[使用Flask和Google Cloud Storage进行400错误的错误请求

Question

我正在尝试将我的应用烧瓶用户个人资料图像存储到Google云存储桶中，但出现400错误的请求错误。

[查找，我发现这个人和我有同样的问题，但是对我没有帮助（link）

我有一个storage.py，其中有我的upload_image_file函数

from flask import current_app
from google.cloud import storage
import json

### Función que almacena las imágenes en google cloud

def upload_image_file(file, folder, contend_id):  
    if not file:
        return None
    file.format = 'png'
    date = datetime.datetime.utcnow().strftime('%Y-%m-%d-%H%M%S')
    filename = '{}-{}.{}'.format(contend_id, date, 'png')
    client = storage.Client(project=current_app.config['PROJECT_ID'])
    bucket = client.bucket(current_app.config['CLOUD_STORAGE_BUCKET'])
    #blob = bucket.blob(current_app.config['GOOGLE_APPLICATION_CREDENTIALS'])   
    blob = bucket.blob(os.path.join(folder, filename))
    blob.upload_from_string(file.read(), content_type=file.content_type)
    url = blob.public.url
    if isinstance(url, six.binary_type):
        url = url.decode('utf-8')
    return url

我的控制器views.py：

from flask import Blueprint, render_template, request, session, redirect, url_for, abort
from user.models import User
from user.forms import RegistrationForm, LoginForm, EditProfileForm
import bcrypt
from user.decorators import login_required
from utilities.storage import upload_image_file


user_page = Blueprint('user_page', __name__)
#Editar Usuario
    @user_page.route('/edit', methods=['POST','GET'])
    @login_required
    def edit():
        #validar que inicio sesion
        user = User.objects.filter(email=session['email']).first()
        if user: 
            error = None
            message = None
            form = EditProfileForm(obj=user)
            #validar que los datos actualizados no esten en uso
            if request.method == 'POST' and form.validate():
                if user.email != form.email.data.lower():
                    if User.objects.filter(email=form.email.data.lower()).first():
                        error = 'Email is already in use'
                    else: 
                        session['email'] = form.email.data.lower()
                if not error:
                    form.populate_obj(user)
                    image_url = upload_image_file(request.files.get('image'), 'profile_image', str(user.id))
                    if image_url:
                        user.profile_image = image_url
                    user.save()
                    message = 'Profile updated'

            return render_template('user/edit.html', user=user, form=form, error=error, message=message)
        else:
            abort(404)

这是错误：

google.api_core.exceptions.BadRequest
google.api_core.exceptions.BadRequest: 400 POST https://storage.googleapis.com/upload/storage/v1/b/denunciasapp-bucket/o?uploadType=multipart: ('Request failed with status code', 400, 'Expected one of', <HTTPStatus.OK: 200>)

Traceback (most recent call last)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1549, in upload_from_file
created_json = self._do_upload(
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1402, in _do_upload
response = self._do_multipart_upload(
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1092, in _do_multipart_upload
response = upload.transmit(transport, data, object_metadata, content_type)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/resumable_media/requests/upload.py", line 108, in transmit
self._process_response(response)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/resumable_media/_upload.py", line 109, in _process_response
        .. _sans-I/O: https://sans-io.readthedocs.io/
        """
        # Tombstone the current upload so it cannot be used again (in either
        # failure or success).
        self._finished = True
        _helpers.require_status_code(response, (http_client.OK,), self._get_status_code)

    @staticmethod
    def _get_status_code(response):
        """Access the status code from an HTTP response.

File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/resumable_media/_helpers.py", line 91, in require_status_code
raise common.InvalidResponse(
During handling of the above exception, another exception occurred:
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 2464, in __call__
return self.wsgi_app(environ, start_response)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 2450, in wsgi_app
response = self.handle_exception(e)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 1867, in handle_exception
reraise(exc_type, exc_value, tb)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
raise value
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
response = self.full_dispatch_request()
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
raise value
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
rv = self.dispatch_request()
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/Users/ralphsliger/DenunciasApp/App/user/decorators.py", line 11, in decorated_function
return f(*args, **kwargs)
File "/Users/ralphsliger/DenunciasApp/App/user/views.py", line 76, in edit
image_url = upload_image_file(request.files.get('image'), 'profile_image', str(user.id))
File "/Users/ralphsliger/DenunciasApp/App/utilities/storage.py", line 20, in upload_image_file
    filename = '{}-{}.{}'.format(contend_id, date, 'png')
    client = storage.Client(project=current_app.config['PROJECT_ID'])
    bucket = client.bucket(current_app.config['CLOUD_STORAGE_BUCKET'])
    #blob = bucket.blob(current_app.config['GOOGLE_APPLICATION_CREDENTIALS'])
    blob = bucket.blob(os.path.join(folder, filename))
    blob.upload_from_string(file.read(), content_type=file.content_type)
    url = blob.public.url
    if isinstance(url, six.binary_type):
        url = url.decode('utf-8')
    return url

File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1716, in upload_from_string
self.upload_from_file(
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1563, in upload_from_file
_raise_from_invalid_response(exc)
File "/Users/ralphsliger/DenunciasApp/App/env/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 2612, in _raise_from_invalid_response
raise exceptions.from_http_status(response.status_code, message, response=response)
google.api_core.exceptions.BadRequest: 400 POST https://storage.googleapis.com/upload/storage/v1/b/denunciasapp-bucket/o?uploadType=multipart: ('Request failed with status code', 400, 'Expected one of', <HTTPStatus.OK: 200>)
The debugger caught an exception in your WSGI application. You can now look at the traceback which led to the error.
To switch between the interactive traceback and the plaintext one, you can click on the "Traceback" headline. From the text traceback you can also create a paste of it. For code execution mouse-over the frame you want to debug and click on the console icon on the right side.

You can execute arbitrary Python code in the stack frames and there are some extra helpers available for introspection:

dump() shows all variables in the frame
dump(obj) dumps all that's known about the object

[我是使用Google Cloud和Flask的新手，我不知道自己缺少什么，在我之前提到的上一篇文章（link）中，他们评论内容类型错误。我不确定为什么，我从此https://cloud.google.com/python/getting-started/using-cloud-storage]

我正在尝试将我的应用烧瓶用户个人资料图像存储到Google云存储桶中，但出现400错误的请求错误。查找时，我发现此人与我有相同的问题，但对我没有帮助（...