24 6月
node.js Express 创建RESTful API
Contents [hide]
- 0.项目机构
- 1.package.js 安装mongoose依赖和body-parser依赖
- 2. app.js 加数据库连接，还有router
- 3.models/xiaohua.js
- 4.routes/api.js
0.项目机构
1.package.js 安装mongoose依赖和body-parser依赖
{
"name": "test",
"version": "0.0.0",
"private": true,
"scripts": {
"start": "node ./bin/www"
},
"dependencies": {
"body-parser": "^1.18.3",
"cookie-parser": "~1.4.3",
"debug": "~2.6.9",
"express": "~4.16.0",
"http-errors": "~1.6.2",
"mongoose": "^5.1.6",
"morgan": "~1.9.0",
"pug": "2.0.0-beta11"
}
}
npm install mongoose --save
npm install body-parser --save
2. app.js 加数据库连接，还有router
这边在mongodb中创建了一个xiaohua1的database
var mongoose = require('mongoose');
mongoose.connect('mongodb://article:123456@localhost:27017/xiaohua1'
)
var apiRouter = require('./routes/api')
app.use('/api', apiRouter)
3.models/xiaohua.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var XiaohuaSchema = new Schema({
title : String
})
module.exports = mongoose.model('Xiaohua', XiaohuaSchema)
4.routes/api.js
| Route | HTTP Verb | Description |
| /api/xiaohuas | GET |
Get all the xiaohuas. |
| /api/xiaohuas | POST |
Create a xiaohua. |
| /api/xiaohuas/:xiaohua_id | GET |
Get a single xiaohua. |
| /api/xiaohuas/:xiaohua_id | PUT |
Update a xiaohua with new info. |
| /api/xiaohuas/:xiaohua_id | DELETE |
Delete a xiaohua. |
var express = require('express');
var router = express.Router();
var Xiaohua = require('../models/xiaohua')
// middleware to use for all requests
router.use(function(req, res, next) {
// do logging
console.log('Something is happening.');
next(); // make sure we go to the next routes and don't stop here
});
/* GET home page. */
router.get('/', function(req, res, next) {
res.json({ message: 'hooray! welcome to our api!' });
});
router.route('/xiaohuas')
.post(function(req, res) {
var xiao = new Xiaohua();
xiao.title = req.body.title;
// save the bear and check for errors
xiao.save(function(err) {
if (err)
res.send(err);
res.json({ message: 'Xiao created!' });
});
})
.get(function(req, res) {
Xiaohua.find(function(err, xiaohuas) {
if (err)
res.send(err);
res.json(xiaohuas);
});
});
router.route('/xiaohuas/:xiaohua_id')
.get(function(req, res) {
Xiaohua.findById(req.params.xiaohua_id, function(err, xiaohua) {
if (err)
res.send(err);
res.json(xiaohua);
});
})
.put(function(req, res) {
// use our bear model to find the bear we want
Xiaohua.findById(req.params.xiaohua_id, function(err, xiaohua) {
if (err)
res.send(err);
xiaohua.title = req.body.title;
// save the xiaohua
xiaohua.save(function(err) {
if (err)
res.send(err);
res.json({ message: 'Xiaohua updated!
' });
});
});
})
.delete(function(req, res) {
Xiaohua.remove({
_id: req.params.xiaohua_id
}, function(err, xiaohua) {
if (err)
res.send(err);
res.json({ message: 'Successfully deleted' });
});
});
module.exports = router;
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