如何上传Croppie照片到Google云存储

Question

我正试着上传一张照片，在被croppie剪切到GCS之后。gcs write（imageToUpload）方法失败，因为imageToUpload当前不是文件，而是Blob。有没有人知道一个办法让这件事成功？可能是python中一种将BLOB转换为文件的方法吗？可以从Croppie返回的图像类型有：1）画布，2)HTML，3)BLOB和4)Base64这里是文档（Ctrl-F“result”）。任何帮助将非常感谢！

Answer 1

您可以在App Engine中使用imagespkg。

from google.appengine.api import images
import urllib2

# if you fetch as image
image        = urllib2.urlopen(the_image_url)   
content_type =  image.headers['Content-Type'] 
image_bytes  = image.read()
image.close()

# if you fetch as bytes
image_bytes  = urllib2.urlopen(the_image_bytes_url) 
content_type = my_image_file.content_type  

filename = '/{}/user/{}_avatar'.format(DEFAULT_GCS_BUCKET_NAME), user_id) # for example

'''
    Create a GCS file with GCS client.
    Make sure you give the GAE app permission to write to your bucket:
    https://developers.google.com/appengine/docs/python/googlestorage/index#Prerequisites
'''

options={'x-goog-acl': 'public-read', 'Cache-Control': 'private, max-age=0, no-transform'}
with gcs.open(filename, 'w', content_type=content_type, options=options) as f:
    f.write(image_bytes)
    f.close()