部署失败后创建Gmail草稿

Question

我试图使用Gmail API创建Gmail草稿。

在开发中它可以很好地工作，但是当我部署它时，我收到一条错误消息。

POST http://myapp.appspot.com/emailDoc 500 (Internal Server Error) 

这是我的瓶路由功能看起来像：

# Flask Route 
@app.route('/emailDoc', methods=["POST"]) 
def emailDoc(): 

    # Get Oauth2 Credentials 
    credentials = Credentials().get_by_id('tokens') 
    if not authcheck(credentials): 
     return 'error' 

    # Create ReportLab PDF 
    buff = StringIO() 
    doc = SimpleDocTemplate(buff, pagesize=A4, 
          rightMargin=1.25*cm,leftMargin=1.25*cm, 
          topMargin=1.25*cm,bottomMargin=1.25*cm) 
    doc.build(genpdf(data)) 

    # Create Email Message 
    message = MIMEMultipart() 
    message['to'] = to@email.com 
    message['from'] = 'me' 
    message['subject'] = 'Hello' 

    messageBody = MIMEText("Hello Wolrd") 

    messageFile = MIMEBase('application', 'pdf') 
    messageFile.set_payload(str(buff.getvalue())) 
    messageFile.add_header('Content-Disposition', 'attachment', filename='document.pdf') 

    message.attach(messageBody) 
    message.attach(messageFile) 

    # Oauth2 Flow 
    access_token = credentials.access_token 
    flow = AccessTokenCredentials(access_token, 'myapp') 
    http = flow.authorize(httplib2.Http()) 

    # HTTP Request 
    obj = http.request(
     uri='https://www.googleapis.com/gmail/v1/users/me/drafts', 
     method='POST', 
     body={ 
      'message': { 
      'raw':base64.urlsafe_b64encode(message.as_string()) 
      } 
     }, 
     headers={'content-type':'application/json'} 
    )[1] 

    return obj 

这是错误消息我在谷歌开发者控制台登录选项卡搞定。

Exception on /emailDoc [POST] 
Traceback (most recent call last): 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/flask/app.py", line 1817, in wsgi_app 
    response = self.full_dispatch_request() 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/flask/app.py", line 1477, in full_dispatch_request 
    rv = self.handle_user_exception(e) 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/flask/app.py", line 1381, in handle_user_exception 
    reraise(exc_type, exc_value, tb) 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/flask/app.py", line 1475, in full_dispatch_request 
    rv = self.dispatch_request() 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/flask/app.py", line 1461, in dispatch_request 
    return self.view_functions[rule.endpoint](**req.view_args) 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/main.py", line 471, in emailDoc 
    headers={'content-type':'application/json'} 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/oauth2client/client.py", line 589, in new_request 
    redirections, connection_type) 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/httplib2/__init__.py", line 1593, in request 
    (response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey) 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/httplib2/__init__.py", line 1335, in _request 
    (response, content) = self._conn_request(conn, request_uri, method, body, headers) 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/httplib2/__init__.py", line 1291, in _conn_request 
    response = conn.getresponse() 
    File "/base/data/home/runtimes/python27/python27_dist/lib/python2.7/gae_override/httplib.py", line 522, in getresponse 
    **extra_kwargs) 
    File "/base/data/home/apps/s~admin-app/1.388311669567787470/lib/httplib2/__init__.py", line 1091, in fixed_fetch 
    validate_certificate=validate_certificate) 
    File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/api/urlfetch.py", line 270, in fetch 
    allow_truncated, follow_redirects, validate_certificate) 
    File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/api/urlfetch.py", line 326, in make_fetch_call 
    request.set_payload(payload) 
    File "cpp_message.pyx", line 124, in cpp_message.SetScalarAccessors.Setter (third_party/apphosting/python/protobuf/proto1/cpp_message.cc:2229) 
TypeError: <type 'dict'> has type <type 'dict'>, but expected one of: str, unicode 

