Add images to Google Cloud Storage (inc. Firebase) using NodeJS.

firebase.storage.js

/*
 * Example for adding images to Google Cloud Storage using NodeJS.
 * This integrates with Firebase, you just need to download the keyfile.
 * Firebase project > Settings > Firebase Admin SDK > Generate new private key.
 * Don't forget to install dependancies: "yarn add bluebird @google-cloud/storage"
 */
const projectId = 'xxx'
const bucketName = projectId+'.appspot.com'
const Promise = require('bluebird');
const GoogleCloudStorage = Promise.promisifyAll(require('@google-cloud/storage'));
const storage = GoogleCloudStorage({
  projectId: projectId,
  keyFilename: 'xxx.json'
})
const myBucket = storage.bucket(bucketName)
const file = myBucket.file('xxx.jpg');
const localFileLocation = './xx.jpg'

file.existsAsync()
  .then(exists => {
    if (exists) {
      console.log('File already exists.')
    }
  })
  .catch(err => {
     return err
  })

myBucket.uploadAsync(localFileLocation, { public: true })
  .then(file => {
    console.log('Uploaded.')
  })
    
const getPublicThumbnailUrlForItem = file_name => {
  return `https://storage.googleapis.com/${bucketName}/${file_name}`
}

getPublicThumbnailUrlForItem(localFileLocation);