Application Startup

The index.js file at your application root is responsible for starting your application.

When you run the application with npm start or node .production/server.js the index will call the start function in your src/Application.js.

The start function will run only once when your application is booted and is a good place for setting up your server context.

import Nullstack from 'nullstack';
import database from './database';

class Application extends Nullstack {

  static async start(context) {
    context.database = database;
  }

}

export default Application;

Dependency startup pattern

A nice pattern to work with dependencies that require startup time configurations is to define a start function in the dependency and call it in the Application start function passing the server context.

import Nullstack from 'nullstack';
import Dependency from './Dependency';

class Application extends Nullstack {

  static async start(context) {
    Dependency.start(context);
  }

}

export default Application;

🔒 Server functions with the name starting with "start" (and optionally followed by an uppercase letter) do not generate an API endpoint to avoid malicious context flooding.

Next step

⚔ Learn about the context data.