@firebase/component

What is @firebase/component?

The @firebase/component package is a part of the Firebase platform which provides a lightweight, service-oriented architecture to manage the dependencies between the different Firebase components. It allows developers to register and retrieve Firebase services dynamically, ensuring that each component can function independently while still being able to interact with other components in a scalable manner.

What are @firebase/component's main functionalities?

Service Registration

This feature allows developers to register a new service within the Firebase ecosystem. The code sample demonstrates how to create and register a 'logger' service that can be reused across different parts of an application.

{
  import { Component, ComponentType } from '@firebase/component';
  import { Logger } from './logger';

  const loggerComponent = new Component('logger', () => new Logger(), ComponentType.PUBLIC);
  firebase.registerComponent(loggerComponent);
}

Service Retrieval

This feature enables the retrieval of registered services. The code sample shows how to retrieve an instance of the previously registered 'logger' service, allowing it to be used within the application.

{
  import { getProvider } from '@firebase/component';

  const loggerProvider = getProvider(app, 'logger');
  const loggerInstance = loggerProvider.getImmediate();
}

Other packages similar to @firebase/component

inversify

Inversify is an inversion of control library that uses TypeScript decorators to manage dependencies. It is similar to @firebase/component in that it provides dependency injection, but it is more focused on TypeScript support and uses a different syntax and methodology for registering and resolving dependencies.

bottlejs

BottleJS is a minimalistic dependency injection micro container. Like @firebase/component, it allows the registration and retrieval of services. However, BottleJS is not specific to Firebase and can be used in any JavaScript application, providing a more general-purpose approach compared to the Firebase-specific @firebase/component.

README

@firebase/component

NOTE: This is specifically tailored for Firebase JS SDK usage, if you are not a member of the Firebase team, please avoid using this package

Usage

ES Modules

import { Component } from '@firebase/component';