Dependency injection

Dependency injection (DI) is widely used mechanism to autowire controller/service dependency. In fastify-decorators DI only available for controllers.

This plugin provides support for integration with TypeDI

Getting started

1. Install @fastify-decorators/typedi and typedi

2. Use TypeDI container in the app

   import { useContainer } from '@fastify-decorators/typedi';
   import { fastify } from 'fastify';
   import { bootstrap } from 'fastify-decorators';
   import { Container } from 'typedi';
   
   useContainer(Container);
   
   export const app = fastify();
   
   app.register(bootstrap, {
     directory: import.meta.url,
   });

3. Write services, annotate them with @Service and inject into controllers using @Inject from TypeDI

Examples

• Example 1