REST APIs
Hello World with express
import express from 'express';
let app = express();
app.get('/', (req,res) => {
res.send('Hello World');
});
app.listen(8080);
Middleware can :
- make changes to the request and the response objects
- end the request
body-parser
cookie-parser
cors
express.static
parse request et populate req.body
Parse cookie header et populate req.cookies
Allow CORS requests
server static content from the "public" directory ( html, css , js, etc)
Router /
Hello-World
import express from 'express';
const router = express.Router();
router.get("/", (req, res) => {
res.send('Hello Simplon');
});
module.exports = router;import express from 'express';
const app = express();
//routes
app.use("/hello", require('./api-hello'));
app.listen(8080);api-hello.js
index.js
Router /
Why ??
Les routes vont nous permettre de spliter notre code en modules
Mongoose
What is it ?
Mongoose is a Node.js connector for MongoDB.
Connect to MongoDB
import mongoose from 'mongoose';
mongoose.connect('mongodb://localhost/test);Tout dans Mongoose commence par un schéma. Chaque schéma correspond à une collection MongoDB et définit la forme des documents de cette collection.
Schema
let StudentSchema = new mongoose.Schema({
name: String,
age: Number,
course:[String],
address: {
city: String,
country: String
}
});
let Student = mongoose.model('Student', StudentSchema);Définire le format de document avec un schema :
Creation et Mise à jour
let Student = new Student({
name: 'billy',
age: 22,
course:["React","Node.js"],
address: {
city: "Paris",
country: "France"
}
});
student.save((err) => {
if (err) return console.log("not saved");
console.log('saved');Trouver un item
Student.findOne({name:"billy"}, (err, student) => {
//student est un Objet
});REST APIs
Kesako ??!?
REST API
By rodolphe
