I have following input
\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA7YAAAISCAIAAAB3YsSDAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAA5JxJREFUeNrsnQ
import base64
from django.core.files.base import ContentFile
image_data = requestData['user']['image']
format, imgstr = image_data.split(';base64,')
print("format", format)
ext = format.split('/')[-1]
data = ContentFile(base64.b64decode(imgstr))
file_name = "'myphoto." + ext
user.image.save(file_name, data, save=True) # image is User's model field