kopia lustrzana https://github.com/bugout-dev/moonstream
55 wiersze
1.9 KiB
Python
55 wiersze
1.9 KiB
Python
"""
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Moonstream's /txinfo endpoints.
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These endpoints enrich raw blockchain transactions (as well as pending transactions, hypothetical
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transactions, etc.) with side information and return objects that are better suited for displaying to
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end users.
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"""
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import logging
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from typing import Optional
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from fastapi import APIRouter, Depends
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from sqlalchemy.orm import Session
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from moonstreamdb.db import yield_db_session
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from .. import actions, data
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from ..abi_decoder import decode_abi
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logger = logging.getLogger(__name__)
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router = APIRouter(prefix="/txinfo")
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# TODO(zomglings): Factor out the enrichment logic into a separate action, because it may be useful
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# independently from serving API calls (e.g. data processing).
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# TODO(kompotkot): Re-organize function to be able handle each steps with exceptions.
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@router.post(
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"/ethereum_blockchain",
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tags=["txinfo"],
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response_model=data.TxinfoEthereumBlockchainResponse,
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)
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async def txinfo_ethereum_blockchain_handler(
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txinfo_request: data.TxinfoEthereumBlockchainRequest,
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db_session: Session = Depends(yield_db_session),
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) -> data.TxinfoEthereumBlockchainResponse:
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response = data.TxinfoEthereumBlockchainResponse(tx=txinfo_request.tx)
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if txinfo_request.tx.input is not None:
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try:
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response.abi = decode_abi(txinfo_request.tx.input, db_session)
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except Exception as err:
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logger.error(r"Could not decode ABI:")
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logger.error(err)
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response.errors.append("Could not decode ABI from the given input")
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source_info: Optional[data.EthereumSmartContractSourceInfo] = None
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if txinfo_request.tx.to_address is not None:
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source_info = actions.get_contract_source_info(
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db_session, txinfo_request.tx.to_address
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)
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if source_info is not None:
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response.smart_contract_info = source_info
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response.smart_contract_address = txinfo_request.tx.to_address
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response.is_smart_contract_call = True
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return response
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