.babelrc

{
  "plugins": [
    [
      "wrap-in-js",
      {
        "extensions": ["css$"]
      }
    ]
  ],
  "presets": [
    "next/babel"
  ],
  "ignore": []
}

index.js

const express = require('express')
const { parse } = require('url')
const next = require('next')

const dev = process.env.NODE_ENV !== 'production'
const app = next({ dir: '.', dev })
const handle = app.getRequestHandler()

app.prepare()
   .then(() => {
    const server = express()

    server.set('port', (process.env.PORT || 3000));

  	server.get('/', (req, res) => {
  	  return app.render(req, res, '/homepage')
  	})

  	server.get('/page/:slug', (req, res) => {
  	  const queryParams = { slug: req.params.slug }
  	  return app.render(req, res, '/page', queryParams)
  	})

  	server.get('/theme/:slug', (req, res) => {
  	  const queryParams = { slug: req.params.slug }
  	  return app.render(req, res, '/theme', queryParams)
  	})

  	server.get('/theme/:id/:slug', (req, res) => {
  	  const queryParams = { id: req.params.id, slug: req.params.slug }
  	  return app.render(req, res, '/racine', queryParams)
  	})

  	server.get('*', (req, res) => {
  	  return handle(req, res)
  	})

    server.listen(3000, (err) => {
      if (err) throw err
      console.log('> Ready on http://localhost:3000')
    })
  })

next.config.js

module.exports = {
  webpack: (config, { dev }) => {
    config.module.rules.push(
      {
        test: /\.(css)/,
        loader: 'emit-file-loader',
        options: {
          name: 'dist/[path][name].[ext]'
        }
      }
    ,
      {
        test: /\.css$/,
        loader: 'babel-loader!raw-loader'
      }
    )
    return config
  }
}

package.json

{
  "name": "kub-clientt",
  "version": "1.0.0",
  "main": "index.js",
  "repository": {},
  "author": "Fabien LF ",
  "license": "MIT",
  "scripts": {
    "dev": "node index.js",
    "build": "next build",
    "start": "NODE_ENV=production node index.js"
  },
  "dependencies": {
    "babel-plugin-wrap-in-js": "^1.1.1",
    "express": "^4.14.1",
    "isomorphic-fetch": "^2.2.1",
    "next": "2",
    "nprogress": "^0.2.0",
    "raw-loader": "^0.5.1",
    "react": "^15.4.2",
    "react-dom": "^15.4.2",
    "react-masonry-component": "^5.0.3",
    "react-sizeme": "^2.2.0",
    "request": "^2.79.0",
    "request-promise": "^4.1.1",
    "request-promise-native": "^1.0.3",
    "styled-components": "^1.4.3"
  }
}