诱人的 GraphQL & React & Apollo 实战视频教程 #14 连接到 mLab 线上的 MongoDB 数据库

mlab 新的用户可能访问不了了，以前是可以的，现在被别的网站代替了

可以使用这个 https://scalegrid.io/ 也是一样的，创建好数据库，还有它的账号和密码，获取链接地址就行

https://mlab.com

https://www.qiuzhi99.com/playlists/nodejs-express-shi-xian-duo-yong-hu-bo-ke-xi-tong

https://www.qiuzhi99.com/playlists/nodejs-express-mongodb-ji-chu-pian

https://stackoverflow.com/questions/50448272/avoid-current-url-string-parser-is-deprecated-warning-by-setting-usenewurlpars

server/app.js

const express = require('express');
const graphqlHTTP = require('express-graphql');
const schema = require('./schema/schema');
const mongoose = require('mongoose');

const app = express();

// 连接到 mlab 数据库
// 替换自己的用户名和密码
mongoose.connect("mongodb://test:test123@ds131914.mlab.com:31914/graphql", { useNewUrlParser: true });
mongoose.connection.once('open', () => {
  console.log('connected to database');
})

app.use('/graphql', graphqlHTTP({
  schema,
  graphiql: true
}))

app.listen(4000, () => {
  console.log('now listening for requests on port 4000');
})