              name: 'instruments',
              list: '/instruments',
              create: '/instruments/create',
              edit: '/instruments/edit/:id',
              show: '/instruments/show/:id',
            },
          ]}
        >
          <Routes>
            <Route index element={<NavigateToResource resource="instruments" />} />
            <Route path="/instruments">
              <Route index element={<InstrumentsList />} />
              <Route path="create" element={<InstrumentsCreate />} />
              <Route path="edit/:id" element={<InstrumentsEdit />} />
              <Route path="show/:id" element={<InstrumentsShow />} />
            </Route>
          </Routes>
          <RefineKbar />
          <UnsavedChangesNotifier />
          <DocumentTitleHandler />
        </Refine>
      </RefineKbarProvider>
    </BrowserRouter>
  )
}

export default App

8. Allow writes to the instruments table

The scaffolded pages create and edit instruments, but the database setup in step 2 grants read access only. Without write privileges and matching policies, the create and edit pages fail with permission denied for table instruments.

Grant the privileges and add the policies. Run the following SQL using the SQL Editor in the Supabase Dashboard or with psql over a direct connection. To connect with psql, see Direct connection.

grant insert, update, delete on public.instruments to anon;

create policy "public can insert instruments"
on public.instruments
for insert to anon
with check (true);

create policy "public can update instruments"
on public.instruments
for update to anon
using (true)
with check (true);

create policy "public can delete instruments"
on public.instruments
for delete to anon
using (true);

9. Start the app

Run the development server, then open /instruments in your browser (Vite defaults to http://localhost:5173). You should see the instruments pages along the /instruments routes. You can edit and add new instruments using the Inferencer-generated UI.

npm run dev

The Inferencer auto-generated code gives you a good starting point on which to keep building your list, create, show and edit pages. You can get these by clicking the Show the auto-generated code buttons in their respective pages.

Production requirements

The quickstart procedure in this guide optimizes for getting you to a working app, not for production.

Before you deploy:

• If your app reads or writes through the Data API, review your Row Level Security policies. Any policy you added here is scoped to this quickstart's sample data, not to real user data.
• Set your Supabase credentials as environment variables on whatever platform you deploy to, rather than committing them to source control.
• Configure a custom domain for your Supabase project once you're ready to go live.

Next steps

• Set up Auth for your app
• Insert more data into your database
• Upload and serve static files using Storage