def test_deserialize_trade():
trade1 = deserialize_trade(raw_trade1)
assert isinstance(trade1, Trade)
assert trade1.timestamp == Timestamp(1516985746)
assert trade1.location == Location.EXTERNAL
assert trade1.pair == TradePair('ETH_EUR')
assert trade1.trade_type == TradeType.BUY
assert trade1.amount == FVal('20.51')
assert trade1.rate == FVal('134.1')
assert trade1.fee == FVal('0.01')
assert trade1.fee_currency == A_ETH
assert isinstance(trade1.fee_currency, Asset)
assert trade1.link == ''
assert trade1.notes == ''
trade2 = deserialize_trade(raw_trade2)
assert isinstance(trade2, Trade)
assert trade2.timestamp == Timestamp(1537985746)
assert trade2.location == Location.KRAKEN
assert trade2.pair == TradePair('ETH_BTC')
assert trade2.trade_type == TradeType.SELL
assert trade2.amount == FVal('2.80')
assert trade2.rate == FVal('0.1234')
assert trade2.fee == FVal('0.01')
assert trade2.fee_currency == A_ETH
assert isinstance(trade2.fee_currency, Asset)
assert trade2.link == 'a link can be here'
assert trade2.notes == 'notes can be here'
another_raw_trade = raw_trade2.copy()
another_raw_trade['fee_currency'] = 'UNKNOWN'
with pytest.raises(UnknownAsset):
deserialize_trade(another_raw_trade)
def assert_cointracking_import_results(rotki: Rotkehlchen):
"""A utility function to help assert on correctness of importing data from cointracking.info"""
trades = rotki.data.db.get_trades()
asset_movements = rotki.data.db.get_asset_movements()
warnings = rotki.msg_aggregator.consume_warnings()
errors = rotki.msg_aggregator.consume_warnings()
assert len(errors) == 0
assert len(warnings) == 3
expected_trades = [
Trade(
timestamp=Timestamp(1566687660),
location=Location.COINBASE,
pair=TradePair('ETH_EUR'),
trade_type=TradeType.BUY,
amount=AssetAmount(FVal('0.05772716')),
rate=Price(FVal('190.3783245183029963712055123')),
fee=Fee(ZERO),
fee_currency=A_ETH,
link='',
notes='',
),
Trade(
timestamp=Timestamp(1567418400),
location=Location.EXTERNAL,
pair=TradePair('BTC_USD'),
trade_type=TradeType.BUY,
amount=AssetAmount(FVal('0.00100000')),
rate=Price(ZERO),
fee=Fee(ZERO),
fee_currency=A_BTC,
link='',
notes='Just a small gift from someone',
)
]
assert expected_trades == trades
expected_movements = [
AssetMovement(
location=Location.POLONIEX,
category=AssetMovementCategory.DEPOSIT,
timestamp=Timestamp(1565848620),
asset=A_XMR,
amount=AssetAmount(FVal('5')),
fee_asset=A_XMR,
fee=Fee(ZERO),
link='',
),
AssetMovement(
location=Location.COINBASE,
category=AssetMovementCategory.WITHDRAWAL,
timestamp=Timestamp(1566726120),
asset=A_ETH,
amount=AssetAmount(FVal('0.05770427')),
fee_asset=A_ETH,
fee=Fee(ZERO),
link='',
)
]
assert expected_movements == asset_movements
def test_deserialize_trade():
trade1 = deserialize_trade(raw_trade1)
assert isinstance(trade1, Trade)
assert trade1.timestamp == Timestamp(1516985746)
assert trade1.location == 'external'
assert trade1.pair == TradePair('ETH_EUR')
assert trade1.trade_type == TradeType.BUY
assert trade1.amount == FVal('20.51')
assert trade1.rate == FVal('134.1')
assert trade1.fee == FVal('0.01')
assert trade1.fee_currency == A_ETH
assert trade1.link == ''
assert trade1.notes == ''
trade2 = deserialize_trade(raw_trade2)
assert isinstance(trade2, Trade)
assert trade2.timestamp == Timestamp(1537985746)
assert trade2.location == 'kraken'
assert trade2.pair == TradePair('ETH_BTC')
assert trade2.trade_type == TradeType.SELL
assert trade2.amount == FVal('2.80')
assert trade2.rate == FVal('0.1234')
assert trade2.fee == FVal('0.01')
assert trade2.fee_currency == A_ETH
assert trade2.link == 'a link can be here'
assert trade2.notes == 'notes can be here'
def test_query_online_trade_history(mock_bitstamp, start_ts, since_id):
"""Test `since_id` value will change depending on `start_ts` value.
