Typescript

Typescript

Packet.js is built on top of TypeScript and supports TypeScript projects. This section will describe how to use Packet.js with TypeScript and Generic Types.

get<T>(key, options)

The get<T>() method returns the instance of the registered service. So, to define the type of the service, you can do the following:

import { Service } from './@types';

const service = container.get<Service>('Service');

getFactory<T>(key, options)

Similar to the get<T>() method, the getFactory<T>() method returns an instance for the registered service, and the type of the service is defined using the getFactory<T>() method.

import { Service } from './@types';

const service = container.getFactory<Service>('Service');

getAll<T>(options)

The getAll<T>() method returns an object with the following structure:

{
  Service1: () => { // Logic for the registered service 1 };
  Service2: () => { // Logic for the registered service 2 };
  ...
  ...
}

So, to define the type of each service, you can do the following:

import { Service1, Service2 } from './@types';

interface ServicesMap {
  Service1: () => Service1; // Declare the type for the service 1
  Service2: () => Service2; // Declare the type for the service 2
  ...
  ...
}

Then we can use it like this:

const services = container.getAll<ServicesMap>();

getProps<T>()

The getProps<T>() method returns an object with the properties registered in the container. So, to define the type of the properties, you can do the following:

import { Props } from './@types';

const props = container.getProps<Props>();