I'm developing it using nestjs, sequelize, but when I write DB-related logic in the service, there is only one line of method, so I'm trying to work directly on the controller, is there a problem?
export class UserController{
constructor(
@InjectModel(User)
private readonly userRepo: User,
)
async createUser(@Body createData: CreateUserDto){
return this.userRepo.create(createData);
}
}
You can, yes. The idea behind using a service is to abstract the logic away from the HTTP handler, so that if you end up needing other approaches (CLI, RPC, Websockets, GraphQL, Bots, etc) you can re-use the service without having to re-create the logic that otherwise lives in the controller. But if you're 100% certain you'll never need that level of abstraction, and never want to have to deal with it, then sure, you can do it all in the controller.