supabase-nextjs

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# Supabase + Next.js Skill


Next.js App Router patterns with Supabase Auth and Drizzle ORM.

**Sources:** [Supabase Next.js Guide](https://supabase.com/docs/guides/auth/server-side/nextjs) | [Drizzle + Supabase](https://supabase.com/docs/guides/database/drizzle)

---

## Core Principle

**Drizzle for queries, Supabase for auth/storage, server components by default.**

Use Drizzle ORM for type-safe database access. Use Supabase client for auth, storage, and realtime. Prefer server components; use client components only when needed.

---

## Project Structure

```
project/
├── src/
│   ├── app/
│   │   ├── (auth)/
│   │   │   ├── login/page.tsx
│   │   │   ├── signup/page.tsx
│   │   │   └── callback/route.ts
│   │   ├── (dashboard)/
│   │   │   └── page.tsx
│   │   ├── api/
│   │   │   └── [...]/route.ts
│   │   ├── layout.tsx
│   │   └── page.tsx
│   ├── components/
│   │   ├── auth/
│   │   └── ui/
│   ├── db/
│   │   ├── index.ts              # Drizzle client
│   │   ├── schema.ts             # Schema definitions
│   │   └── queries/              # Query functions
│   ├── lib/
│   │   ├── supabase/
│   │   │   ├── client.ts         # Browser client
│   │   │   ├── server.ts         # Server client
│   │   │   └── middleware.ts     # Auth middleware helper
│   │   └── auth.ts               # Auth helpers
│   └── middleware.ts             # Next.js middleware
├── supabase/
│   ├── migrations/
│   └── config.toml
├── drizzle.config.ts
└── .env.local
```

---

## Setup

### Install Dependencies
```bash
npm install @supabase/supabase-js @supabase/ssr drizzle-orm postgres
npm install -D drizzle-kit
```

### Environment Variables
```bash
# .env.local
NEXT_PUBLIC_SUPABASE_URL=http://localhost:54321
NEXT_PUBLIC_SUPABASE_ANON_KEY=<from supabase start>

# Server-side only
SUPABASE_SERVICE_ROLE_KEY=<from supabase start>
DATABASE_URL=postgresql://postgres:postgres@localhost:54322/postgres
```

---

## Drizzle Setup

### drizzle.config.ts
```typescript
import { defineConfig } from 'drizzle-kit';

export default defineConfig({
  schema: './src/db/schema.ts',
  out: './supabase/migrations',
  dialect: 'postgresql',
  dbCredentials: {
    url: process.env.DATABASE_URL!,
  },
  schemaFilter: ['public'],
});
```

### src/db/index.ts
```typescript
import { drizzle } from 'drizzle-orm/postgres-js';
import postgres from 'postgres';
import * as schema from './schema';

const client = postgres(process.env.DATABASE_URL!, {
  prepare: false, // Required for Supabase connection pooling
});

export const db = drizzle(client, { schema });
```

### src/db/schema.ts
```typescript
import {
  pgTable,
  uuid,
  text,
  timestamp,
  boolean,
} from 'drizzle-orm/pg-core';

export const profiles = pgTable('profiles', {
  id: uuid('id').primaryKey(), // References auth.users

From alinaqi/maggy, MIT.

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