How to upload a bytes image on Google Cloud Storage from a Python script

Question

I want to upload an image on Google Cloud Storage from a python script. This is my code:

from oauth2client.service_account import ServiceAccountCredentials
f         


        

Answer 1

MediaIoBaseUpload expects an io.Base-like object and raises following error:

  'numpy.ndarray' object has no attribute 'seek'

upon receiving a ndarray object. To solve it I am using TemporaryFile and numpy.ndarray().tofile()

from oauth2client.service_account import ServiceAccountCredentials
from googleapiclient import discovery
import googleapiclient
import numpy as np
import cv2
from tempfile import TemporaryFile


scopes = ['https://www.googleapis.com/auth/devstorage.full_control']
credentials = ServiceAccountCredentials.from_json_keyfile_name('serviceAccount.json', scopes)
service = discovery.build('storage','v1',credentials = credentials)

body = {'name':'my_image.jpg'}
with TemporaryFile() as gcs_image:
    cv2.imread('img.jpg').tofile(gcs_image)
    req = service.objects().insert(
       bucket='my_bucket’, body=body,
       media_body=googleapiclient.http.MediaIoBaseUpload(
          gcs_image, 'application/octet-stream'))

    resp = req.execute()

Be aware that googleapiclient is non-idiomatic and maintenance only(it’s not developed anymore). I would recommend using idiomatic one.