Also tests `db_trades` are sorted by `link` (as int) in ascending mode.
"""
trades = [
Trade(
timestamp=1606995000,
location=Location.BITSTAMP,
pair=TradePair('EUR_USD'),
trade_type=TradeType.SELL,
amount=FVal("1.22000000"),
rate=FVal("0.81967213"),
fee=FVal("0.00610000"),
fee_currency=Asset('EUR'),
link='5',
notes='',
),
Trade(
timestamp=1606901400,
location=Location.BITSTAMP,
pair=TradePair('BTC_USD'),
trade_type=TradeType.BUY,
amount=FVal("0.50000000"),
rate=FVal("0.00005000"),
fee=FVal("20.00000000"),
fee_currency=Asset('USD'),
link='2',
notes='',
),
]
database = MagicMock()
database.get_trades.return_value = trades
expected_call = call(
start_ts=start_ts,
end_ts=2,
options={
'since_id': since_id,
'limit': 1000,
'sort': 'asc',
'offset': 0,
},
case='trades',
)
with patch.object(mock_bitstamp,
'db',
new_callable=MagicMock(return_value=database)):
with patch.object(mock_bitstamp,
'_api_query_paginated') as mock_api_query_paginated:
mock_bitstamp.query_online_trade_history(
start_ts=Timestamp(start_ts),
end_ts=Timestamp(2),
)
assert mock_api_query_paginated.call_args == expected_call
def deserialize_trade_pair(pair: str) -> TradePair:
"""Takes a trade pair string, makes sure it's valid, wraps it in proper type and returns it"""
try:
pair_get_assets(TradePair(pair))
except UnprocessableTradePair as e:
raise DeserializationError(str(e))
except UnknownAsset as e:
raise DeserializationError(
f'Unknown asset {e.asset_name} found while processing trade pair',
)
return TradePair(pair)
def test_deserialize_trade_sell(mock_bitstamp):
raw_trade = {
'id': 5,
'type': 2,
'datetime': '2020-12-03 11:30:00',
'eur': '-1.00000000',
'usd': '1.22000000',
'eur_usd': '0.81967213',
'fee': '0.00610000',
'order_id': 3,
}
expected_trade = Trade(
timestamp=1606995000,
location=Location.BITSTAMP,
pair=TradePair('EUR_USD'),
trade_type=TradeType.SELL,
amount=FVal('1'),
rate=FVal('0.81967213'),
fee=FVal('0.00610000'),
fee_currency=Asset('USD'),
link='5',
notes='',
)
trade = mock_bitstamp._deserialize_trade(raw_trade)
assert trade == expected_trade
raw_trade = {
'id': 10,
'type': 2,
'datetime': '2019-06-25 21:41:08.802256',
'btc': '-1.81213214',
'usd': '0',
'btc_eur': '10119.82',
'eur': '18338.45',
'fee': '40.35000',
'order_id': 3,
}
expected_trade = Trade(
timestamp=1561498868,
location=Location.BITSTAMP,
pair=TradePair('BTC_EUR'),
trade_type=TradeType.SELL,
amount=FVal('1.81213214'),
rate=FVal('10119.82'),
fee=FVal('40.35'),
fee_currency=Asset('EUR'),
link='10',
notes='',
)
trade = mock_bitstamp._deserialize_trade(raw_trade)
assert trade == expected_trade
def get_pair_position(pair: TradePair, position: str) -> Asset:
assert position == 'first' or position == 'second'
currencies = pair.split('_')
if len(currencies) != 2:
raise ValueError("Could not split {} pair".format(pair))
currency = currencies[0] if position == 'first' else currencies[1]
return cast(Asset, currency)
def choose_pair(
self,
timestamp: Timestamp,
price_query: Callable[[Asset, Asset, Timestamp], FVal],
) -> TradePair:
"""Choose a random pair to trade from the available pairs at the selected timestamp"""
choices = set(list(self.asset_pairs['result'].keys()))
found = False
while len(choices) != 0:
pair = random.choice(tuple(choices))
choices.remove(pair)
pair = kraken_to_world_pair(pair)
base, quote = pair_get_assets(pair)
kbase = WORLD_TO_KRAKEN[base]
kquote = WORLD_TO_KRAKEN[quote]
if kbase in self.balances_dict or kquote in self.balances_dict:
# Before choosing make sure that at the selected timestamp both of
# the pair assets exist (had a price)
if not assets_exist_at_time(base, quote, timestamp, price_query):
