如何在package.json中添加NODE_PATH到webpack？

Question

如何添加NODE_PATH到package.json中的webpack？我packcage.json的

部分：

"dependencies": { 
    "axios": "^0.16.2", 
    "cross-env": "^5.0.1", 
    "koa": "^2.3.0", 
    "koa-mount": "^3.0.0", 
    "koa-static": "^4.0.1", 
    "koa-trie-router": "^2.1.5", 
    "mongodb": "^2.2.31", 
    "nuxt": "^1.0.0-rc3", 
    "socket.io": "^2.0.3" 
    }, 
    "devDependencies": { 
    "babel-eslint": "^7.2.3", 
    "backpack-core": "^0.4.1" 
    }, 
    "scripts": { 
    "test": "mocha --harmony", 
    "dev": "NODE_PATH=./app backpack dev", 
    "build": "nuxt build && backpack build", 
    "start": "cross-env NODE_ENV=production NODE_PATH=./app node build/main.js" 
    }, 

backpack.config.js：

module.exports = { 
    webpack: (config, options, webpack) => { 
    config.entry.main = './server/index.js' 
    return config 
    } 
} 

在我server.js：

import Koa from 'koa' 
import { Nuxt, Builder } from 'nuxt' 
import socket from 'socket.io' 
import http from 'http' 
import config from 'config' // this is './config' without NODE_PATH=./app 

错误在npm run dev：

This dependency was not found: 

* config in ./server/index.js 

但是，如果我运行npm start，它工作正常。

任何想法？

Answer 1

您应该编辑您的webpack配置，以包含用于解析模块的应用程序目录。

基于您的代码示例中，它应该是这样的：

module.exports = { 
    webpack: (config, options, webpack) => { 
    config.entry.main = './server/index.js' 
    config.resolve.modules = ['./app'] 
    return config 
    } 
} 

见的WebPack文档细节：

https://webpack.js.org/configuration/resolve/#resolve-modules