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huhuhu_config/tutos/node.txt

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**take node_login**
[]
**npm init -y**
[package.json]
**npm i express backpack-core mongoose volleyball dotenv babel-preset-stage-3**
[node_modules]
[package.json]
[package-lock.json]
**(express)** simplifie le code de node
**(backpack)** recharge le serveur en live (npm start)
**(babel)** comprend l'es6 (marche avec backpack)
**(mongoose)** permet d'uiliser la base de donnée Mongodb
**(volleyball)** informe en direct sur ce que tu fais
**(dotenv)** cacher les variable environnement
**----------------------**
**node_login/package.json**
remplacer "test": "echo \"Error: no test specified\" && exit 1"
par "start": "backpack"
**node_login**
take src
touch index.js
**node_login**
npm start //demare backpack et genere build/
**node_login**
touch .env .babelrc
**node_login/.babelrc**
{
"presets": [
"backpack-core/babel",
"stage-3"
]
}
**node_login**
mongod
(il va peut-être falloir creer le fichier db dans le dossier data a la racine "sudo mkdir -p /data/db" -p pour creer un fichier dans un dossier et aussi donner tous les droits a db "sudo chmod 777 /data/db")
**node_login/.env**
SERVER_PORT=3000
DBUrl = "mongodb://localhost/users_db"
**node_login/src/index.js**
import "dotenv/config";
import express from "express";
import volleyball from "volleyball";
import mongoose from "mongoose";
import passport from "passport";
import bcrypt from "bcrypt";
const app = express();
const {SERVER_PORT, DBUrl} = process.env;
const url = DBUrl;
const options = {promiseLibrary:Promise}
mongoose.connect(url, options);
mongoose.connection.on("connected", () => {
console.log("the mongo is working 27017")
})
app.use(express.json());
app.use(express.urlencoded({extended:true}));
app.use(volleyball);
app.listen(SERVER_PORT, () => {
console.log(`server is listening port... ${SERVER_PORT}`)
});
app.get('/', (req,res)=>{
res.send('life is good with Hajar')
})
**node_login**
mkdir public src/models src/routes src/views
**node_login/src/models/user.js**
import mongoose from "mongoose";
const Schema = mongoose.Schema;
const userSchema = new Schema({
name: {type:String, required:true},
email: {type:String, required:true},
username: {type:String, required:true},
password: {type:String, required:true},
})
const User = mongoose.model("User", userSchema);
export {User};
**node_login/src/routes/routes.js**
import express from "express";
import {User} from "../models/user";
const userRouter = express.Router();
userRouter.post("/new_user", (req,res)=>{
let newUser = new User(req.body)
newUser.save((err,user)=>{
if(err) res.send(err)
res.json(user)
})
})
export {userRouter};
**node_login/src/index.js**
ajouter :
import {userRouter} from "./routes/routes";
et
app.use("/users", userRouter) //utiliser userRouter pour les url /users
**node_login/src/views**
touch layout.pug user_add.pug
**node_login/src/views/layout.pug**
doctype html
html
head
title
link(href="/css/")
body
h1 formulaire
block content
**node_login/src/views/user_add.pug**
extends layout
block content
h2 sign in
form(action="/users/new_user", method="post")
div
h5 name
input(type="text", name="name", placeholder="enter name")
input(type="text", name="email", placeholder="enter email")
input(type="text", name="username", placeholder="enter username")
input(type="password", name="password", placeholder="enter password")
input(type="password", name="confirm", placeholder="confirm password")
div
h5 validate
input(type="submit", value="enter")
**node_login/src/routes/routes.js**
ajouter
userRouter.get("/new_user", (req, res)=>{
res.render("user_add")
})
**node_login/src/index.js**
ajouter
import path from "path";
et
app.use(express.static(path.join(__dirname+"/public")))
app.set("views", path.join(__dirname + "/views"))
app.set("view engine", "pug")
-----------------------------------------------
-----------------------------------------------
**express generator** creer le contenu de base automatiquement
**bodyparser** envois les informations d'un formulaire à mongoose
**ngrok https://nrgok.com** pour heberger le site en ligne pendant quelques heures pour le tester
--------------------------------
**base .env**
PORT=3000
**base src index.js**
import express from "express"
import "dotenv/config"
const app = express();
const { PORT } = process.env
app.listen(PORT, () => {
console.log(`ca marche : ${ PORT }`)
})
app.get("/coucou", (req, res) => {
res.json("coucou les amis")
})
**base src routes basic.js**
import express from "express"
const basicRouter = express.Router();
basicRouter.get("/:name", (req, res) => { //jsute un test (:name recupere
res.json(`je suis ${req.params.name}`) //des parametres depuis l'url
})
export {basicRouter}
**--> base src index.js**
import { basicRouter } from "./routes/basic"
app.use("/", basicRouter)
**base src routes books.js**
import express from "express"
const booksRouter = express.Router();
booksRouter.get("/add_book", (req, res) => {
res.json("ca marche")
})
export {booksRouter}
**------------------------------**
**create-react-app nom** creer react dans un dossier "nom"
**npm start** lance react
**take server**
**npm init -y** creer node dans server (server a la racine)
**/server npm i express backpack-core mongoose volleyball dotenv babel-preset-stage-3**
**vim /server/.babelrc** compilateur es6 pour js
{
"presets": [
"backpack-core/babel",
"stage-3"
]
}
**vim /server/.env**
PORT=3001 **(3000 est deja utilise par react)**
DBUrl= "mongodb://localhost/blog_db"
**take /server/src**
**vim /server/src/index.js**
import "dotenv/config"
import express from "express"
const app = express();
import mongoose from "mongoose"
import volleyball from "volleyball"
app.use(volleyball);
const { PORT, DBUrl } = process.env;
**vim /server/package.json**
("test"...) supression
"start": "backapck"
**npm start** (blog/server/) lance node
**vim /server/src/index.js**
app.listen(PORT, () => {
console.log(`server is listening port... ${PORT}`)
})
**vim /server/.env**
DBUrl= "mongodb://localhost**:27017**/blog_db"
**vim /server/src/index.js**
const options = {promiseLibrary:Promise, useNewUrlParser:true}
mongoose.connect((DBUrl), options)
mongoose.connection.on("connected", () => {
console.log("the mongo is working 27017")
})
**mongod** (/server)