bug: missing parameters in get_block() method

[shawakash]

What happened

While fetching the block details from a block number using node_client.get_block() function, an error was raised saying some parameters like l1_data_gas_price and l1_da_mode is missed.

My node client is working fine as i am able to use another methods and i tried changing the sdk version from 0.24.3 to 0.24.2, still issue persisted

Stack trace

ERROR - Error getting date from block: {'l1_data_gas_price': ['Missing data for required field.'], 'l1_da_mode': ['Missing data for required field.']}

Steps to reproduce

1. just try to fetch the get_block() function in FullNodeClient https://starknetpy.readthedocs.io/en/latest/api/full_node_client.html#starknet_py.net.full_node_client.FullNodeClient.get_block

SDK Version

0.24.3

Python version

Python 3.11.0

What operating system are you using?

Mac

Is there an existing issue for this?

• I have searched the existing issues and verified no issue exits for this problem.

[shawakash]

@franciszekjob any clue here ?

[franciszekjob]

Hi @shawakash 👋 ,
get_block returns an object which is defined as PENDING_BLOCK_HEADER in spec
It should have several fields, including l1_data_gas_price and l1_da_mode. For some reason, the response which you receive while calling node_client.get_block(...), doesn't include these fields, hence the problem during deserialization.

Which node are you using?

[shawakash]

hey @franciszekjob ,
i am using the mainnet node from blastapi.io

[shawakash]

only the get_date_from_block() func ?

[shawakash]

async def get_date_from_block(self, block: int) -> Optional[datetime]:
        """Get date from block number"""
        try:
            block_info = await self.node_client.get_block(block_number=block)
            self._logger.info(f"Block info: {block_info}")
            return datetime.fromtimestamp(block_info.timestamp)
        except Exception as e:
            self._logger.error(f"Error getting date from block: {str(e)}")
            return None

here you go @franciszekjob

[franciszekjob]

Ok, I managed to reproduce your error. It's because you're using endpoint for RPC 0.8.0. Fore some reason, block header response lacks l1_data_gas_price and l1_da_mode 🤔 . Try with https://starknet-mainnet.public.blastapi.io/rpc/v0_7 which uses RPC 0.7.0. Should work, let me know 😄

[shawakash]

thanks a lot bud, it worked
@franciszekjob saved me a lot of time to debug this

[franciszekjob]

@shawakash happy I could help you 🙌