continue
found = True
break
if not found:
raise ValueError('Could not find a pair to trade with the current funds')
return TradePair(f'{base}_{quote}')
def test_deserialize_trade_sell(mock_bitfinex):
mock_bitfinex.currency_map = {'UST': 'USDt'}
mock_bitfinex.pair_bfx_symbols_map = {'ETHUST': ('ETH', 'UST')}
raw_result = [
399251013,
'tETHUST',
1573485493000,
33963608932,
-0.26334268,
187.37,
'LIMIT',
None,
-1,
-0.09868591,
'USD',
]
expected_trade = Trade(
timestamp=Timestamp(1573485493),
location=Location.BITFINEX,
pair=TradePair('ETH_USDT'),
trade_type=TradeType.SELL,
amount=AssetAmount(FVal('0.26334268')),
rate=Price(FVal('187.37')),
fee=Fee(FVal('0.09868591')),
fee_currency=Asset('USD'),
link='399251013',
notes='',
)
trade = mock_bitfinex._deserialize_trade(raw_result=raw_result)
assert trade == expected_trade
def choose_pair(
self,
timestamp: Timestamp,
price_query: Callable[[Asset, Asset, Timestamp], FVal],
) -> TradePair:
"""Choose a random pair to trade from the available pairs at the selected timestamp"""
choices = set(list(self._symbols_to_pair.keys()))
found = False
while len(choices) != 0:
pair = random.choice(tuple(choices))
choices.remove(pair)
binance_pair = self._symbols_to_pair[pair]
bbase = binance_pair.base_asset
bquote = binance_pair.quote_asset
base = binance_to_world(bbase)
quote = binance_to_world(bquote)
if bbase in self.balances_dict or bquote in self.balances_dict:
if bbase in DISALLOWED_ASSETS or bquote in DISALLOWED_ASSETS:
continue
# Before choosing make sure that at the selected timestamp both of
# the pair assets exist (had a price)
if not assets_exist_at_time(base, quote, timestamp,
price_query):
continue
found = True
break
if not found:
raise ValueError(
'Could not find a pair to trade with the current funds')
return TradePair(f'{base}_{quote}')
def pair_get_assets(pair: TradePair) -> Tuple[Asset, Asset]:
"""Returns a tuple with the (base, quote) assets"""
assets = pair.split('_')
if len(assets) != 2:
raise ValueError(f'Could not split {pair} pair')
return cast(Asset, assets[0]), cast(Asset, assets[1])
def test_deserialize_trade_buy(mock_bitstamp):
raw_trade = {
'id': 2,
'type': 2,
'datetime': '2020-12-02 09:30:00',
'btc': '0.50000000',
'usd': '-10000.00000000',
'btc_usd': '0.00005000',
'fee': '20.00000000',
'order_id': 2,
}
expected_trade = Trade(
timestamp=1606901400,
location=Location.BITSTAMP,
pair=TradePair('BTC_USD'),
trade_type=TradeType.BUY,
amount=FVal("0.50000000"),
rate=FVal("0.00005000"),
fee=FVal("20.00000000"),
fee_currency=Asset('USD'),
link='2',
notes='',
)
trade = mock_bitstamp._deserialize_trade(raw_trade)
assert trade == expected_trade
def mock_exchange_data_in_db(exchanges, rotki) -> None:
db = rotki.data.db
for exchange_name in exchanges:
db.add_trades([
Trade(
timestamp=Timestamp(1),
location=deserialize_location(exchange_name),
pair=TradePair('BTC_ETH'),
trade_type=TradeType.BUY,
amount=AssetAmount(FVal(1)),
rate=Price(FVal(1)),
fee=Fee(FVal('0.1')),
fee_currency=A_ETH,
link='foo',
notes='boo',
)
])
db.update_used_query_range(name=f'{exchange_name}_trades',
start_ts=0,
end_ts=9999)
db.update_used_query_range(name=f'{exchange_name}_margins',
start_ts=0,
end_ts=9999)
db.update_used_query_range(name=f'{exchange_name}_asset_movements',
start_ts=0,
end_ts=9999) # noqa: E501
def gemini_symbol_to_pair(symbol: str) -> TradePair:
"""Turns a gemini symbol product into our trade pair format
- Can raise UnprocessableTradePair if symbol is in unexpected format
