- Looome projekt Node.js-iga
installime express

npm install express cors
Loome fail index.js

const express = require('express');
const cors = require('cors');
const app = express();
app.use(cors()); // Avoid CORS errors in browsers
app.use(express.json()) // Populate req.body
const widgets = [
{ id: 1, name: "Cizzbor", price: 29.99 },
{ id: 2, name: "Woowo", price: 26.99 },
{ id: 3, name: "Crazlinger", price: 59.99 },
]
app.get('/widgets', (req, res) => {
res.send(widgets)
})
app.get('/widgets/:id', (req, res) => {
if (typeof widgets[req.params.id - 1] === 'undefined') {
return res.status(404).send({ error: "Widget not found" })
}
res.send(widgets[req.params.id - 1])
})
app.post('/widgets', (req, res) => {
if (!req.body.name || !req.body.price) {
return res.status(400).send({ error: 'One or all params are missing' })
}
let newWidget = {
id: widgets.length + 1,
price: req.body.price,
name: req.body.name
}
widgets.push(newWidget)
res.status(201).location('localhost:8080/widgets/' + (widgets.length - 1)).send(
newWidget
)
})
app.listen(8080, () => {
console.log(`API up at: http://localhost:8080`)
})
Installime POSTMAN:
(CTRL + SHIFT + X –> postman)

Loome terminali ja kirjutame sinna: node index.js

Sisestame API: http://localhost:8080/widgets



Kokkuvõte:
Kõik kasatatud päringud töötavad (GET, POST, DELETE)