def transfer(
self,
crypto: Crypto,
destination_address: Address,
amount: int,
tx_fee: int,
tx_nonce: str,
chain_id: int = 1,
**kwargs,
) -> Optional[str]:
"""
Submit a transfer transaction to the ledger.
:param crypto: the crypto object associated to the payer.
:param destination_address: the destination address of the payee.
:param amount: the amount of wealth to be transferred.
:param tx_fee: the transaction fee.
:param tx_nonce: verifies the authenticity of the tx
:param chain_id: the Chain ID of the Ethereum transaction. Default is 1 (i.e. mainnet).
:return: tx digest if present, otherwise None
"""
tx_digest = None
nonce = self._try_get_transaction_count(crypto.address)
if nonce is None:
return tx_digest
transaction = {
"nonce": nonce,
"chainId": chain_id,
"to": destination_address,
"value": amount,
"gas": tx_fee,
"gasPrice": self._api.toWei(self._gas_price, GAS_ID),
"data": tx_nonce,
}
gas_estimate = self._try_get_gas_estimate(transaction)
if gas_estimate is None or tx_fee <= gas_estimate: # pragma: no cover
logger.warning(
"Need to increase tx_fee in the configs to cover the gas consumption of the transaction. Estimated gas consumption is: {}.".format(
gas_estimate
)
)
return tx_digest
signed_transaction = crypto.sign_transaction(transaction)
tx_digest = self.send_signed_transaction(tx_signed=signed_transaction,)
return tx_digest
def transfer(
self,
crypto: Crypto,
destination_address: Address,
amount: int,
tx_fee: int,
tx_nonce: str = "",
denom: str = "testfet",
account_number: int = 0,
sequence: int = 0,
gas: int = 80000,
memo: str = "",
sync_mode: str = "sync",
chain_id: str = "aea-testnet",
**kwargs,
) -> Optional[str]:
"""
Submit a transfer transaction to the ledger.
:param crypto: the crypto object associated to the payer.
:param destination_address: the destination address of the payee.
:param amount: the amount of wealth to be transferred.
:param tx_fee: the transaction fee.
:param tx_nonce: verifies the authenticity of the tx
:param chain_id: the Chain ID of the Ethereum transaction. Default is 1 (i.e. mainnet).
:return: tx digest if present, otherwise None
"""
result = self._try_get_account_number_and_sequence(crypto.address)
if result is not None:
account_number, sequence = result
transfer = {
"type": "cosmos-sdk/MsgSend",
"value": {
"from_address": crypto.address,
"to_address": destination_address,
"amount": [{
"denom": denom,
"amount": str(amount)
}],
},
}
tx = {
"account_number": str(account_number),
"sequence": str(sequence),
"chain_id": chain_id,
"fee": {
"gas": str(gas),
"amount": [{
"denom": denom,
"amount": str(tx_fee)
}],
},
"memo": memo,
"msgs": [transfer],
}
signature = crypto.sign_transaction(tx)
base64_pbk = base64.b64encode(bytes.fromhex(
crypto.public_key)).decode("utf-8")
pushable_tx = {
"tx": {
"msg": [transfer],
"fee": {
"gas": str(gas),
"amount": [{
"denom": denom,
"amount": str(tx_fee)
}],
},
"memo":
memo,
"signatures": [{
"signature": signature,
"pub_key": {
"type": "tendermint/PubKeySecp256k1",
"value": base64_pbk,
},
"account_number": str(account_number),
"sequence": str(sequence),
}],
},
"mode": sync_mode,
}
# TODO retrieve, gas dynamically
tx_digest = self.send_signed_transaction(tx_signed=pushable_tx)
return tx_digest