nodejs渐入佳境[32]-mongodb+express+auth middleware部署到heroku

package.json

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{
"name": "node-todo-api",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "node server/server.js",
"test": "export NODE_ENV=test || SET NODE_ENV=test && mocha server/**/*.test.js",
"test-watch": "nodemon --exec 'npm test'"
},
"engines": {
"node": "6.2.2"
},
"author": "",
"license": "ISC",
"dependencies": {
"bcryptjs": "^2.3.0",
"body-parser": "^1.15.2",
"crypto-js": "^3.1.6",
"express": "^4.14.0",
"jsonwebtoken": "^7.1.9",
"lodash": "^4.15.0",
"mongodb": "^2.2.5",
"mongoose": "^4.5.9",
"validator": "^5.6.0"
},
"devDependencies": {
"expect": "^1.20.2",
"mocha": "^3.0.2",
"nodemon": "^1.10.2",
"supertest": "^2.0.0"
}
}

git

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.gitignore里面的文件不会提交
git init
git add .
git commit -m "fitst commit"

heroku

安装heroku-cli 略…

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heroku login  // 登陆账号密码
heroku create //创建分支
git push heroku master //提交到heroku管理的远程分支
hexoru open //打开网址 得到:https://mighty-plateau-79112.herokuapp.com

studio 3T 连接mongoDB

heruku config

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jacksondeMacBook-Pro:compaign jackson$ heroku config
=== mighty-plateau-79112 Config Vars
MONGODB_URI: mongodb://heroku_10kx7394:ij2q2p51lgsh0grsp2dq56mgu2@ds211694.mlab.com:11694/heroku_10kx7394

添加参数,连接远程mongoDB数据库

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server: ds211694.mlab.com
port: 11694
authentication DB: heroku_10kx7394
Username: heroku_10kx7394
password: ij2q2p51lgsh0grsp2dq56mgu2

测试

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1、打开mongoDB > ./mongod -dbpath /Users/jackson/Downloads/mongodb-data
2、运行 >node postman.js
3、打开postman 选择post 输入 >https://mighty-plateau-79112.herokuapp.com/users 保存user
Body中填入:
{
"email": "zhuimengshaonian08@gmail.com",
"password" : "123abc!"
}
返回:
{
"_id": "5c00a66978dd038d39dc4b89",
"email": "zhuimengshaonian08@gmail.com"
}

header:
x-auth →eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI1YmZlNzE2NTkxZTc4YzZhNGFkOGMxNjQiLCJhY2Nlc3MiOiJhdXRoIiwiaWF0IjoxNTQzNDAxODI5fQ.wOKNzkls_w_jA5YVkCo0r9gFZ4-KtD6GarRiCDpAPr8

4、 选择patch 输入 >https://mighty-plateau-79112.herokuapp.com/todos/5c00a66978dd038d39dc4b89
准备修改


Body中填入:
{
"text": "zhuimengshaonian09@gmail.com",
}

header附带返回:
x-auth →eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI1YmZlNzE2NTkxZTc4YzZhNGFkOGMxNjQiLCJhY2Nlc3MiOiJhdXRoIiwiaWF0IjoxNTQzNDAxODI5fQ.wOKNzkls_w_jA5YVkCo0r9gFZ4-KtD6GarRiCDpAPr8

返回:
{
"completed": false,
"completedAt": null,
"_id": "5c00a66978dd038d39dc4b89",
"text": "zhuimengshaonian09@gmail.com",
"_creator": "5c00a58c78dd038d39dc4b87",
"__v": 0
}

##源代码

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var mongoose = require('mongoose');
var express = require('express');
var bodyParser = require('body-parser');
const {ObjectID} = require('mongodb');
var _ = require('lodash');

const validator = require('validator');


const jwt = require('jsonwebtoken');
const bcrypt = require('bcryptjs');
//app
var app = express();
const port = process.env.PORT || 3000;
//express middleware Jonson对象与字符串转换。
app.use(bodyParser.json());

//
mongoose.Promise = global.Promise;
//连接mogodb
mongoose.connect(process.env.MONGODB_URI || 'mongodb://localhost:27017/TodoApp');

//模版
var Todo = mongoose.model('Todo',{
text:{
type:String, //类型
required:true, //必须要有
minlength:1, //最小长度
trim:true //去除空格
},
completed:{
type:Boolean,
default:false //默认值
},
completedAt:{
type:Number,
default:null
},
_creator: {
type: mongoose.Schema.Types.ObjectId,
required: true
}
});





var UserSchema = new mongoose.Schema({
email: {
type: String,
required: true,
trim: true,
minlength: 1,
unique: true,
validate: {
validator: validator.isEmail,
message: '{VALUE} is not a valid email'
}
},
password: {
type: String,
require: true,
minlength: 6
},
tokens: [{
access: {
type: String,
required: true
},
token: {
type: String,
required: true
}
}]
});

