javascript - How to process less files in react server-side rendering

Question

Background: Use react.js node to implement server-side rendering of react components.

Since the current node does not support import, I use the nodemon --harmony server.js --exec babel-node command to execute, where server.js is the back-end entry file, which can support import. However, when I use antd's Button component, it reports that @import is not supported because antd's button component imports default.less. How can I solve this problem?

server.js

import React, { Component } from 'react';
import { renderToString } from 'react-dom/server'
import { Button } from 'antd';

var Koa = require('koa');
var app = new Koa();
const render = require('koa-ejs');
const path = require('path');

render(app, {
  root: path.join(__dirname, 'server/view'),
  layout: 'template',
  viewExt: 'html',
  cache: false,
  debug: true
});

app.use(async function (ctx, next){
  const html = renderToString(
    <Button>hello</Button>
  );
  await ctx.render('demo', {'html': html});
});

app.keys = ['i love yuewen'];

app.listen(3000);

The error is reported as follows:

/Users/joy.hu/Sites/yue/node_modules/antd/lib/style/index.less:1
(function (exports, require, module, __filename, __dirname) { @import "./themes/default";
                                                              ^
SyntaxError: Invalid or unexpected token
    at createScript (vm.js:53:10)
    at Object.runInThisContext (vm.js:95:10)
    at Module._compile (module.js:543:28)
    at Module._extensions..js (module.js:580:10)
    at Object.require.extensions.(anonymous function) [as .js] (/Users/joy.hu/Sites/yue/node_modules/babel-register/lib/node.js:152:7)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
    at Function.Module._load (module.js:439:3)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/joy.hu/Sites/yue/node_modules/antd/lib/button/style/index.js:3:1)
[nodemon] app crashed - waiting for file changes before starting...

Answer 1

https://babeljs.io/docs/usage...

https://github.com/babel/exam...