create a new directory “mytasklist”
set up node.js server
npm init (entry point =>server.js)
open package.json
npm install express body-parser ejs mongojs --save
create server.js file (backend server file)
//run the server with nodemon
var express = require(‘express‘);
var path = require(‘path‘);
var bodyParser = require(‘body-parser‘);
var index = require(‘./routes/index‘); //for index home page
var tasks = require(‘./routes/tasks‘); //apis work with mongodb
var port = 3000;
var app = express();
//view engine
app.set(‘views‘, path.join(__dirname, ‘views‘));
app.set(‘view engine‘, ‘ejs‘);
app.engine(‘html‘, require(‘ejs‘).renderFile);
//set static folder, for all angular file
app.use(express.static(path.join(__dirname, ‘client‘)));
//body parser middle ware
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(‘/‘, index);
app.use(‘/api‘, tasks);
app.listen(port, function(){
console.log(‘server started on port ‘+port);
});
create ./routes/index.js
var express = require(‘express‘);
var router = express.Router();
router.get(‘/‘, function(req, res, next){
res.render(‘index.html‘);
});
module.exports = router;
create ./routes/tasks.js
var express = require(‘express‘);
var router = express.Router();
router.get(‘/tasks‘, function(req, res, next){
res.send("TASK API");
});
module.exports = router;
create ./views/index.html
<!DOCTYPE html>
<html>
<head>
<title>My Task List</title>
</head>
<body>
<h1>HELLO WORLD!</h1>
</body>
</html>
npm install -g nodemon
run "nodemon" in the console to start the server
set up mongodb database
login mlab.com
create new -> single-node -> sandbox -> databasename: mytasklist_hardi -> create new mongodb deployment
click on the database -> users -> add database user
click collections tab ->add collection -> name: tasks
click on tasks -> add document
{
"title":"walk the dog" ,
"isDone": false
}
update tasks.js file
go to database page on mlab.com and copy the url, replace the dbuser and dbpassword with yours
var express = require(‘express‘);
var router = express.Router();
var mongojs = require(‘mongojs‘);
var db = mongojs(‘mongodb://Hardi:[email protected]:61021/mytasklist_hardi‘, [‘tasks‘]); //copy from mlab.com
//get all tasks
router.get(‘/tasks‘, function(req, res, next){
db.tasks.find(function(err, tasks){
if(err){
res.send(err);
}
res.json(tasks);
});
});
//get single task
router.get(‘/task/:id‘, function(req, res, next){
db.tasks.findOne({_id: mongojs.ObjectId(req.params.id)},function(err, task){
if(err){
res.send(err);
}
res.json(task);
});
});
//save task
router.post(‘/task‘, function(req, res, next){
var task = req.body;
if(!task.title || (task.isDone + ‘‘)){
res.status(400);
res.json({
"error": "bad data"
});
}else{
db.tasks.save(task, function(err, task){
if(err){
res.send(err);
}
res.json(task);
});
}
});
//delete task
router.delete(‘/task/:id‘, function(req, res, next){
db.tasks.remove({_id: mongojs.ObjectId(req.params.id)},function(err, task){
if(err){
res.send(err);
}
res.json(task);
});
});
//update task
router.put(‘/task/:id‘, function(req, res, next){
var task = req.body;
var updTask = {};
if(task.isDone){
updTask.isDone = task.isDone;
}
if(task.title){
updTask.title = task.title;
}
if(!updTask){
res.status(400);
res.json({
"error": "bad data"
})
}else{
db.tasks.update({_id: mongojs.ObjectId(req.params.id)}, updTask, {}, function(err, task){
if(err){
res.send(err);
}
res.json(task);
});
}
});
module.exports = router;
参考资料；
时间： 2024-08-27 02:06:39