NUXT: Module not found: Error: Can't resolve 'fs'

Question

I'm starting out with vue and nuxt, I have a project using vuetify and I'm trying to modify the carousel component to dynamically load images from the static folder. So far I've come up with:

    <template>
    <v-carousel>
        <v-carousel-item v-for="(item,i) in items" :key="i" :src="item.src"></v-carousel-item>
    </v-carousel>
    </template>


    <script>
    function getImagePaths() {
        var glob = require("glob");
        var options = {
        cwd: "./static"
        };
        var fileNames = glob.sync("*", options);
        var items = [];
        fileNames.forEach(fileName =>
        items.push({
            'src': '/'+fileName
        })
        );
        return items;
    }
    export default {
        data() {
        return {items :getImagePaths()};
        }
    };

    </script>

When I test this I see:

ERROR in ./node_modules/fs.realpath/index.js
Module not found: Error: Can't resolve 'fs' in '....\node_modules\fs.realpath'
ERROR in ./node_modules/fs.realpath/old.js
Module not found: Error: Can't resolve 'fs' in ....\node_modules\fs.realpath'
ERROR in ./node_modules/glob/glob.js
Module not found: Error: Can't resolve 'fs' in '....\node_modules\glob'
ERROR in ./node_modules/glob/sync.js
Module not found: Error: Can't resolve 'fs' in '.....\node_modules\glob'

googling this I see a bunch of references like https://github.com/webpack-contrib/css-loader/issues/447.

These suggest that you have to midify the webpack config file with something like:

node: {
  fs: 'empty'
}

I know very little about webpack. I found https://nuxtjs.org/faq/extend-webpack/ , but am not sure how to modify the webpack config file in this case.

How do I do this?

make an api endpoint that would return image urls for the images and make api call to get it in asyncData — Aldarund

nmfzone nmfzone · Accepted Answer · 2019-01-05T19:33:20

You can't use NodeJs specific module on browser.

To solve your issue, you can create an API using Nuxt server middleware. The code below, inspired by https://github.com/nuxt-community/express-template.

Create a file, index.js in api/index.js. Then fill it with:

const express = require('express')

// Create express instance
const app = express()

// Require API routes
const carousel = require('./routes/carousel')

// Import API Routes
app.use(carousel)

// Export the server middleware
module.exports = {
  path: '/api',
  handler: app
}

Create carousel.js in api/routes/carousel.js. Then fill it with:

const { Router } = require('express')
const glob = require('glob')

const router = Router()

router.get('/carousel/images', async function (req, res) {
  const options = {
    cwd: './static'
  }
  const filenames = glob.sync('*', options)

  let items = [];
  filenames.forEach(filename =>
    items.push({
      'src': '/'+filename
    })
  );

  return res.json({ data: items })
})

module.exports = router

Register your server middleware in nuxt.config.js

module.exports = {
  build: {
    ...
  },
  serverMiddleware: [
    '~/api/index.js'
  ]
}

Call the api in your page / component. I assume you're using Axios here (axios-module).

<script>
export default {
  async asyncData ({ $axios }) {
    const images = (await $axios.$get('/api/carousel/images')).data

    return { images }
  }
}
</script>

NUXT: Module not found: Error: Can't resolve 'fs'

1 Answers