简单的React SSR服务器渲染实现

npm install --save-dev koa
npm install --save-dev babel-core
npm install --save-dev babel-polyfill
npm install --save-dev babel-preset-latest-node
npm install --save-dev babel-preset-stage-2
npm install --save-dev babel-preset-react
# or
yarn add -dev koa
yarn add -dev babel-core
yarn add -dev babel-polyfill
yarn add -dev babel-preset-latest-node
yarn add -dev babel-preset-stage-2
yarn add -dev babel-preset-react

// start.js
require('babel-core/register')({
  ignore: [/node_modules/],
  presets: [
    'stage-2',
    'react',
    [
      "latest-node",
      { "target": "current" }
    ]
  ]
});

require('babel-polyfill');
require('./../index');

// index.js
import Koa from 'koa';
import React from 'react';
import ReactDOMServer from 'react-dom/server';

const { renderToString } = ReactDOMServer;

const app = new Koa();

app.use(ctx => {
  ctx.body = renderToString(
    <div>
      <h1>Hello，World</h1>
    </div>
  );
});

app.listen(3000, () => {
  console.log('server run in 3000');
});

"scripts": {
  "start": "node ./src/start.js"
 },