Entity Key isn't set

Hi! When using this library to query an SAP ByD OData service I get an empty entity:

When I enable debugger it looks like it’s getting the data I want, just not setting the entity as expected/putting it somewhere I can access (see the last debug statement, I put ** around it):

>>> threads = byd_client.entity_sets.BusinessPartnerCollection.get_entity('00163E0DBAC41ED7AD87562C419D1A6C').execute()
... 
DEBUG:pyodata.service:Detected single property key, adding pair ObjectID->00163E0DBAC41ED7AD87562C419D1A6C to keyproperties
INFO:pyodata.service:Getting entity BusinessPartner for key 00163E0DBAC41ED7AD87562C419D1A6C and args {}
DEBUG:pyodata.service:New instance of EntityGetRequest for last segment: BusinessPartnerCollection
DEBUG:pyodata.service:Send (execute) GET request to https://my340402.sapbydesign.com/sap/byd/odata/cust/v1/accountinfo/BusinessPartnerCollection('00163E0DBAC41ED7AD87562C419D1A6C')
DEBUG:pyodata.service:  query params: {}
DEBUG:pyodata.service:  headers: {'Accept': 'application/json'}
DEBUG:urllib3.connectionpool:https://my340402.sapbydesign.com:443 "GET /sap/byd/odata/cust/v1/accountinfo/BusinessPartnerCollection('00163E0DBAC41ED7AD87562C419D1A6C') HTTP/1.1" 200 576
DEBUG:pyodata.service:Received response
DEBUG:pyodata.service:  url: https://my340402.sapbydesign.com/sap/byd/odata/cust/v1/accountinfo/BusinessPartnerCollection('00163E0DBAC41ED7AD87562C419D1A6C')
DEBUG:pyodata.service:  headers: {'content-type': 'application/json; charset=utf-8', 'content-length': '576', 'cache-control': 'no-cache, no-store', 'dataserviceversion': '2.0', 'c4c-odata-response-time': '111  ms', 'strict-transport-security': 'max-age=31536000; includeSubDomains'}
DEBUG:pyodata.service:  status code: 200
DEBUG:pyodata.service:  body: {"d":{"results":{"__metadata":{"uri":"https://my340402.sapbydesign.com/sap/byd/odata/cust/v1/accountinfo/BusinessPartnerCollection('00163E0DBAC41ED7AD87562C419D1A6C')","type":"cust.BusinessPartner"},"ObjectID":"00163E0DBAC41ED7AD87562C419D1A6C","RoleCode":"CRM000","StartDate":"\/Date(-62135769600000)\/","EndDate":"\/Date(253402214400000)\/","InternalID":"1060169","BusinessPartnerDefaultWeb":{"__deferred":{"uri":"https://my340402.sapbydesign.com/sap/byd/odata/cust/v1/accountinfo/BusinessPartnerCollection('00163E0DBAC41ED7AD87562C419D1A6C')/BusinessPartnerDefaultWeb"}}}}}
**DEBUG:pyodata.service:New entity proxy instance of type BusinessPartner from properties: {'results': {'__metadata': {'uri': "https://my340402.sapbydesign.com/sap/byd/odata/cust/v1/accountinfo/BusinessPartnerCollection('00163E0DBAC41ED7AD87562C419D1A6C')", 'type': 'cust.BusinessPartner'}, 'ObjectID': '00163E0DBAC41ED7AD87562C419D1A6C', 'RoleCode': 'CRM000', 'StartDate': '/Date(-62135769600000)/', 'EndDate': '/Date(253402214400000)/', 'InternalID': '1060169', 'BusinessPartnerDefaultWeb': {'__deferred': {'uri': "https://my340402.sapbydesign.com/sap/byd/odata/cust/v1/accountinfo/BusinessPartnerCollection('00163E0DBAC41ED7AD87562C419D1A6C')/BusinessPartnerDefaultWeb"}}}}**
INFO:pyodata.service:Initiating property request for __len__
INFO:pyodata.service:Initiating property request for __len__
INFO:pyodata.service:Initiating property request for url

As a result I seem to get an error when I try to get a property from that:

>>> threads.InternalID
INFO:pyodata.service:Initiating property request for InternalID
Traceback (most recent call last):
  File "C:\Users\dwilliams\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyodata\v2\service.py", line 783, in __getattr__
    return self._cache[attr]
KeyError: 'InternalID'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "C:\Users\dwilliams\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyodata\v2\service.py", line 786, in __getattr__
    value = self.get_proprty(attr).execute()
  File "C:\Users\dwilliams\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyodata\v2\service.py", line 847, in get_proprty
    path = urljoin(self.get_path(), name)
  File "C:\Users\dwilliams\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pyodata\v2\service.py", line 830, in get_path
    return self._entity_set._name + self._entity_key.to_key_string()  # pylint: disable=protected-access
AttributeError: 'NoneType' object has no attribute 'to_key_string'
INFO:pyodata.service:Initiating property request for __len__
INFO:pyodata.service:Initiating property request for __len__
INFO:pyodata.service:Initiating property request for url

If I do something like this, it sets the entity key for each entity:

>>> bp_coll = byd_client.entity_sets.BusinessPartnerCollection.get_entities().select('ObjectID,InternalID').execute()
>>> print(bp_coll[0].InternalID)
'NBS'

Am I doing something wrong here…?

Thanks for your time and expertise, Dan Williams

[filak-sap]

The $metadata doesn’t seem to support JSON:

Yep, sorry about that, I forgot to mention that I need only the entity.

Thank you! Now, I will try to fix the problem.

[squeakyboots]

Hi @sti0 ! I do it like this:

def byd_client():
    account_url = "https://my000000.sapbydesign.com/sap/byd/odata/cust/v1/your_service/"
    session = requests.session()
    session.auth = ('your_user', 'your_password')
    session.headers['odata-v2-strict-json-format'] = 'true'
    # session.headers['Accept'] = 'odata=minimalmetadata'

    def get_csrf(url):
        try:
            session.headers['x-csrf-token'] = 'fetch'
            r = session.get(url)
            session.headers['x-csrf-token'] = r.headers['x-csrf-token']
        except KeyError:
            print(f'Failed retrieve CSRF Token. Check your credentials and make sure the connection is up.')

    get_csrf(account_url)
    return pyodata.Client(account_url, session)

byd_client = byd_client()