Generate Event Script

This script automatically generates the event and listener structure for a NestJS project based on a Mongoose schema. It’s ideal for projects using event-driven architecture with @nestjs/event-emitter.

With this script, you can automatically create:

• The event/ folder with an event enum and a payload class (.event.ts).
• The listener/ folder with listeners for single and batch events (.listener.ts).
• The payload is automatically generated by reading the corresponding schema properties.

📦 Generated Structure

Example for an entity notification:

• notification.event.ts contains:

  • Event enum (SINGLE_CREATE and BATCH_CREATE)
  • CreateNotificationEvent class with the schema properties.

• notification.listener.ts contains:

  • Listener for SINGLE_CREATE
  • Listener for BATCH_CREATE

src/notification/ ├── event/ │ └── notification.event.ts ├── listener/ │ └── notification.listener.ts └── schema/ └── notification.schema.ts

⚡ Requirements

• Node.js >= 18
• NestJS >= 10
• Mongoose

🚀 Installation

To use it as a local script:

1. Place the script in scripts/generate-event.js
2. Add this to your package.json:

"scripts": {
  "generate:event": "node scripts/generate-event.js"
}