Answer 1

地方在你的代码你发送一个字典而不是一个字符串。我建议你使用gmail python library，这是非常快的前锋，他们有代码捕捉每一个电话。

"""Generates and submits an email as a draft. 
""" 

import base64 
from email.mime.audio import MIMEAudio 
from email.mime.base import MIMEBase 
from email.mime.image import MIMEImage 
from email.mime.multipart import MIMEMultipart 
from email.mime.text import MIMEText 
import mimetypes 
import os 

from apiclient import errors 


def CreateDraft(service, user_id, message_body): 
    """Create and insert a draft email. Print the returned draft's message and id. 

    Args: 
    service: Authorized Gmail API service instance. 
    user_id: User's email address. The special value "me" 
    can be used to indicate the authenticated user. 
    message_body: The body of the email message, including headers. 

    Returns: 
    Draft object, including draft id and message meta data. 
    """ 
    try: 
    message = {'message': message_body} 
    draft = service.users().drafts().create(userId=user_id, body=message).execute() 

    print 'Draft id: %s\nDraft message: %s' % (draft['id'], draft['message']) 

    return draft 
    except errors.HttpError, error: 
    print 'An error occurred: %s' % error 
    return None 


def CreateMessage(sender, to, subject, message_text): 
    """Create a message for an email. 

    Args: 
    sender: Email address of the sender. 
    to: Email address of the receiver. 
    subject: The subject of the email message. 
    message_text: The text of the email message. 

    Returns: 
    An object containing a base64 encoded email object. 
    """ 
    message = MIMEText(message_text) 
    message['to'] = to 
    message['from'] = sender 
    message['subject'] = subject 
    return {'raw': base64.b64encode(message.as_string())} 


def CreateMessageWithAttachment(sender, to, subject, message_text, file_dir, 
           filename): 
    """Create a message for an email. 

    Args: 
    sender: The email address of the sender. 
    to: The email address of the receiver. 
    subject: The subject of the email message. 
    message_text: The text of the email message. 
    file_dir: The directory containing the file to be attached. 
    filename: The name of the file to be attached. 

    Returns: 
    An object containing a base64 encoded email object. 
    """ 
    message = MIMEMultipart() 
    message['to'] = to 
    message['from'] = sender 
    message['subject'] = subject 

    msg = MIMEText(message_text) 
    message.attach(msg) 

    path = os.path.join(file_dir, filename) 
    content_type, encoding = mimetypes.guess_type(path) 

    if content_type is None or encoding is not None: 
    content_type = 'application/octet-stream' 
    main_type, sub_type = content_type.split('/', 1) 
    if main_type == 'text': 
    fp = open(path, 'rb') 
    msg = MIMEText(fp.read(), _subtype=sub_type) 
    fp.close() 
    elif main_type == 'image': 
    fp = open(path, 'rb') 
    msg = MIMEImage(fp.read(), _subtype=sub_type) 
    fp.close() 
    elif main_type == 'audio': 
    fp = open(path, 'rb') 
    msg = MIMEAudio(fp.read(), _subtype=sub_type) 
    fp.close() 
    else: 
    fp = open(path, 'rb') 
    msg = MIMEBase(main_type, sub_type) 
    msg.set_payload(fp.read()) 
    fp.close() 

    msg.add_header('Content-Disposition', 'attachment', filename=filename) 
    message.attach(msg) 

    return {'raw': base64.b64encode(message.as_string())} 

Answer 2

http.request要求body=是一个字符串。您dict通过它之前，你必须json.dumps。

# HTTP Request 
obj = http.request(
    uri='https://www.googleapis.com/gmail/v1/users/me/drafts', 
    method='POST', 
    # json encoded string 
    body=json.dumps({ 
     'message': { 
     'raw':base64.urlsafe_b64encode(message.as_string()) 
     } 
    }), 
    headers={'content-type':'application/json'} 
)[1]