def get_identifiers(self, as_of: dt.date = None) -> dict:
"""
Get asset identifiers
:param as_of: As of date for query
:return: dict of identifiers
**Usage**
Get asset identifiers as of a given date. Where the identifiers are temporal (and can change over time), this
function will return the identifiers as of that point in time. If no date is provided as a parameter, will use
the current PricingContext.
**Examples**
Get current asset identifiers:
>>> gs = SecurityMaster.get_asset("GS", AssetIdentifier.TICKER)
>>> gs.get_identifiers()
Get identifiers as of 1Jan18:
>>> gs.get_identifiers(dt.date(2018,1,1))
Use PricingContext to determine as of date:
>>> with PricingContext(dt.date(2018,1,1)) as ctx:
>>> gs.get_identifiers()
**See also**
:class:`AssetIdentifier`
:func:`get_asset`
"""
if not as_of:
as_of = PricingContext.current.pricing_date
if isinstance(as_of, dt.datetime):
as_of = as_of.date()
valid_ids = set(item.value for item in AssetIdentifier)
xrefs = GsAssetApi.get_asset_xrefs(self.__id)
identifiers = {}
for xref in xrefs:
start_date = xref.startDate
end_date = xref.endDate
if start_date <= as_of <= end_date:
identifiers = {
k.upper(): v
for k, v in xref.identifiers.as_dict().items()
if k.upper() in valid_ids
}
return identifiers
def test_get_asset_xrefs(mocker):
marquee_id = 'MQA1234567890'
mock_response = {
'xrefs': ({
'startDate': '1952-01-01',
'endDate': '2018-12-31',
'identifiers': {
'ric': '.GSTHHOLD',
'bbid': 'GSTHHOLD',
'cusip': '9EQ24FOLD',
'ticker': 'GSTHHOLD'
}
}, {
'startDate': '2019-01-01',
'endDate': '2952-12-31',
'identifiers': {
'ric': '.GSTHHVIP',
'bbid': 'GSTHHVIP',
'cusip': '9EQ24FPE5',
'ticker': 'GSTHHVIP',
}
})
}
expected_response = (GsTemporalXRef(
dt.date(1952, 1, 1), dt.date(2018, 12, 31),
XRef(
ric='.GSTHHOLD',
bbid='GSTHHOLD',
cusip='9EQ24FOLD',
ticker='GSTHHOLD',
)),
GsTemporalXRef(
dt.date(2019, 1, 1), dt.date(2952, 12, 31),
XRef(
ric='.GSTHHVIP',
bbid='GSTHHVIP',
cusip='9EQ24FPE5',
ticker='GSTHHVIP',
)))
# mock GsSession
mocker.patch.object(GsSession.__class__,
'current',
return_value=GsSession.get(Environment.QA, 'client_id',
'secret'))
mocker.patch.object(GsSession.current, '_get', return_value=mock_response)
# run test
response = GsAssetApi.get_asset_xrefs(marquee_id)
GsSession.current._get.assert_called_with(
'/assets/{id}/xrefs'.format(id=marquee_id))
testfixtures.compare(response, expected_response)