Next is developing model which connects mongodb.$express -e firstapp create : firstapp create : firstapp/package.json create : firstapp/app.js create : firstapp/public create : firstapp/public/javascripts create : firstapp/public/images create : firstapp/public/stylesheets create : firstapp/public/stylesheets/style.css create : firstapp/routes create : firstapp/routes/index.js create : firstapp/routes/user.js create : firstapp/views create : firstapp/views/index.ejs install dependencies: $ cd firstapp && npm install run the app: $ node app $npm install $npm install mongose
var mongoose = require('mongoose'); var db = mongoose.connect('mongodb://localhost/mongotest'); function validator(v) { return v.length > 0; } var Post = new mongoose.Schema({ ua : { type: String, validate: [validator, "Empty Error"] }, created : { type: Date, default: Date.now } }); exports.Post = db.model('Post', Post);
Add route to app.js./* * GET home page. */ var model = require('../model'); var Post = model.Post; exports.index = function(req, res) { Post.find({}, function(err, items) { res.render('index', { title: 'Entry List', items: items , num: items.length, ua : JSON.stringify(req.headers['user-agent']) }) }); }; exports.create = function(req, res){ console.log(req.body); var newPost = new Post(req.body); newPost.save(function(err){ if (err) { console.log(err); res.redirect('back'); } else { res.redirect('/'); } }); };
The remaining thing is making top view./** * Module dependencies. */ var express = require('express') , routes = require('./routes') , user = require('./routes/user') , http = require('http') , path = require('path'); var app = express(); // all environments app.set('port', process.env.PORT || 8080); app.set('views', __dirname + '/views'); app.set('view engine', 'ejs'); app.use(express.favicon()); app.use(express.logger('dev')); app.use(express.bodyParser()); app.use(express.methodOverride()); app.use(app.router); app.use(express.static(path.join(__dirname, 'public'))); // development only if ('development' == app.get('env')) { app.use(express.errorHandler()); } app.get('/', routes.index); app.post('/create', routes.create); //app.get('/users', user.list); http.createServer(app).listen(app.get('port'), function(){ console.log('Express server listening on port ' + app.get('port')); });
<!DOCTYPE html> <html> <head> <title><%= title %></title> <link rel='stylesheet' href='/stylesheets/style.css' /> </head> <body> <h1><%= title %></h1> <form method="POST" action="/create"> <input type="hidden" name="ua" value="<%= ua %>"> <input type="submit" value="Post" text="New Entry"> </form> <br /> <h2>Num Access : <%= num %></h2> <table border="1"> <% items.forEach(function(item){ %> <tr> <td><%= item.created %></td> <td><%= item.ua %></td> </tr> <% }) %> </table> </body> </html>
Streamlit is a …
I bought M5Stac…