helper.js

import { Platform } from 'react-native'
import RNFetchBlob from 'react-native-fetch-blob'

const Blob = RNFetchBlob.polyfill.Blob
const fs = RNFetchBlob.fs
window.XMLHttpRequest = RNFetchBlob.polyfill.XMLHttpRequest
window.Blob = Blob

// User-related helper functions
export const uploadImage = (imageUri, uid, mime = 'application/octet-stream') => {
  console.log('imageUri', imageUri)
  return new Promise((resolve, reject) => {
    const uploadUri = Platform.OS === 'ios' ? imageUri.replace('file://', '') : imageUri
  console.log('uploadUri', uploadUri)
    let uploadBlob = null
    //const storageRef = firebase.storage().ref()
    //const databaseRef = firebase.database().ref(`users/${uid}`)
    //const imageStorageRef = storageRef.child(`profilePhotos/${uid}/profilePhoto.jpg`)

    fs.readFile(uploadUri, 'base64')
      .then((data) => {
        return Blob.build(data, { type: `${mime}BASE64` })
      })
      .then((blob) => {
        //uploadBlob = blob
        //return imageStorageRef.put(blob, { contentType: mime })
      })
      .then(async () => {
        //uploadBlob.close()
        //let downloadUrl = await imageStorageRef.getDownloadURL()

        //databaseRef.update({
          //profilePhotoUrl: downloadUrl
        //})

        //return downloadUrl
      })
      .then((url) => {
        resolve(url)
      })
      .catch((error) => {
        reject(error)
      })
  })
}