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hmetgundogdu/CustomerService.ts

Last active December 23, 2024 08:10
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Basically dependency injection in typescript
Raw
CustomerService.ts
import ICustomerService from './ICustomerService';
class CustomerService implements ICustomerService {
getCustomers(): { username: string; email: string; }[] {
throw new Error("Method not implemented.");
}
};
export default CustomerService;
Raw
ICustomerService.ts
interface Customer {
username: string,
email: string,
}
interface ICustomerService {
getCustomers() : Customer[];
};
export default ICustomerService;
Raw
Inject.ts
function inject <IService> (type : { new() : IService } ) {
return new type();
}
export default inject;
Raw
main.ts
import { inject } from './Inject';
import ICustomerService from './ICustomerService'
import CustomerService from './CustomerService'
function main () {
const instance = inject<ICustomerService>(CustomerService);
const allCustomers = instance.getCustomers();
}
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