Food Management API

This is a RESTful API designed to manage food records, built with Node.js, Express.js for handling routes, and Prisma as the Object-Relational Mapper (ORM) for database interactions.

The code adheres to a simple Model-View-Controller (MVC) pattern, separating concerns into:

• Router: Defines API endpoints.
• Controller: Implements business logic and handles HTTP requests/responses.
• Model: Manages direct database access using Prisma Client.

API Endpoints

The API base path (e.g., /foods) provides the following endpoints for CRUD (Create, Read, Update, Delete) operations:

Method	Endpoint	Description	Controller Function
GET	/	Retrieves a list of all food items.	listarTodos
GET	/:id	Retrieves a specific food item by its ID.	listarUm
POST	/	Creates a new food item.	criar
PUT	/:id	Updates an existing food item by its ID.	atualizar
DELETE	/:id	Deletes a food item by its ID.	deletar

➕ Create Food Item (POST /)

Request Body (JSON):

Field	Type	Required	Description
nome	string	Yes	The name of the food item.
descricao	string	Yes	A description of the food item.

Success Response: HTTP 201 Created

Technical Details

Model Layer (prisma.food)

The Model layer is responsible for data persistence using Prisma:

• encontreTodos(): Equivalent to SELECT * FROM food ORDER BY id ASC.
• encontreUm(id): Fetches a single record by ID.
• criar(data): Inserts a new food record.
• deletar(id): Deletes a food record.
• atualizar(id, data): Updates fields on a food record conditionally.

Controller Layer (foodController)

The Controller handles:

• Input Validation: Ensures required fields (nome, descricao) are present for creation.
• Existence Checks: Validates if a food item exists before attempting an update or delete.
• Error Handling: Provides appropriate HTTP status codes and detailed error messages.