hiredis is not being installed

• Version: 2.7.1
• Platform: Node.js 8.1.3 / macOS 10.12.5
• Description: After running yarn or npm install on the project and while generating a webpack build I got this error

ERROR in ./node_modules/redis-parser/lib/hiredis.js
Module not found: Error: Can't resolve 'hiredis' in
error Command failed with exit code 2.

The webpack config is the following:

var path = require('path')

module.exports = {
  entry: './src/index.js',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist')
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: ['babel-loader']
      }
    ]
  },
  target: 'node'
}

package.json

{
  "version": "1.0.0",
  "main": "src/index.js",
  "license": "MIT",
  "dependencies": {
    "dotenv": "^4.0.0",
    "koa": "^2.3.0",
    "koa-bodyparser": "^4.2.0",
    "koa-router": "^7.2.1",
    "node-fetch": "^1.7.1",
    "redis": "^2.7.1"
  },
  "devDependencies": {
    "babel-cli": "^6.24.1",
    "babel-loader": "^7.1.1",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "babel-plugin-transform-object-rest-spread": "^6.23.0",
    "babel-preset-env": "^1.5.2",
    "webpack": "^3.0.0"
  },
  "scripts": {
    "start": "node dist/bundle",
    "build": "webpack"
  },
  "babel": {
    "presets": [
      [
        "env",
        {
          "targets": {
            "node": "current"
          }
        }
      ]
    ],
    "plugins": [
      "transform-object-rest-spread",
      "transform-class-properties"
    ]
  }
}

[guidobouman]

Actually, that’s not an issue with Webpack. That’s an issue with how redis-parser used hiredis. This issue can be solved by upgrading to redis-parser 3.0, which solves exactly this issue.

[muratgozel]

That must be related with webpack. I was solved this issue by using nodeExternals plugin in webpack config:

const nodeExternals = require('webpack-node-externals')

module.exports = {
  ...
  externals: [nodeExternals()],
  target: 'node'
}

nodeExternals skips any module in node_modules folder at server side bundling.