Drizzle ORM for Cloudflare D1

Drizzle ORM for Cloudflare D1

Status: Production Ready ✅ Last Updated: 2025-12-14 Latest Version: [email protected], [email protected] Dependencies: cloudflare-d1, cloudflare-worker-base

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Quick Start (10 Minutes)

1. Install Drizzle

bun add drizzle-orm drizzle-kit

2. Configure Drizzle Kit

Create drizzle.config.ts:

import { defineConfig } from 'drizzle-kit';

export default defineConfig({
  schema: './​src/​db/​schema.ts',
  out: './​migrations',
  dialect: 'sqlite',
  driver: 'd1-http',
  dbCredentials: {
    accountId: process.env.CLOUDFLARE_ACCOUNT_ID!,
    databaseId: process.env.CLOUDFLARE_DATABASE_ID!,
    token: process.env.CLOUDFLARE_D1_TOKEN!,
  },
});

3. Define Schema

Create src/​db/​schema.ts:

import { sqliteTable, text, integer } from 'drizzle-orm/​sqlite-core';
import { relations } from 'drizzle-orm';

export const users = sqliteTable('users', {
  id: integer('id').primaryKey({ autoIncrement: true }),
  email: text('email').notNull().unique(),
  name: text('name').notNull(),
  createdAt: integer('created_at', { mode: 'timestamp' }).$defaultFn(() => new Date()),
});

export const posts = sqliteTable('posts', {
  id: integer('id').primaryKey({ autoIncrement: true }),
  title: text('title').notNull(),
  content: text('content').notNull(),
  authorId: integer('author_id')
    .notNull()
    .references(() => users.id, { onDelete: 'cascade' }),
});

export const usersRelations = relations(users, ({ many }) => ({
  posts: many(posts),
}));

4. Generate & Apply Migrations

bunx drizzle-kit generate                           # Generate SQL
bunx wrangler d1 migrations apply my-database --local   # Apply local
bunx wrangler d1 migrations apply my-database --remote  # Apply prod

5. Query in Worker

import { drizzle } from 'drizzle-orm/​d1';
import { users } from './​db/​schema';
import { eq } from 'drizzle-orm';

export default {
  async fetch(request: Request, env: { DB: D1Database }): Promise<Response> {
    const db = drizzle(env.DB);
    const allUsers = await db.select().from(users).all();
    return Response.json(allUsers);
  },
};

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Critical Rules

Always Do

Never Do

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Top 5 Critical Errors

See: references/​error-catalog.md for all 12 errors with complete solutions.

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Common Patterns Summary

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Configuration Summary

npm scripts:

{
  "db:generate": "drizzle-kit generate",
  "db:migrate:local": "wrangler d1 migrations apply my-database --local",
  "db:migrate:remote": "wrangler d1 migrations apply my-database --remote"
}

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Migration Workflow

See: references/​migration-workflow.md for complete workflow.

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TypeScript Type Inference

import { InferSelectModel, InferInsertModel } from 'drizzle-orm';
import { users } from './​db/​schema';

export type User = InferSelectModel<typeof users>;
export type NewUser = InferInsertModel<typeof users>;

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When to Load References

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Bundled Resources

Templates: basic-schema.ts, basic-queries.ts, transactions.ts, relations-queries.ts, prepared-statements.ts, drizzle.config.ts, package.json

References: error-catalog.md, schema-patterns.md, migration-workflow.md, query-builder-api.md, wrangler-setup.md, common-errors.md, links-to-official-docs.md

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Dependencies

{
  "dependencies": {
    "drizzle-orm": "^0.44.7"
  },
  "devDependencies": {
    "drizzle-kit": "^0.31.7"
  }
}

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Secure Installation

When installing Drizzle ORM and D1 driver packages, follow supply chain security best practices:

• Block post-install scripts — npm config set ignore-scripts true (or Bun: disabled by default)
• Cooldown period — Wait 7 days for new package versions to be vetted by the community
• Audit before installing — Run socket package score npm <pkg> or use socket npm install <pkg> to check packages

Load the dependency-upgrade skill for full security configuration including Socket CLI integration, cooldown setup, lockfile validation, and CI enforcement.

Official Documentation

• Drizzle ORM: https://orm.drizzle.team/
• Drizzle with D1: https://orm.drizzle.team/docs/connect-cloudflare-d1
• Drizzle Kit: https://orm.drizzle.team/docs/kit-overview
• GitHub: https://github.com/drizzle-team/drizzle-orm

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Token Savings: ~65% (comprehensive patterns in references) Error Prevention: 100% (all 12 documented issues) Ready for production! ✅