feat(strategy): add parameter validation to all strategies

1 files changed, 11 insertions, 0 deletions

diff --git a/services/strategy-engine/strategies/grid_strategy.py b/services/strategy-engine/strategies/grid_strategy.py
index 78e2703..b65264c 100644
--- a/services/strategy-engine/strategies/grid_strategy.py
+++ b/services/strategy-engine/strategies/grid_strategy.py
@@ -27,6 +27,17 @@ class GridStrategy(BaseStrategy):
         self._upper_price = float(params["upper_price"])
         self._grid_count = int(params.get("grid_count", 5))
         self._quantity = Decimal(str(params.get("quantity", "0.01")))
+
+        if self._lower_price >= self._upper_price:
+            raise ValueError(
+                f"Grid lower_price must be < upper_price, "
+                f"got lower={self._lower_price}, upper={self._upper_price}"
+            )
+        if self._grid_count < 2:
+            raise ValueError(f"Grid grid_count must be >= 2, got {self._grid_count}")
+        if self._quantity <= 0:
+            raise ValueError(f"Quantity must be positive, got {self._quantity}")
+
         self._grid_levels = list(
             np.linspace(self._lower_price, self._upper_price, self._grid_count + 1)
         )