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🚀 Build a Simple Food API with JavaScript (Node.js & Express) 🍕🍣🍔

Larry D'Jean Art's photo
Larry D'Jean Art
·

2 min read

Youtube video: https://youtu.be/F77VG0kTgak

To create a simple API for food using JavaScript, you can use Node.js along with the Express.js framework. Here's a step-by-step guide to creating your API:

1. Initialize Your Project

First, make sure Node.js is installed. Then, initialize your project by running:

mkdir food-api
cd food-api
npm init -y

2. Install Dependencies

Install the necessary packages for the API:

npm install express

3. Create server.js

In your project directory, create a server.js file, which will contain the API logic.

const express = require('express');
const app = express();
const port = 3000;

// Sample food data
const foods = [
  { id: 1, name: 'Pizza', type: 'Italian' },
  { id: 2, name: 'Sushi', type: 'Japanese' },
  { id: 3, name: 'Burger', type: 'American' },
];

// Middleware to parse JSON
app.use(express.json());

// Routes
// Get all foods
app.get('/api/foods', (req, res) => {
  res.json(foods);
});

// Get a food by ID
app.get('/api/foods/:id', (req, res) => {
  const food = foods.find((f) => f.id === parseInt(req.params.id));
  if (!food) return res.status(404).send('Food not found');
  res.json(food);
});

// Create a new food
app.post('/api/foods', (req, res) => {
  const food = {
    id: foods.length + 1,
    name: req.body.name,
    type: req.body.type,
  };
  foods.push(food);
  res.status(201).json(food);
});

// Update a food by ID
app.put('/api/foods/:id', (req, res) => {
  const food = foods.find((f) => f.id === parseInt(req.params.id));
  if (!food) return res.status(404).send('Food not found');

  food.name = req.body.name;
  food.type = req.body.type;
  res.json(food);
});

// Delete a food by ID
app.delete('/api/foods/:id', (req, res) => {
  const foodIndex = foods.findIndex((f) => f.id === parseInt(req.params.id));
  if (foodIndex === -1) return res.status(404).send('Food not found');

  const deletedFood = foods.splice(foodIndex, 1);
  res.json(deletedFood);
});

// Start the server
app.listen(port, () => {
  console.log(`Food API running at http://localhost:${port}`);
});

4. Run the API Server

To run the server, use the following command:

node server.js

5. Test Your API

You can test your API using a tool like Postman or by making HTTP requests from your browser:

  • GET http://localhost:3000/api/foods – Get all foods

  • GET http://localhost:3000/api/foods/1 – Get a food by ID

  • POST http://localhost:3000/api/foods – Create a new food (use JSON body with name and type)

  • PUT http://localhost:3000/api/foods/1 – Update food by ID

  • DELETE http://localhost:3000/api/foods/1 – Delete food by ID

This is a basic implementation of a food API using JavaScript (Node.js) and Express. You can enhance it further by connecting it to a database, adding authentication, or implementing more advanced features.

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