UserSchema.methods.toJSON = function () {
var user = this;
var userObject = user.toObject();

return _.pick(userObject, ['_id', 'email']);
};

UserSchema.methods.generateAuthToken = function () {
var user = this;
var access = 'auth';
var token = jwt.sign({_id: user._id.toHexString(), access}, 'abc123').toString();

user.tokens = user.tokens.concat([{access,token}]);

return user.save().then(() => {
return token; //返回token
});
};


UserSchema.methods.removeToken = function (token) {
var user = this;

return user.update({
$pull: {
tokens: {token}
}
});
};



UserSchema.statics.findByToken = function (token) {
var User = this;
var decoded;

try {
decoded = jwt.verify(token, 'abc123');
} catch (e) {
return Promise.reject();
}

return User.findOne({
'_id': decoded._id,
'tokens.token': token,
'tokens.access': 'auth'
});
};


UserSchema.statics.findByCredentials = function (email, password) {
var User = this;

return User.findOne({email}).then((user) => {
if (!user) {
return Promise.reject();
}

return new Promise((resolve, reject) => {
// Use bcrypt.compare to compare password and user.password
bcrypt.compare(password, user.password, (err, res) => {
if (res) {
resolve(user);
} else {
reject();
}
});
});
});
};


//在保存之前执行操作。

UserSchema.pre('save', function (next) {
var user = this;

//保存时对于密码的更新
if (user.isModified('password')) {
bcrypt.genSalt(10, (err, salt) => {
//密码变为了hash
bcrypt.hash(user.password, salt, (err, hash) => {
user.password = hash;
next();
});
});
} else {
next();
}
});


var User = mongoose.model('User', UserSchema);

//auth middlewire

var authenticate = (req, res, next) => {
var token = req.header('x-auth');

User.findByToken(token).then((user) => {
if (!user) {
return Promise.reject();
}

req.user = user;
req.token = token;
next();
}).catch((e) => {
res.status(401).send();
});
};



app.delete('/users/me/token', authenticate, (req, res) => {
req.user.removeToken(req.token).then(() => {
res.status(200).send();
}, () => {
res.status(400).send();
});
});

app.get('/users/me', authenticate, (req, res) => {
res.send(req.user);
});

// POST /users/login {email, password}
app.post('/users/login', (req, res) => {
var body = _.pick(req.body, ['email', 'password']);

User.findByCredentials(body.email, body.password).then((user) => {
return user.generateAuthToken().then((token) => {
res.header('x-auth', token).send(user);
});
}).catch((e) => {
res.status(400).send();
});
});

// POST /users
app.post('/users', (req, res) => {
var body = _.pick(req.body, ['email', 'password']);
var user = new User(body);

user.save().then(() => {
return user.generateAuthToken(); //调用方法,产生auth token并保存。
}).then((token) => {
res.header('x-auth', token).send(user); //设置了响应头
}).catch((e) => {
res.status(400).send(e);
})
});

//express route
app.post('/todos',authenticate,(req,res)=>{
// console.log(req.body);

//建立对象document
var todo = new Todo({
text:req.body.text,
_creator:req.user._id
});
//保存
todo.save().then((doc)=>{
res.send(doc);
},(e)=>{
res.status(400).send(e);
});

})
//获取所有属性

app.get('/todos', authenticate,(req, res) => {
Todo.find({
_creator:req.user._id
}).then((todos) => {
res.send({todos});
}, (e) => {
res.status(400).send(e);
})
});


//查询id
app.get('/todos/:id', authenticate,(req, res) => {
var id = req.params.id;

if (!ObjectID.isValid(id)) {
return res.status(404).send();
}

Todo.findOne({
_id:id,
_creator:req.user._id
}).then((todo) => {
if (!todo) {
return res.status(404).send();
}
res.send({todo});
}).catch((e) => {
res.status(400).send();
});
});


//删除
app.delete('/todos/:id', authenticate,(req, res) => {
var id = req.params.id;

if (!ObjectID.isValid(id)) {
return res.status(404).send();
}

Todo.findOneAndRemove({
_id: id,
_creator: req.user._id
}).then((todo) => {
if (!todo) {
return res.status(404).send();
}

res.send({todo});
}).catch((e) => {
res.status(400).send();
});
});

//更新
app.patch('/todos/:id',authenticate, (req, res) => {
var id = req.params.id;
var body = _.pick(req.body, ['text', 'completed']);

if (!ObjectID.isValid(id)) {
return res.status(404).send();
}

if (_.isBoolean(body.completed) && body.completed) {
body.completedAt = new Date().getTime();
} else {
body.completed = false;
body.completedAt = null;
}

Todo.findOneAndUpdate({_id: id, _creator: req.user._id}, {$set: body}, {new: true}).then((todo) => {
if (!todo) {
return res.status(404).send();
}

res.send({todo});
}).catch((e) => {
res.status(400).send();
})
});

//监听
app.listen(port,()=>{
console.log(`Start on port ${port}`);
});
module.exports = {
app,
Todo
}