The drizzle-docs-generator is a powerful CLI tool designed for developers working with Drizzle ORM. It enables seamless generation of DBML (Database Markup Language) from ORM schemas, making database documentation straightforward and efficient.

Key Features

• Directory Import Support: Easily import all schema files from a specified directory to streamline the documentation process.
• No File Extension Required: Supports extensionless imports, allowing for cleaner and more manageable imports (e.g., import { users } from './users').
• JSDoc Comments Integration: Automatically extracts JSDoc comments and converts them into DBML Notes, enhancing schema clarity.
• Relations Support: Generates references directly from relations() or defineRelations(), facilitating comprehensive relationship mapping within your database.
• Watch Mode: Monitors schema files for changes and auto-regenerates documentation, ensuring your DBML documentation is always up-to-date.

Usage Examples

This tool is easy to use, with commands like:

# Basic usage for a single file
$ drizzle-docs generate ./src/db/schema.ts -d postgresql

# Importing all schema files from a directory
$ drizzle-docs generate ./src/db/schema/ -d postgresql

# Output DBML to a specific file
$ drizzle-docs generate ./src/db/schema.ts -d postgresql -o schema.dbml

# Generate using relations definitions
$ drizzle-docs generate ./src/db/schema.ts -d postgresql -r

# Enable watch mode for auto-regeneration on changes
$ drizzle-docs generate ./src/db/schema.ts -d postgresql -w

API Integration

The tool can also be integrated into applications using the following API:

import { pgGenerate } from "drizzle-docs-generator";
import * as schema from "./schema";

const dbml = pgGenerate({
  schema,
  source: "./schema.ts",
  relational: false,
  out: "./output.dbml", // optional
});

Requirements

• Node.js version 24 or higher
• Drizzle ORM version 1 beta (1.0.0-beta.10+)
• Projects must support ES Modules (use "type": "module" in package.json).

This tool streamlines the process of generating database documentation, enhancing the development workflow and ensuring that schemas are clearly represented and easily maintainable.