- Case raise UnknownAsset if any of the pair assets are not known to Rotki
"""
if len(symbol) == 6:
base_asset = Asset(symbol[:3].upper())
quote_asset = Asset(symbol[3:].upper())
elif len(symbol) == 7:
try:
base_asset = Asset(symbol[:4].upper())
quote_asset = Asset(symbol[4:].upper())
except UnknownAsset:
base_asset = Asset(symbol[:3].upper())
quote_asset = Asset(symbol[3:].upper())
elif len(symbol) == 8:
if 'storj' in symbol:
base_asset = Asset(symbol[:5].upper())
quote_asset = Asset(symbol[5:].upper())
else:
base_asset = Asset(symbol[:4].upper())
quote_asset = Asset(symbol[4:].upper())
else:
raise UnprocessableTradePair(symbol)
return TradePair(f'{base_asset.identifier}_{quote_asset.identifier}')
def query_online_trade_history(
self,
start_ts: Timestamp,
end_ts: Timestamp,
) -> List[Trade]:
raw_data = self.return_trade_history(
currency_pair='all',
start=start_ts,
end=end_ts,
)
results_length = 0
for _, v in raw_data.items():
results_length += len(v)
log.debug('Poloniex trade history query', results_num=results_length)
if results_length >= 10000:
raise ValueError(
'Poloniex api has a 10k limit to trade history. Have not implemented'
' a solution for more than 10k trades at the moment', )
our_trades = []
for pair, trades in raw_data.items():
for trade in trades:
category = trade.get('category', None)
try:
if category == 'exchange' or category == 'settlement':
our_trades.append(
trade_from_poloniex(trade, TradePair(pair)))
elif category == 'marginTrade':
# We don't take poloniex margin trades into account at the moment
continue
else:
self.msg_aggregator.add_error(
f'Error deserializing a poloniex trade. Unknown trade '
f'category {category} found.', )
continue
except UnsupportedAsset as e:
self.msg_aggregator.add_warning(
f'Found poloniex trade with unsupported asset'
f' {e.asset_name}. Ignoring it.', )
continue
except UnknownAsset as e:
self.msg_aggregator.add_warning(
f'Found poloniex trade with unknown asset'
f' {e.asset_name}. Ignoring it.', )
continue
except (UnprocessableTradePair, DeserializationError) as e:
self.msg_aggregator.add_error(
'Error deserializing a poloniex trade. Check the logs '
'and open a bug report.', )
log.error(
'Error deserializing poloniex trade',
trade=trade,
error=str(e),
)
continue
return our_trades
def test_deserialize_v1_trade(mock_kucoin):
raw_result = {
'id': 'xxxx',
'symbol': 'NANO-ETH',
'dealPrice': '0.015743',
'dealValue': '0.00003441',
'amount': '0.002186',
'fee': '0.00000003',
'side': 'sell',
'createdAt': 1520471876,
}
expected_trade = Trade(
timestamp=Timestamp(1520471876),
location=Location.KUCOIN,
pair=TradePair('NANO_ETH'),
trade_type=TradeType.SELL,
amount=AssetAmount(FVal('0.002186')),
rate=Price(FVal('0.015743')),
fee=Fee(FVal('0.00000003')),
fee_currency=Asset('ETH'),
link='xxxx',
notes='',
)
trade = mock_kucoin._deserialize_trade(
raw_result=raw_result,
case=KucoinCase.OLD_TRADES,
)
assert trade == expected_trade
def test_deserialize_trade_sell(mock_bitstamp):
raw_trade = {
'id': 5,
'type': 2,
'datetime': '2020-12-03 11:30:00',
'eur': '-1.00000000',
'usd': '1.22000000',
'eur_usd': '0.81967213',
'fee': '0.00610000',
'order_id': 3,
}
expected_trade = Trade(
timestamp=1606995000,
location=Location.BITSTAMP,
pair=TradePair('EUR_USD'),
trade_type=TradeType.SELL,
amount=FVal("1.22000000"),
rate=FVal("0.81967213"),
fee=FVal("0.00610000"),
fee_currency=Asset('EUR'),
link='5',
notes='',
)
trade = mock_bitstamp._deserialize_trade(raw_trade)
assert trade == expected_trade
def _deserialize_trade(self, raw_result: List[Any]) -> Trade:
"""Process a trade result from Bitfinex and deserialize it.
