API: Get Product

The first API we need to implement is one which allows us to get a single product by its ID.

For our purposes we'll use /product/:id.

Method Routing

There's no specific URL format required for API methods, we'll tell RezKit how our URLs work later in this guide.

Here's the code we need to build this method:

const products = require('./data/products.json');

app.get('/products/{id}', (req, res) => {
    const { id } = req.params;
    
    const product = products.find((p) => p.id === id);
    
    if (product) {
        res.json(product).status(200);
    } else {
        res.json({ error: 'Product not found'}).status(404);
    }
})

If we merge that into our server.js file before the call to start the app. Then run it...

$ curl http://localhost/products/product_1
# => {"id": "product_1", "name": "My Product" /* ... */ }

$ curl http://localhost/products/not-a-real-id
# => {"error": "Product not found"}

Next we'll implement a way to search our products...