Fix positions history & candles optional fields definition (#44)

* Fix positions history & candles optional fields definition

* Fix positions history & candles optional fields definition

* Fix positions history & candles optional fields definition

Author: alexex10

Makefile

@@ -20,7 +20,8 @@ lint:
 		-i 71591 \
 		-i 71608 \
 		-i 73456 \
-		-i 74251
+		-i 74251 \
+		-i 76752
 	black --check --diff --target-version py310 --line-length 120 ./examples ./tests ./x10
 	flake8 ./examples ./tests ./x10
 	mypy

pyproject.toml

@@ -5,7 +5,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "x10-python-trading"
-version = "0.4.4"
+version = "0.4.5"
 description = "Python client for X10 API"
 authors = ["X10 <tech@ex10.org>"]
 repository = "https://github.com/x10xchange/python_sdk"

x10/perpetual/candles.py

@@ -1,5 +1,5 @@
 from decimal import Decimal
-from typing import Literal
+from typing import Literal, Optional
 
 from pydantic import AliasChoices, Field
 
@@ -14,5 +14,7 @@ class CandleModel(X10BaseModel):
     low: Decimal = Field(validation_alias=AliasChoices("low", "l"), serialization_alias="l")
     high: Decimal = Field(validation_alias=AliasChoices("high", "h"), serialization_alias="h")
     close: Decimal = Field(validation_alias=AliasChoices("close", "c"), serialization_alias="c")
-    volume: Decimal = Field(validation_alias=AliasChoices("volume", "v"), serialization_alias="v")
+    volume: Optional[Decimal] = Field(
+        validation_alias=AliasChoices("volume", "v"), serialization_alias="v", default=None
+    )
     timestamp: int = Field(validation_alias=AliasChoices("timestamp", "T"), serialization_alias="T")

x10/perpetual/positions.py

@@ -44,8 +44,8 @@ class PositionHistoryModel(X10BaseModel):
     leverage: Decimal
     size: Decimal
     open_price: Decimal
-    exit_type: Optional[ExitType]
-    exit_price: Optional[Decimal]
+    exit_type: Optional[ExitType] = None
+    exit_price: Optional[Decimal] = None
     realised_pnl: Decimal
     created_time: int
-    closed_time: Optional[int]
+    closed_time: Optional[int] = None

x10/perpetual/trading_client/order_management_module.py

@@ -10,10 +10,10 @@
 
 
 class _MassCancelRequestModel(X10BaseModel):
-    order_ids: Optional[List[int]]
-    external_order_ids: Optional[List[str]]
-    markets: Optional[List[str]]
-    cancel_all: Optional[bool]
+    order_ids: Optional[List[int]] = None
+    external_order_ids: Optional[List[str]] = None
+    markets: Optional[List[str]] = None
+    cancel_all: Optional[bool] = None
 
 
 class OrderManagementModule(BaseModule):