const path = require('path');
const fs = require('fs');
const _ = require('lodash');

var nodeExternals = require('webpack-node-externals');
module.exports =config = {
    target: 'node',
    entry: './dist/main.js',
    externals: [nodeExternals()],
    output: {
        filename: 'main.js',
        path: path.resolve(__dirname, 'dist')
    },
    resolve: {
        extensions: [".js"],
    },
    module: {
        rules: [
        ]
    },
    optimization:{
        minimize: false, // <---- disables uglify.
        // minimizer: [new UglifyJsPlugin({
        //     mangle: true
        // })] // if you want to customize it.
    }
};

产生一个打包好的main.js文件和node_modules在同一个目录，注意配置中的_externals_字段。