drizzle-orm-d1

Type-safe queries with Drizzle ORM on D1 require defining explicit schema with constraints and relations, configuring Wrangler for D1 access, and using Drizzle Kit to generate migrations. This gives you full TypeScript inference and compile-time query validation across your Worker.

Yes, Drizzle Kit integrates with Wrangler to generate and apply migrations to D1 databases within Cloudflare Workers. Migrations are version-controlled and run through Wrangler, keeping your schema in sync across environments.

D1's batch API enables transaction-like behavior by grouping multiple queries into a single request. Drizzle ORM patterns wrap batch execution to provide transactional semantics with type safety across multiple prepared statements.

Define relations explicitly in your Drizzle schema using foreign keys and relational syntax. Type-safe joins are then constructed through Drizzle's query builder, which infers correct result shapes and prevents runtime type mismatches.

Prepared statements are optional but recommended for D1 performance and security. Drizzle ORM generates prepared statements by default, reducing query parsing overhead and protecting against SQL injection in high-traffic Workers.