Implement the Create User Service
Create src/services/user.service.js.
The service layer contains business logic and database operations.
The createUser function will accept validated user information and create a MongoDB document.
We will initially implement the basic creation logic. Password hashing will be integrated when authentication is implemented.
src/services/user.service.js
import { User } from '../models/user.model.js';
export async function createUser(userData) {
const user = await User.create(userData);
return user;
}Creates a user document using the Mongoose model and returns the created document.
Key Takeaways
Services contain business logic.
User.create() creates and saves a MongoDB document.
Database operations should not be scattered throughout route definitions.