![](/img/trans.png)
[英]Trouble displaying image from cloud storage on Google App Engine, Python
[英]Uploading an Image from an external link to google cloud storage using google app engine python
我正在尋找一個解決方案,如何使用appengine python從http://example.com/image.jpg
等外部網址上傳圖片到google雲存儲,
我現在正在使用
blobstore.create_upload_url('/uploadSuccess', gs_bucket_name=bucketPath)
對於想要從他們的計算機上傳圖片的用戶,請致電
images.get_serving_url(gsk,size=180,crop=True)
在uploadSuccess上並將其存儲為他們的個人資料圖片。 我試圖允許用戶在使用oauth2登錄后使用他們的臉書或谷歌個人資料圖片。 我可以訪問他們的個人資料圖片鏈接,我只想復制它以保持一致性。 皮斯幫助:)
要上傳外部圖像,您必須獲取並保存。 要獲取圖像,您可以使用此代碼 :
from google.appengine.api import urlfetch
file_name = 'image.jpg'
url = 'http://example.com/%s' % file_name
result = urlfetch.fetch(url)
if result.status_code == 200:
doSomethingWithResult(result.content)
要保存圖像,您可以使用此處顯示的應用引擎GCS客戶端代碼
import cloudstorage as gcs
import mimetypes
doSomethingWithResult(content):
gcs_file_name = '/%s/%s' % ('bucket_name', file_name)
content_type = mimetypes.guess_type(file_name)[0]
with gcs.open(gcs_file_name, 'w', content_type=content_type,
options={b'x-goog-acl': b'public-read'}) as f:
f.write(content)
return images.get_serving_url(blobstore.create_gs_key('/gs' + gcs_file_name))
如果你正在尋找一種依賴storages
包的更新方式,我寫了這兩個函數:
import requests
from storages.backends.gcloud import GoogleCloudStorage
def download_file(file_url, file_name):
response = requests.get(file_url)
if response.status_code == 200:
upload_to_gc(response.content, file_name)
def upload_to_gc(content, file_name):
gc_file_name = "{}/{}".format("some_container_name_here", file_name)
with GoogleCloudStorage().open(name=gc_file_name, mode='w') as f:
f.write(content)
然后通常調用download_file()
並從系統中的任何位置傳遞url
和prefered_file_name
。
GoogleCloudStorage
類來自django-storages
包。
pip install django-storages
這是我的新解決方案(2019),僅使用google-cloud-storage
庫和upload_from_string()
函數(參見此處 ):
from google.cloud import storage
import urllib.request
BUCKET_NAME = "[project_name].appspot.com" # change project_name placeholder to your preferences
BUCKET_FILE_PATH = "path/to/your/images" # change this path
def upload_image_from_url_to_google_storage(img_url, img_name):
"""
Uploads an image from a URL source to google storage.
- img_url: string URL of the image, e.g. https://picsum.photos/200/200
- img_name: string name of the image file to be stored
"""
storage_client = storage.Client()
bucket = storage_client.get_bucket(BUCKET_NAME)
blob = bucket.blob(BUCKET_FILE_PATH + "/" + img_name + ".jpg")
# try to read the image URL
try:
with urllib.request.urlopen(img_url) as response:
# check if URL contains an image
info = response.info()
if(info.get_content_type().startswith("image")):
blob.upload_from_string(response.read(), content_type=info.get_content_type())
print("Uploaded image from: " + img_url)
else:
print("Could not upload image. No image data type in URL")
except Exception:
print('Could not upload image. Generic exception: ' + traceback.format_exc())
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.