async def get_latest_update_block_number(self, network: str,
tokenId: int) -> List[int]:
contract = self.get_contract(network=network)
if not contract.updateMethodSignature:
return []
events = await contract.ethClient.get_log_entries(
address=contract.address,
startBlockNumber=contract.startBlockNumber,
topics=[
Web3.keccak(text=contract.updateMethodSignature).hex(),
int_to_hex(tokenId)
])
return next((event['blockNumber'] for event in reversed(events)), None)
async def get_transferred_token_ids_in_blocks(
self, network: str, startBlockNumber: int,
endBlockNumber: int) -> List[int]:
contract = self.get_contract(network=network)
events = await contract.ethClient.get_log_entries(
address=contract.address,
startBlockNumber=startBlockNumber,
endBlockNumber=endBlockNumber,
topics=[Web3.keccak(text=contract.transferMethodSignature).hex()])
return [
int.from_bytes(bytes(event['topics'][3]), 'big')
for event in events
]
def new_certificate(diag_id: str, certificate: str) -> HexBytes:
db = get_db()
# Calculate the hash
hash = Web3.keccak(text=certificate)
db.execute(
'REPLACE INTO certificate (diag_id, hash, cert) VALUES (?, ?, ?)',
(diag_id, hash.hex(), certificate)
)
# Commit database, just in case
db.commit()
# Return certificate hash to caller
return hash
