def verify_otctrade_data(
data: ExternalTrade,
) -> Tuple[Optional[typing.Trade], str]:
"""Takes in the trade data dictionary, validates it and returns a trade instance"""
for field in otc_fields:
if field not in data:
return None, '{} was not provided'.format(field)
if data[field] in ('', None) and field not in otc_optional_fields:
return None, '{} was empty'.format(field)
if field in otc_numerical_fields and not is_number(data[field]):
return None, '{} should be a number'.format(field)
pair = data['otc_pair']
assert isinstance(pair, str)
first = get_pair_position(pair, 'first')
second = get_pair_position(pair, 'second')
trade_type = cast(str, data['otc_type'])
amount = FVal(data['otc_amount'])
rate = FVal(data['otc_rate'])
fee = FVal(data['otc_fee'])
fee_currency = cast(typing.Asset, data['otc_fee_currency'])
try:
assert isinstance(data['otc_timestamp'], str)
timestamp = createTimeStamp(data['otc_timestamp'], formatstr='%d/%m/%Y %H:%M')
except ValueError as e:
return None, 'Could not process the given datetime: {}'.format(e)
log.debug(
'Creating OTC trade data',
sensitive_log=True,
pair=pair,
trade_type=trade_type,
amount=amount,
rate=rate,
fee=fee,
fee_currency=fee_currency,
)
if data['otc_fee_currency'] not in (first, second):
return None, 'Trade fee currency should be one of the two in the currency pair'
if data['otc_type'] not in ('buy', 'sell'):
return None, 'Trade type can only be buy or sell'
trade = typing.Trade(
time=timestamp,
location='external',
pair=cast(str, pair),
trade_type=trade_type,
amount=amount,
rate=rate,
fee=fee,
fee_currency=fee_currency,
link=cast(str, data['otc_link']),
notes=cast(str, data['otc_notes']),
)
return trade, ''
def check_otctrade_data_valid(data):
for field in otc_fields:
if field not in data:
return None, '{} was not provided'.format(field)
if data[field] in ('', None) and field not in otc_optional_fields:
return None, '{} was empty'.format(field)
if field in otc_numerical_fields and not is_number(data[field]):
return None, '{} should be a number'.format(field)
pair = data['otc_pair']
first = get_pair_position(pair, 'first')
second = get_pair_position(pair, 'second')
if data['otc_fee_currency'] not in (first, second):
return None, 'Trade fee currency should be one of the two in the currency pair'
if data['otc_type'] not in ('buy', 'sell'):
return None, 'Trade type can only be buy or sell'
try:
timestamp = createTimeStamp(data['otc_time'],
formatstr='%d/%m/%Y %H:%M')
except ValueError as e:
return None, 'Could not process the given datetime: {}'.format(e)
return timestamp, ''