uppy/examples/svelte-example/server.js

#!/usr/bin/env node

/* eslint-disable no-console */

import http from 'node:http'
import { fileURLToPath } from 'node:url'
import { mkdir } from 'node:fs/promises'

import formidable from 'formidable'

const UPLOAD_DIR = new URL('./uploads/', import.meta.url)

await mkdir(UPLOAD_DIR, { recursive: true })

http
  .createServer((req, res) => {
    const headers = {
      'Content-Type': 'application/json',
      'Access-Control-Allow-Origin': '*',
      'Access-Control-Allow-Methods': 'OPTIONS, POST, GET',
      'Access-Control-Max-Age': 2592000, // 30 days
      /** add other headers as per requirement */
    }

    if (req.method === 'OPTIONS') {
      res.writeHead(204, headers)
      res.end()
      return
    }
    if (req.url === '/upload' && req.method.toLowerCase() === 'post') {
      // parse a file upload
      const form = formidable({
        keepExtensions: true,
        uploadDir: fileURLToPath(UPLOAD_DIR),
      })

      form.parse(req, (err, fields, files) => {
        res.writeHead(200, headers)
        if (err) {
          console.log('some error', err)
          res.write(JSON.stringify(err))
        } else {
          for (const {
            filepath,
            originalFilename,
            mimetype,
            size,
          } of files.files) {
            console.log('saved file', {
              filepath,
              originalFilename,
              mimetype,
              size,
            })
          }
          res.write(JSON.stringify({ fields, files }))
        }
        res.end()
      })
    }
  })
  .listen(9967, () => {
    console.log('server started')
  })