form-data.browser.js

'use strict'
/* eslint-env browser */

const normaliseInput = require('ipfs-utils/src/files/normalise-input')

exports.toFormData = async input => {
  const files = normaliseInput(input)
  const formData = new FormData()
  let i = 0

  for await (const file of files) {
    const headers = {}

    if (file.mtime) {
      headers.mtime = file.mtime
    }

    if (file.mode) {
      headers.mode = file.mode
    }

    if (file.content) {
      // In the browser there's _currently_ no streaming upload, buffer up our
      // async iterator chunks and append a big Blob :(
      // One day, this will be browser streams
      const bufs = []
      for await (const chunk of file.content) {
        bufs.push(chunk)
      }

      formData.append(`file-${i}`, new Blob(bufs, { type: 'application/octet-stream' }), encodeURIComponent(file.path), {
        header: headers
      })
    } else {
      formData.append(`dir-${i}`, new Blob([], { type: 'application/x-directory' }), encodeURIComponent(file.path), {
        header: headers
      })
    }

    i++
  }

  return formData
}