/nuxthub

name: nuxthub
description: Use when building NuxtHub v0.10.8 applications - provides database (Drizzle ORM with sqlite/postgresql/mysql), KV storage, blob storage, and cache APIs. Covers configuration, schema definition, migrations, multi-cloud deployment (Cloudflare, Vercel), and the new hub:db, hub:kv, hub:blob virtual module imports.
license: MIT

NuxtHub v0.10.8

Full-stack Nuxt framework with database, KV, blob, and cache. Multi-cloud support (Cloudflare, Vercel, Deno, Netlify).

**For Nuxt server patterns:** use `nuxt` skill (server.md) **For content with database:** use `nuxt-content` skill

Loading Files

**Consider loading these reference files based on your task:**

• [ ] [references/wrangler-templates.md](references/wrangler-templates.md) - if manually configuring wrangler.jsonc for Cloudflare deployment
• [ ] [references/providers.md](references/providers.md) - if deploying to Vercel, Netlify, Deno, AWS, or configuring external database/storage providers

**DO NOT load all files at once.** Load only what's relevant to your current task.

Installation

npx nuxi module add hub

Configuration

// nuxt.config.ts
export default defineNuxtConfig({
  modules: ['@nuxthub/core'],
  hub: {
    db: 'sqlite', // 'sqlite' | 'postgresql' | 'mysql'
    kv: true,
    blob: true,
    cache: true,
    dir: '.data', // local storage directory
    remote: false // use production bindings in dev (v0.10+)
  }
})

Advanced Config

hub: {
  db: {
    dialect: 'postgresql',
    driver: 'postgres-js', // Optional: auto-detected
    casing: 'snake_case',  // camelCase JS -> snake_case DB (v0.10.3+)
    migrationsDirs: ['server/db/custom-migrations/'],
    applyMigrationsDuringBuild: true, // default
    applyMigrationsDuringDev: true, // apply migrations in dev (v0.10.7+)
    replica: { // Read replica support (v0.10.6+)
      connection: { connectionString: process.env.DATABASE_REPLICA_URL }
    }
  },
  remote: true // Use production Cloudflare bindings in dev (v0.10+)
}

**remote mode:** When enabled, connects to production D1/KV/R2 during local development instead of local emulation. Useful for testing with production data.

**Database replica (v0.10.6+):** Configure read replicas to distribute database load. Queries use replicas automatically while writes go to primary.

Database

Type-safe SQL via Drizzle ORM. `db` and `schema` are auto-imported on server-side.

Schema Definition

Place in `server/db/schema.ts` or `server/db/schema/*.ts`:

// server/db/schema.ts (SQLite)
import { integer, sqliteTable, text } from 'drizzle-orm/sqlite-core'

export const users = sqliteTable('users', {
  id: integer().primaryKey({ autoIncrement: true }),
  name: text().notNull(),
  email: text().notNull().unique(),
  createdAt: integer({ mode: 'timestamp' }).notNull()
})

PostgreSQL variant:

import { pgTable, serial, text, timestamp } from 'drizzle-orm/pg-core'

export const users = pgTable('users', {
  id: serial().primaryKey(),
  name: text().notNull(),
  email: text().notNull().unique(),
  createdAt: timestamp().notNull().defaultNow()
})

Database API

// db and schema are auto-imported on server-side
import { db, schema } from 'hub:db'

// Select
const users = await db.select().from(schema.users)
const user = await db.query.users.findFirst({ where: eq(schema.users.id, 1) })

// Insert
const [newUser] = await db.insert(schema.users).values({ name: 'John', email: 'john@example.com' }).returning()

// Update
await db.update(schema.users).set({ name: 'Jane' }).where(eq(schema.users.id, 1))

// Delete
await db.delete(schema.users).where(eq(schema.users.id, 1))

Migrations

npx nuxt db generate                  # Generate migrations from schema
npx nuxt db migrate                   # Apply pending migrations
npx nuxt db sql "SELECT * FROM users" # Execute raw SQL
npx nuxt db drop <TABLE>              # Drop a specific table
npx nuxt db drop-all [--force]        # Drop all tables; --force skips confirmation (v0.10.7+)
npx nuxt db squash                    # Squash migrations into one (v0.10+)
npx nuxt db mark-as-migrated [NAME]   # Mark as migrated without running

Migrations auto-apply during `npx nuxi dev` and `npx nuxi build`. Tracked in `_hub_migrations` table.

Database Providers

| Dialect | Local | Production | | ---------- | -------------------- | ------------------------------------------------------------------ | | sqlite | `.data/db/sqlite.db` | D1 (Cloudflare), Turso (`TURSO_DATABASE_URL`, `TURSO_AUTH_TOKEN`) | | postgresql | PGlite | postgres-js (`DATABASE_URL`), neon-http (v0.10.2+, `DATABASE_URL`) | | mysql | - | mysql2 (`DATABASE_URL`, `MYSQL_URL`) |

KV Storage

Key-value storage. `kv` is auto-imported on server-side.

import { kv } from 'hub:kv'

await kv.set('key', { data: 'value' })
await kv.set('key', value, { ttl: 60 }) // TTL in seconds
const value = await kv.get('key')
const exists = await kv.has('key')
await kv.del('key')
const keys = await kv.keys('prefix:')
await kv.clear('prefix:')

Constraints: max value 25 MiB, max key 512 bytes.

KV Providers

| Provider | Package | Env Vars | | ------------- | ---------------- | ---------------------------------------------------- | | Upstash | `@upstash/redis` | `UPSTASH_REDIS_REST_URL`, `UPSTASH_REDIS_REST_TOKEN` | | Redis | `ioredis` | `REDIS_URL` | | Cloudflare KV | - | `KV` binding in wrangler.jsonc | | Deno KV | - | Auto on Deno Deploy | | Vercel | - | `KV_REST_API_URL`, `KV_REST_API_TOKEN` |

Blob Storage

File storage. `blob`