fix: missing pairs available with default precision

src/cryptocom/exchange/coins.py

@@ -160,6 +160,7 @@ PERP = Coin("PERP")
 PLA = Coin("PLA")
 POLS = Coin("POLS")
 POLY = Coin("POLY")
+POND = Coin("POND")
 POWR = Coin("POWR")
 PRQ = Coin("PRQ")
 PYR = Coin("PYR")
@@ -211,6 +212,7 @@ TRIBE = Coin("TRIBE")
 TRU = Coin("TRU")
 TUSD = Coin("TUSD")
 UMA = Coin("UMA")
+UNFI = Coin("UNFI")
 UNI = Coin("UNI")
 USDC = Coin("USDC")
 USDP = Coin("USDP")

src/cryptocom/exchange/market.py

@@ -4,6 +4,7 @@ from . import pairs
 from .api import ApiProvider
 from .structs import (
     Candle,
+    DefaultPairDict,
     MarketTicker,
     MarketTrade,
     OrderBook,
@@ -19,12 +20,16 @@ class Exchange:
 
     def __init__(self, api: ApiProvider = None):
         self.api = api or ApiProvider(auth_required=False)
-        self.pairs = {pair.name: pair for pair in pairs.all()}
+        self.pairs = DefaultPairDict(
+            **{pair.name: pair for pair in pairs.all()}
+        )
 
     async def sync_pairs(self):
         """Use this method to sync pairs if you have issues with missing
         pairs in library side."""
-        self.pairs = {pair.name: pair for pair in (await self.get_pairs())}
+        self.pairs = DefaultPairDict(
+            **{pair.name: pair for pair in (await self.get_pairs())}
+        )
 
     async def get_pairs(self) -> List[Pair]:
         """List all available market pairs and store to provide pairs info."""

src/cryptocom/exchange/pairs.py

@@ -207,7 +207,6 @@ KSM_USDT = Pair("KSM_USDT", price_precision=3, quantity_precision=3)
 LDO_BTC = Pair("LDO_BTC", price_precision=9, quantity_precision=2)
 LDO_USDT = Pair("LDO_USDT", price_precision=4, quantity_precision=2)
 LINK_BTC = Pair("LINK_BTC", price_precision=7, quantity_precision=2)
-LINK_CRO = Pair("LINK_CRO", price_precision=2, quantity_precision=2)
 LINK_USDC = Pair("LINK_USDC", price_precision=3, quantity_precision=3)
 LINK_USDT = Pair("LINK_USDT", price_precision=3, quantity_precision=2)
 LPT_USDC = Pair("LPT_USDC", price_precision=3, quantity_precision=3)

src/cryptocom/exchange/structs.py

@@ -49,6 +49,16 @@ class Pair:
         return self.name.__hash__()
 
 
+class DefaultPairDict(dict):
+    """Use default precision for old missing pairs."""
+
+    def __getitem__(self, name: str) -> Pair:
+        try:
+            return super().__getitem__(name)
+        except KeyError:
+            return Pair(name, 8, 8)
+
+
 @dataclass
 class MarketTicker:
     pair: Pair

tests/test_private.py

@@ -55,6 +55,13 @@ async def test_account_get_balance(account: cro.Account):
         assert coin in local_coins
 
 
+@pytest.mark.asyncio
+async def test_missing_old_pairs(account: cro.Account):
+    missing_pair = account.pairs["LINK_CRO"]
+    assert missing_pair.price_precision == 8
+    assert missing_pair.quantity_precision == 8
+
+
 @pytest.mark.asyncio
 async def test_deposit_withdrawal_history(
     account: cro.Account, exchange: cro.Exchange