Microsoft graph api 来自Microsoft Graph'；s list_附件API，偶尔返回错误

API响应缓慢，有时返回既没有代码也没有说明的错误消息

为了给API的响应计时，我触发了它20次，然后记录了每次API调用的总时间和时间，以秒为单位

PFB用于测试列表附件API的

python

脚本

# Initialize variables to track error and success
error_count = 0
success_count = 0

# Allow token scope to not match requested scope. (Other auth libraries allow
# this, but Requests-OAuthlib raises an exception on scope mismatch by default.)
os.environ['OAUTHLIB_RELAX_TOKEN_SCOPE'] = '1'

# Define the method to fetch attachments for a message
def fetch_attachment():
    global error_count
    global success_count
    API_ROOT = 'https://graph.microsoft.com/'
    API_VERSION = 'v1.0'
    endpoint = API_ROOT + API_VERSION + RESOURCE
    response = msgraph_session.get(endpoint).json()
    if 'error' in response:
        error_count += 1
        LOG.info("Response from the attachments API is %r", response)
    else:
        success_count += 1


# Declare the statement that you want to time
STMT = '''
from __main__ import fetch_attachment
fetch_attachment()
'''

# Run the method and time it
if __name__ == '__main__':
    time = timeit.timeit(STMT, number=20)  # We will run the statement 20 times
    LOG.info("Total time : %s", time)
    LOG.info("Time per call: %s", float(time)/20)
    LOG.info("Error Count %s", error_count)
    LOG.info("Success Count %s", success_count)

输出

2018-08-02 11:36:53,510 - INFO - __main__ - Total time : 407.309007168
2018-08-02 11:36:53,510 - INFO - __main__ - Time per call: 20.3654503584
2018-08-02 11:36:53,511 - INFO - __main__ - Error Count 4
2018-08-02 11:36:53,511 - INFO - __main__ - Success Count 16

在20次中，有4次返回以下错误消息

{
   "error":{
      "innerError":{
         "date":"2018-08-02T18:32:27",
         "request-id":"a52a676c-20a6-46c8-a71f-24ce35b166d7"
      },
      "message":"",
      "code":"UnknownError"
   }
}

阿比

根据您的信息，我想您希望调用API

/me/messages/{id}/attachments

。根据我的测试，当我在邮件中添加一个附件时，调用这个api并不慢。 但是当添加十个附件时，速度太慢了。因为它会响应每个附件的内容，所以如果每个文件都太大，则速度会很慢

我们可以找到这样的响应部分：

{

            "@odata.type": "#microsoft.graph.fileAttachment",

            "id": "{attachmentID}",

            "lastModifiedDateTime": "2018-08-14T07:18:21Z",

            "name": "{attachment name}",

            "contentType": "{attachment type}",

            "contentBytes": ""

 }

我认为我们可以使用查询参数来定制响应。我们可以添加查询参数，使其响应不包含文件内容。我们可以通过如下API获得每个

附件id

：

{

            "@odata.type": "#microsoft.graph.fileAttachment",

            "id": "{attachmentID}",

            "lastModifiedDateTime": "2018-08-14T07:18:21Z",

            "name": "{attachment name}",

            "contentType": "{attachment type}",

            "contentBytes": ""

 }

https://graph.microsoft.com/beta/me/messages/{message id}/附件？$select=id、名称、大小

然后我们可以通过附件id获取附件的内容

https://graph.microsoft.com/beta/me/messages/{message id}/attachments/{attachment id}