The base and quote assets are instantiated using the `fee_currency_symbol`
(from raw_result[10]) over the pair (from raw_result[1]).
Known pairs format: 'tETHUST', 'tETH:UST'.
Can raise DeserializationError.
Schema reference in:
https://docs.bitfinex.com/reference#rest-auth-trades
"""
amount = deserialize_asset_amount(raw_result[4])
trade_type = TradeType.BUY if amount >= ZERO else TradeType.SELL
bfx_pair = self._process_bfx_pair(raw_result[1])
if bfx_pair not in self.pair_bfx_symbols_map:
raise DeserializationError(
f'Could not deserialize bitfinex trade pair {raw_result[1]}. '
f'Raw trade: {raw_result}', )
bfx_base_asset_symbol, bfx_quote_asset_symbol = self.pair_bfx_symbols_map[
bfx_pair]
try:
base_asset = asset_from_bitfinex(
bitfinex_name=bfx_base_asset_symbol,
currency_map=self.currency_map,
)
quote_asset = asset_from_bitfinex(
bitfinex_name=bfx_quote_asset_symbol,
currency_map=self.currency_map,
)
fee_asset = asset_from_bitfinex(
bitfinex_name=raw_result[10],
currency_map=self.currency_map,
)
except (UnknownAsset, UnsupportedAsset) as e:
asset_tag = 'Unknown' if isinstance(
e, UnknownAsset) else 'Unsupported'
raise DeserializationError(
f'{asset_tag} {e.asset_name} found while processing trade pair due to: {str(e)}',
) from e
trade = Trade(
timestamp=Timestamp(int(raw_result[2] / 1000)),
location=Location.BITFINEX,
pair=TradePair(
f'{base_asset.identifier}_{quote_asset.identifier}'),
trade_type=trade_type,
amount=AssetAmount(abs(amount)),
rate=deserialize_price(raw_result[5]),
fee=Fee(abs(deserialize_fee(raw_result[9]))),
fee_currency=fee_asset,
link=str(raw_result[0]),
notes='',
)
return trade
def query_online_trade_history(
self,
start_ts: Timestamp,
end_ts: Timestamp,
) -> List[Trade]:
raw_data = self.return_trade_history(
start=start_ts,
end=end_ts,
)
results_length = 0
for _, v in raw_data.items():
results_length += len(v)
log.debug('Poloniex trade history query', results_num=results_length)
our_trades = []
for pair, trades in raw_data.items():
for trade in trades:
category = trade.get('category', None)
try:
if category in ('exchange', 'settlement'):
timestamp = deserialize_timestamp_from_poloniex_date(
trade['date'])
if timestamp < start_ts or timestamp > end_ts:
continue
our_trades.append(
trade_from_poloniex(trade, TradePair(pair)))
elif category == 'marginTrade':
# We don't take poloniex margin trades into account at the moment
continue
else:
self.msg_aggregator.add_error(
f'Error deserializing a poloniex trade. Unknown trade '
f'category {category} found.', )
continue
except UnsupportedAsset as e:
self.msg_aggregator.add_warning(
f'Found poloniex trade with unsupported asset'
f' {e.asset_name}. Ignoring it.', )
continue
except UnknownAsset as e:
self.msg_aggregator.add_warning(
f'Found poloniex trade with unknown asset'
f' {e.asset_name}. Ignoring it.', )
continue
except (UnprocessableTradePair, DeserializationError) as e:
self.msg_aggregator.add_error(
'Error deserializing a poloniex trade. Check the logs '
'and open a bug report.', )
log.error(
'Error deserializing poloniex trade',
trade=trade,
error=str(e),
)
continue
return our_trades
def trade_from_binance(
binance_trade: Dict,
binance_symbols_to_pair: Dict[str, BinancePair],
) -> Trade:
"""Turn a binance trade returned from trade history to our common trade
history format
From the official binance api docs (01/09/18):
https://github.com/binance-exchange/binance-official-api-docs/blob/62ff32d27bb32d9cc74d63d547c286bb3c9707ef/rest-api.md#terminology
base asset refers to the asset that is the quantity of a symbol.
quote asset refers to the asset that is the price of a symbol.
