Merge pull request #146 from peterwilli/fix/backtest_error_improvement

backend/services/backend_api_client.py

@@ -196,6 +196,8 @@ def run_backtesting(self, start_time: int, end_time: int, backtesting_resolution
  }
  response = requests.post(url, json=payload)
  backtesting_results = response.json()
+ if "error" in backtesting_results:
+ raise Exception(backtesting_results["error"])
  if "processed_data" not in backtesting_results:
  data = None
  else:

frontend/components/backtesting.py

@@ -22,13 +22,18 @@ def backtesting_section(inputs, backend_api_client):
  if run_backtesting:
  start_datetime = datetime.combine(start_date, datetime.min.time())
  end_datetime = datetime.combine(end_date, datetime.max.time())
- backtesting_results = backend_api_client.run_backtesting(
- start_time=int(start_datetime.timestamp()) * 1000,
- end_time=int(end_datetime.timestamp()) * 1000,
- backtesting_resolution=backtesting_resolution,
- trade_cost=trade_cost / 100,
- config=inputs,
- )
+ try:
+ backtesting_results = backend_api_client.run_backtesting(
+ start_time=int(start_datetime.timestamp()) * 1000,
+ end_time=int(end_datetime.timestamp()) * 1000,
+ backtesting_resolution=backtesting_resolution,
+ trade_cost=trade_cost / 100,
+ config=inputs,
+ )
+ except Exception as e:
+ st.error(e)
+ return None
+
  if len(backtesting_results["processed_data"]) == 0:
  st.error("No trades were executed during the backtesting period.")
  return None