Add endpoint to get a single trade by ID

backend/routes/exchange.py

@@ -565,6 +565,29 @@ async def get_my_trades(
     return [_to_exchange_response(ex, current_user.email) for ex in exchanges]
 
 
+@trades_router.get("/{exchange_id}", response_model=ExchangeResponse)
+async def get_my_trade(
+    exchange_id: int,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(require_permission(Permission.VIEW_OWN_EXCHANGES)),
+) -> ExchangeResponse:
+    """Get a specific trade by ID. User can only access their own trades."""
+    result = await db.execute(
+        select(Exchange).where(
+            and_(Exchange.id == exchange_id, Exchange.user_id == current_user.id)
+        )
+    )
+    exchange = result.scalar_one_or_none()
+
+    if not exchange:
+        raise HTTPException(
+            status_code=404,
+            detail="Trade not found or you don't have permission to view it.",
+        )
+
+    return _to_exchange_response(exchange, current_user.email)
+
+
 @trades_router.post("/{exchange_id}/cancel", response_model=ExchangeResponse)
 async def cancel_my_trade(
     exchange_id: int,