"""
amount = FVal(binance_trade['qty'])
rate = FVal(binance_trade['price'])
binance_pair = binance_symbols_to_pair[binance_trade['symbol']]
timestamp = binance_trade['time']
base_asset = binance_to_world(binance_pair.base_asset)
quote_asset = binance_to_world(binance_pair.quote_asset)
if binance_trade['isBuyer']:
order_type = TradeType.BUY
# e.g. in RDNETH we buy RDN by paying ETH
else:
order_type = TradeType.SELL
fee_currency = binance_trade['commissionAsset']
fee = FVal(binance_trade['commission'])
log.debug(
'Processing binance Trade',
sensitive_log=True,
amount=amount,
rate=rate,
timestamp=timestamp,
pair=binance_trade['symbol'],
base_asset=base_asset,
quote=quote_asset,
order_type=order_type,
commision_asset=binance_trade['commissionAsset'],
fee=fee,
)
return Trade(
timestamp=timestamp,
location='binance',
pair=TradePair(f'{base_asset}_{quote_asset}'),
trade_type=order_type,
amount=amount,
rate=rate,
fee=fee,
fee_currency=fee_currency,
)
def test_invert_pair():
pair = invert_pair('ETH_BTC')
assert pair == TradePair('BTC_ETH')
with pytest.raises(ValueError):
invert_pair('_')
with pytest.raises(ValueError):
invert_pair('ETH_')
with pytest.raises(ValueError):
invert_pair('_BTC')
with pytest.raises(ValueError):
invert_pair('ETH_BTC_USD')
with pytest.raises(UnknownAsset):
invert_pair('ETH_FDFSFDSFDSF')
with pytest.raises(UnknownAsset):
invert_pair('FDFSFDSFDSF_BTC')
pair = invert_pair('ETH_RDN')
assert pair == TradePair('RDN_ETH')
def _split_pair(pair: TradePair) -> Tuple[str, str]:
assets = pair.split('_')
if len(assets) != 2:
# Could not split the pair
raise UnprocessableTradePair(pair)
if len(assets[0]) == 0 or len(assets[1]) == 0:
# no base or no quote asset
raise UnprocessableTradePair(pair)
return assets[0], assets[1]
def _split_pair(pair: TradePair) -> Tuple[str, str]:
assets = pair.split('_')
if len(assets) != 2:
raise ValueError(f'Could not split {pair} pair')
if len(assets[0]) == 0:
raise ValueError(f'Splitting {pair} yielded no base asset')
if len(assets[1]) == 0:
raise ValueError(f'Splitting {pair} yielded no quote asset')
return assets[0], assets[1]
def coinbasepro_to_worldpair(product: str) -> TradePair:
"""Turns a coinbasepro product into our trade pair format
- Can raise UnprocessableTradePair if product is in unexpected format
- Case raise UnknownAsset if any of the pair assets are not known to Rotki
"""
parts = product.split('-')
if len(parts) != 2:
raise UnprocessableTradePair(product)
base_asset = Asset(parts[0])
quote_asset = Asset(parts[1])
return TradePair(f'{base_asset.identifier}_{quote_asset.identifier}')
def trade_from_coinbase(raw_trade: Dict[str, Any]) -> Optional[Trade]:
"""Turns a coinbase transaction into a rotkehlchen Trade.
