def wait_for_transaction_receipt(self, txid):
LOG.info("Waiting for transaction receipt from the DID sidechain...")
try:
w3 = Web3(Web3.HTTPProvider(self.sidechain_rpc))
tx_receipt = w3.eth.wait_for_transaction_receipt(txid,
timeout=30,
poll_latency=0.1)
return {
"tx_receipt": json.loads(Web3.toJSON(tx_receipt)),
"err_type": None,
"err_message": None
}
except TimeExhausted as e:
LOG.info(
f"Timed out while sending transactions to the DID sidechain: {str(e)}"
)
return {
"tx_receipt": {},
"err_type": "TimeExhausted",
"err_message": str(e)
}
except Exception as e:
LOG.info(
f"Error while sending transactions to the DID sidechain: {str(e)}"
)
return {
"tx_receipt": {},
"err_type": "Exception",
"err_message": str(e)
}
def get_block_count(self) -> int:
LOG.info("Get block count...")
try:
w3 = Web3(Web3.HTTPProvider(self.sidechain_rpc))
currentBlock = w3.eth.get_block_number()
LOG.info("Actual block number: " + str(currentBlock))
return currentBlock
except Exception as e:
LOG.info(f"Error while getting block count: {str(e)}")
return None
def get_raw_transaction(self, txid):
LOG.info(f"Retrieving transaction {txid} from the DID sidechain...")
try:
w3 = Web3(Web3.HTTPProvider(self.sidechain_rpc))
tx = w3.eth.get_transaction_receipt(txid)
return json.loads(Web3.toJSON(tx))
except Exception as e:
LOG.info(
f"Error while getting raw transaction for a txid: {str(e)}")
return None
def send_raw_transaction(self, signed_transaction):
LOG.info("Sending transaction to the DID sidechain...")
try:
w3 = Web3(Web3.HTTPProvider(self.sidechain_rpc))
tx = w3.eth.send_raw_transaction(signed_transaction.rawTransaction)
return {"tx_id": tx.hex(), "error": None}
except Exception as e:
LOG.info(
f"Error while sending transactions to the DID sidechain: {str(e)}"
)
return {"tx_id": None, "error": str(e)}
def get_balance(self, address):
LOG.info(
f"Retrieving current balance on DID sidechain for address {address}"
)
balance = 0
try:
w3 = Web3(Web3.HTTPProvider(self.sidechain_rpc))
balance = float(w3.eth.get_balance(
Web3.toChecksumAddress(address)))
balance = balance / 1000000000000000000.0
except Exception as e:
LOG.info(f"Error while retrieving balance for an address: {e}")
return balance
