Changcumt / graphql-demo

a demo of graphql, server use nodejs, fe use react

graphql-demo

a demo of graphql, server use nodejs, fe use react

官方教程

Koa 环境搭建过程 koa文档

1.搭建Koa基础

const Koa = require('koa');
const app = new Koa();

// logger middleware

app.use(async (ctx, next) => {
  await next();
  console.log(`${ctx.method} ${ctx.url} `);
});

// response

app.use(async ctx => {
  ctx.body = 'Hello World';
});

app.listen(3000);

2. koa 路由配置

npm install koa-router koa-bodyparser

const Koa = require('koa');
const bodyParser = require('koa-bodyparser');
const app = new Koa();
app.use(bodyParser());  // 解析request的body

const router = require('koa-router')()
router.get('/', async (ctx, next) => {
	// todo
})
app.use(router.routes());
app.listen(9000);

3. 集成mongo DB

const db = mongoose.connect("mongodb://localhost/testDB")

var UserSchema = new mongoose.Schema({
    username:String,
    password:String,
    email:String
});
var User = mongoose.model('User',UserSchema);

// 新增数据
var user = {
  username: 'ydj',
  password: '123123',
  email: ''
}
var newUser = new User(user);
newUser.save();