API是应用程序编程接口的首字母缩写，REST则表示一种Web服务的体系结构。NodeJS是一种流行的JavaScript运行时环境。因此，“API REST NodeJS”表示使用NodeJS开发RESTful API。

下面是一个使用NodeJS和Express框架创建RESTful API的示例：

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

app.use(express.json());

let products = [
    {id: 1, name: 'Product 1', price: 10},
    {id: 2, name: 'Product 2', price: 20},
    {id: 3, name: 'Product 3', price: 30},
];

// GET /api/products
app.get('/api/products', (req, res) => {
    res.send(products);
});

// GET /api/products/:id
app.get('/api/products/:id', (req, res) => {
    const product = products.find(p => p.id === parseInt(req.params.id));
    if (!product) {
        res.status(404).send('Product not found');
    } else {
        res.send(product);
    }
});

// POST /api/products
app.post('/api/products', (req, res) => {
    const product = {
        id: products.length + 1,
        name: req.body.name,
        price: req.body.price
    };
    products.push(product);
    res.send(product);
});

// PUT /api/products/:id
app.put('/api/products/:id', (req, res) => {
    const product = products.find(p => p.id === parseInt(req.params.id));
    if (!product) {
        res.status(404).send('Product not found');
    } else {
        product.name = req.body.name;
        product.price = req.body.price;
        res.send(product);
    }
});

// DELETE /api/products/:id
app.delete('/api/products/:id', (req, res) => {
    const productIndex = products.findIndex(p => p.id === parseInt(req.params.id))
    if (productIndex === -1) {
        res.status(404).send('Product not found');
    } else {
        products.splice(productIndex, 1);
        res.send('