webpack.config.js

var path    = require('path')
var webpack = require('webpack')
var qs      = require('querystring')
var https   = require('https')

module.exports = {
  entry: './src/main.js',

  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'build.js'
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            // Since sass-loader (weirdly) has SCSS as its default parse mode, we map
            // the "scss" and "sass" values for the lang attribute to the right configs here.
            // other preprocessors should work out of the box, no loader config like this necessary.
            'scss': 'vue-style-loader!css-loader!sass-loader',
            'sass': 'vue-style-loader!css-loader!sass-loader?indentedSyntax'
          }
          // other vue-loader options go here
        }
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      }
    ]
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    }
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true,
    headers: {
      "Access-Control-Allow-Origin": "*",
      "Access-Control-Allow-Methods": "GET, POST, OPTIONS",
      "Access-Control-Allow-Headers": "Content-Type"
    },
    setup(app){
      app.get('/authenticate', function(req, res, next) {

      authenticate(req.query.code, function(err, token) {
        var result = err || !token ? {"error": "bad_code"} : { "token": token };

        res.redirect('/login?token=' + result.token);
      });

      });
    }
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'
  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new webpack.optimize.UglifyJsPlugin({
      sourceMap: true,
      compress: {
        warnings: false
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ])
}



function authenticate(code, cb) {
  var data = qs.stringify({
    client_id: "fc3faed52d63e22777ef",
    client_secret: "2a8a948edd64e2ce72fad24910c99c1b7e1176c5",
    code: code
  });

  var reqOptions = {
    host: "github.com",
    port: 443,
    path: "/login/oauth/access_token",
    method: "POST",
    headers: { 'content-length': data.length }
  };

  var body = "";
  var req = https.request(reqOptions, function(res) {
    res.setEncoding('utf8');
    res.on('data', function (chunk) { body += chunk; });
    res.on('end', function() {
      cb(null, qs.parse(body).access_token);
    });
  });

  req.write(data);
  req.end();
  req.on('error', function(e) { cb(e.message); });
}