将图像字节上传到cloudinary的正确方法 [英] Correct way for uploading image bytes to cloudinary

问题描述

我正在使用 http://cloudinary.com/documentation/image_upload_api_reference 作为参考。 p>

在两种情况下，我要将文件上传到cloudinary。

1. 通过直接提供URL链接来上传图像。


2. 通过从其他来源获取图像字节来上传图像字节。

我可以解决情况1，但在第二次遇到麻烦。我在下面粘贴我的代码流以供参考。

  import cloudinary 
 import cloudinary.uploader 
 
从io导入BytesIO 
从StringIO导入StringIO 
 
 def upload_image_to_cloudinary（img_tag）：
 
 logging.debug（将映像上传到cloudinary：％s％ img_tag）
 
如果'src'不在img_tag.attrs中：
 del img_tag 
返回
 
 img_src = img_tag ['src'] 
 
 if img_src.startswith（'/ blob'）：
 
 quip_client = pgquip.get_client（）
 blob_ids = img_src.split（'/'）
 blob_response = quip_client.get_blob（blob_ids [2]，blob_ids [3]）
 
 img_src_str = blob_response.read（）＃返回str对象。 
＃img_src =字节IO（img_src_str）
 img_src = StringIO（img_src_str）
 
 cloudinary_response = cloudinary.uploader.upload_image（
 img_src，
 use_filename = True ，
 folder = / pagalguy / articles，
 width = 546，
 crop = limit 
）
 
 img_tag ['src'] = cloudinary_response.metadata.get（ url）
 
返回img_tag 
  

如果 img_src 是另一个API返回的图像斑点 str ，我将其传递为 cloudinary doc中提到的文件参数与任何外部图像URL的方式非常相似，例如： rel = nofollow noreferrer> https://media.licdn.com/mpr/mpr/shrinknp_400_400/AAEAAQAAAAAAAAIkAAAAJGRhNzJiYjY1LTUxOTctNDI4NC1hOGIwLWQ1OTVlNmZlZmVmYw.jpg $ ， 通用上传流程如何像boto f或s3，我检查以下回购代码。
引用了 https://github.com /boto/boto/blob/develop/boto/vendored/six.py#L633 也是如此。

错误日志：

上载无效的URL
回溯（最近一次调用为最新）：
File / base / data / home / apps / s〜pagalguy- staging / namita：v1.397698162588746989 / articleslib / article_util.py，第68行，位于upload_images_n_publish
标签= image_util.upload_image_to_cloudinary（tag）
文件 / base / data / home / apps / s〜pagalguy -staging / namita：v1.397698162588746989 / api / image_util.py，第133行，位于upload_image_to_cloudinary中
crop = limit
File / base / data / home / apps / s〜pagalguy-staging /namita:v1.397698162588746989/libs/cloudinary/uploader.py，第23行，位于upload_image
结果= upload（file，** options）
文件 / base / data / home / apps / s〜pagalguy-stage / namita：v1.397698162162588746989 / libs / cloudinary / uploader .py，第17行，在上传
中，返回call_api（ upload，params，file = file，** options）
File / base / data / home / apps / s〜pagalguy-staging /namita:v1.397698162588746989/libs/cloudinary/uploader.py，第226行，在call_api
中引发Error（result [ error] [ message]）
错误：上载网址无效

最后我不知道哪种方法是将图像字节上传到cloudinary的正确方法。

解决方案

您的 img_src 参数，它表示 file ，应该使用字节数组缓冲区（ bytearray ）或Base64 URI填充。您可以尝试以下操作：

 并以open（img_src_str， rb）as imageFile：
f = imageFile.read （）
 img_src = bytearray（f）
 
 cloudinary_response = cloudinary.uploader.upload（
 img_src，
 ... 
）
  

I am using http://cloudinary.com/documentation/image_upload_api_reference as reference.

There are two cases in which I want to upload the files to cloudinary.

1. Upload image by directly giving url link.
2. Upload image bytes by taking them from different source.

I could solve case 1, but had trouble in 2nd. I am pasting my code flow below for reference.

import cloudinary
import cloudinary.uploader

from io import BytesIO
from StringIO import StringIO

def upload_image_to_cloudinary(img_tag):

  logging.debug("Uploading Image to cloudinary : %s"%img_tag)

  if 'src' not in img_tag.attrs:
    del img_tag
    return

  img_src = img_tag['src']

  if img_src.startswith('/blob'):

    quip_client = pgquip.get_client()
    blob_ids = img_src.split('/')
    blob_response = quip_client.get_blob(blob_ids[2], blob_ids[3])

    img_src_str = blob_response.read()  # this returns str object.
    # img_src = BytesIO(img_src_str)
    img_src = StringIO(img_src_str)

  cloudinary_response = cloudinary.uploader.upload_image(
    img_src,
    use_filename=True,
    folder="/pagalguy/articles",
    width=546,
    crop="limit"
  )

  img_tag['src'] = cloudinary_response.metadata.get("url")

  return img_tag

In case where img_src is a image blob str returned by another api, I passed it as file param mentioned in cloudinary doc in a very similar way as any external image url for eg: https://media.licdn.com/mpr/mpr/shrinknp_400_400/AAEAAQAAAAAAAAIkAAAAJGRhNzJiYjY1LTUxOTctNDI4NC1hOGIwLWQ1OTVlNmZlZmVmYw.jpg

And, for checking how generic upload flows work like boto for s3, I check below repo code. Refered https://github.com/boto/boto/blob/develop/boto/vendored/six.py#L633 this too.

Error Log:

Invalid URL for upload Traceback (most recent call last): File "/base/data/home/apps/s~pagalguy-staging/namita:v1.397698162588746989/articleslib/article_util.py", line 68, in upload_images_n_publish tag = image_util.upload_image_to_cloudinary(tag) File "/base/data/home/apps/s~pagalguy-staging/namita:v1.397698162588746989/api/image_util.py", line 133, in upload_image_to_cloudinary crop="limit" File "/base/data/home/apps/s~pagalguy-staging/namita:v1.397698162588746989/libs/cloudinary/uploader.py", line 23, in upload_image result = upload(file, **options) File "/base/data/home/apps/s~pagalguy-staging/namita:v1.397698162588746989/libs/cloudinary/uploader.py", line 17, in upload return call_api("upload", params, file = file, **options) File "/base/data/home/apps/s~pagalguy-staging/namita:v1.397698162588746989/libs/cloudinary/uploader.py", line 226, in call_api raise Error(result["error"]["message"]) Error: Invalid URL for upload

Finally I don't know which is the correct way to upload image bytes to cloudinary.

解决方案

Your img_src parameter, which represents file, should be populated with either a byte array buffer (bytearray) or a Base64 URI. You can try something like:

    with open(img_src_str, "rb") as imageFile:
      f = imageFile.read()
      img_src = bytearray(f)

    cloudinary_response = cloudinary.uploader.upload(
      img_src,
      ...
    )

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