https://developers.coinbase.com/api/v2?python#buys
If the coinbase transaction is not a trade related transaction returns None
Throws:
- UnknownAsset due to Asset instantiation
- DeserializationError due to unexpected format of dict entries
- KeyError due to dict entires missing an expected entry
"""
if raw_trade['status'] != 'completed':
# We only want to deal with completed trades
return None
if raw_trade['instant']:
raw_time = raw_trade['created_at']
else:
raw_time = raw_trade['payout_at']
timestamp = deserialize_timestamp_from_date(raw_time, 'iso8601',
'coinbase')
trade_type = deserialize_trade_type(raw_trade['resource'])
tx_amount = deserialize_asset_amount(raw_trade['amount']['amount'])
tx_asset = asset_from_coinbase(raw_trade['amount']['currency'],
time=timestamp)
native_amount = deserialize_asset_amount(raw_trade['subtotal']['amount'])
native_asset = asset_from_coinbase(raw_trade['subtotal']['currency'],
time=timestamp)
# in coinbase you are buying/selling tx_asset for native_asset
pair = TradePair(f'{tx_asset.identifier}_{native_asset.identifier}')
amount = tx_amount
# The rate is how much you get/give in quotecurrency if you buy/sell 1 unit of base currency
rate = Price(native_amount / tx_amount)
fee_amount = deserialize_fee(raw_trade['fee']['amount'])
fee_asset = asset_from_coinbase(raw_trade['fee']['currency'],
time=timestamp)
return Trade(
timestamp=timestamp,
location=Location.COINBASE,
pair=pair,
trade_type=trade_type,
amount=amount,
rate=rate,
fee=fee_amount,
fee_currency=fee_asset,
link=str(raw_trade['id']),
)
def deserialize_trade_pair(trade_pair_symbol: str) -> TradePair:
"""May raise:
- UnprocessableTradePair
- UnknownAsset
- UnsupportedAsset
"""
try:
base_asset_symbol, quote_asset_symbol = trade_pair_symbol.split('-')
except ValueError as e:
raise UnprocessableTradePair(trade_pair_symbol) from e
base_asset = asset_from_kucoin(base_asset_symbol)
quote_asset = asset_from_kucoin(quote_asset_symbol)
return TradePair(f'{base_asset.identifier}_{quote_asset.identifier}')
def bittrex_pair_to_world(given_pair: str) -> Tuple[Asset, Asset]:
"""
Turns a pair written in bittrex to way to rotki base/quote asset
Throws:
- UnsupportedAsset due to asset_from_bittrex()
- UnprocessableTradePair if the pair can't be split into its parts
"""
if not isinstance(given_pair, str):
raise DeserializationError(
f'Could not deserialize bittrex trade pair. Expected a string '
f'but found {type(given_pair)}', )
pair = TradePair(given_pair.replace('-', '_'))
base_asset = asset_from_bittrex(get_pair_position_str(pair, 'first'))
quote_asset = asset_from_bittrex(get_pair_position_str(pair, 'second'))
return base_asset, quote_asset
def bittrex_pair_to_world(given_pair: str) -> TradePair:
"""
Turns a pair written in the bittrex way to Rotkehlchen way
Throws:
- UnsupportedAsset due to asset_from_bittrex()
"""
pair = TradePair(given_pair.replace('-', '_'))
base_currency = asset_from_bittrex(get_pair_position_str(pair, 'first'))
quote_currency = asset_from_bittrex(get_pair_position_str(pair, 'second'))
# Since in Bittrex the base currency is the cost currency, iow in Bittrex
# for BTC_ETH we buy ETH with BTC and sell ETH for BTC, we need to turn it
# into the Rotkehlchen way which is following the base/quote approach.
pair = trade_pair_from_assets(quote_currency, base_currency)
return pair
def test_serialize_deserialize_trade():
trade = Trade(
timestamp=Timestamp(1537985746),
location=Location.KRAKEN,
pair=TradePair('ETH_BTC'),
trade_type=TradeType.SELL,
amount=FVal('2.80'),
rate=FVal('0.1234'),
fee=FVal('0.01'),
fee_currency=A_ETH,
link='a link can be here',
notes='notes can be here',
)
serialized_trade = rlk_jsondumps(trade._asdict())
assert serialized_trade == rlk_jsondumps(raw_trade2)
deserialized_trade = deserialize_trade(raw_trade2)
assert deserialized_trade == trade
def bittrex_pair_to_world(given_pair: str) -> TradePair:
"""
Turns a pair written in the bittrex way to Rotkehlchen way
Throws:
- UnsupportedAsset due to asset_from_bittrex()
- UnprocessableTradePair if the pair can't be split into its parts
"""
if not isinstance(given_pair, str):
raise DeserializationError(
f'Could not deserialize bittrex trade pair. Expected a string '
f'but found {type(given_pair)}', )
pair = TradePair(given_pair.replace('-', '_'))
# Check that there is no unsupported asset in the trade
_ = asset_from_bittrex(get_pair_position_str(pair, 'first'))
_ = asset_from_bittrex(get_pair_position_str(pair, 'second'))
return pair