import boto3
import base64
import datetime
import io


def upload_file(base64_data, extension):
    s3 = boto3.client('s3')
    picture_bytes = base64.b64decode(base64_data)
    name = str(datetime.datetime.now().timestamp()) + extension; 
    s3.upload_fileobj(io.BytesIO(picture_bytes), 'parking-pictures', name)
    return name