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koa-server-module

v0.1.6

Published

koa server module

Readme

koa-server-module

快速构建一个 koa 接口服务器。

Install

npm install --save koa-server-module

Quick start

快速上手,使用简单语法糖快速构建一个服务。

// get method
server.get([address],[response]);

// post method
server.post([address],[response]);

example.js

import {server} from "koa-server-module";

server.get('/get', {
  code: 200,
  msg: 'get success',
  data: null
});

server.post('/post', {
  code: 200,
  msg: 'post success',
  data: null
});

server.listen(9000);

使用es6的写法需要使用 babel-register 来运行此js文件。 浏览器打开 http://localhost:9000/get, 得到对应的json数据

另一种写法

koa-router 的写法。

import {server, router} from "koa-server-module";

router.get('/get', async(ctx,next) => {
    ctx.body = JSON.stringify({
        code: 200,
        msg: 'get success',
        data: null
    })
});

router.post('/post', async(ctx,next) => {
    ctx.body = JSON.stringify({
        code: 200,
        msg: 'post success',
        data: null
    })
});

server.listen(9000);

middleware

使用中间件,例如给每个接口设置header。

import {server, router} from "koa-server-module";

const setHeader = async(ctx, next) => {
  ctx.set(`Access-Control-Allow-Credentials`, true);
  await next();
};

router.get('/get', setHeader, async(ctx,next) => {
    ctx.body = JSON.stringify({
        code: 200,
        msg: 'get success',
        data: null
    })
});

server.listen(9000);

Delay

延迟响应,模拟慢网速

import {server} from "koa-server-module";

server.delay(3000); // 延迟3秒

server.get('/get', {
  code: 200,
  msg: 'get success',
  data: null
});

server.listen(9000);

pagination

分页,获取请求的数据并返回数据。

example

import {server, router} from "koa-server-module";

router.get(`/page`, async(ctx, next) => {
  const pageIndex = ctx.query.pageIndex ? parseInt(ctx.query.pageIndex) : 1;
  const pageSize = ctx.query.pageSize ? parseInt(ctx.query.pageSize) : 1;
  ctx.body = JSON.stringify(
    {
      "code": 200,
      "msg": "success",
      "data": {
        pageIndex: pageIndex,
        pageSize: pageSize,
        totalPage: Math.ceil(3 / pageSize),
        list: [
          {
            id: 1,
            name: 1
          },
          {
            id: 2,
            name: 2
          },
          {
            id: 3,
            name: 3
          }
        ].splice((pageIndex - 1) * pageSize, pageSize)
      }
    }
  );
});

server.listen(9000);

es5 way

es5环境下如何使用

'use strict';

const server = require('../build/server').server;

server.get('/test',{
  code: 200,
    msg: 'success',
    data: null
});

server.listen(9001);