[Question]: How to Instantiate Bar type

[kushalj1997]

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Question

Hi, I'm trying to instantiate a Bar object as an argument in a function call.

self.insert_into_db(
                    bar=Bar(
                        symbol=symbol,
                        raw_data={
                            "symbol": symbol,
                            "timestamp": trading_minute.timestamp(),
                            "open": np.nan,
                            "high": np.nan,
                            "low": np.nan,
                            "close": np.nan,
                            "volume": np.nan,
                        },
                    )
                )

When I run this code, I get this error

Error generating data for TSLA: 8 validation errors for Bar
timestamp
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
open
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
high
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
low
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
close
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
volume
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
trade_count
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
vwap
  Field required [type=missing, input_value={'symbol': 'TSLA'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/missing
Traceback (most recent call last):
  File "/Users/kushaljaligama/dev/projects/deep-trader-0/deep-trader/alpaca_data_loader.py", line 290, in generate_single_stock_training_set
    self.generate_single_stock_single_day(symbol, trading_day)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
  File "/Users/kushaljaligama/dev/projects/deep-trader-0/deep-trader/alpaca_data_loader.py", line 270, in generate_single_stock_single_day
    bar=Bar(
        symbol=symbol,
    ...<8 lines>...
        },
    )
  File "/opt/homebrew/lib/python3.13/site-packages/alpaca/data/models/bars.py", line 51, in __init__
    super().__init__(symbol=symbol, **mapped_bar)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.13/site-packages/pydantic/main.py", line 214, in __init__
    validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self)
pydantic_core._pydantic_core.ValidationError: 8 validation errors for Bar
timestamp

Any ideas? Also do you guys have a discord?