def deploy_erc20(w3: Web3,
name: str,
symbol: str,
owner: str,
amount: int,
decimals: int = 18,
deployer: str = None,
account: LocalAccount = None) -> Contract:
if account:
erc20_contract = get_example_erc20_contract(w3)
tx = erc20_contract.constructor(
name, symbol, decimals, owner, amount).buildTransaction({
'nonce':
w3.eth.get_transaction_count(account.address,
block_identifier='pending')
})
signed_tx = account.sign_transaction(tx)
tx_hash = w3.eth.send_raw_transaction(signed_tx.rawTransaction)
else:
deployer = deployer or w3.eth.accounts[0]
erc20_contract = get_example_erc20_contract(w3)
tx_hash = erc20_contract.constructor(
name, symbol, decimals, owner, amount).transact({'from': deployer})
tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)
erc20_address = tx_receipt.contractAddress
deployed_erc20 = get_example_erc20_contract(w3, erc20_address)
assert deployed_erc20.functions.balanceOf(owner).call() == amount
return deployed_erc20
def deploy_example_erc20(w3,
amount: int,
owner: str,
deployer: str = None,
account: LocalAccount = None):
if account:
erc20_contract = get_example_erc20_contract(w3)
tx = erc20_contract.constructor(amount, owner).buildTransaction()
if 'nonce' not in tx:
tx['nonce'] = w3.eth.getTransactionCount(
account.address, block_identifier='pending')
signed_tx = account.sign_transaction(tx)
tx_hash = w3.eth.sendRawTransaction(signed_tx.rawTransaction)
tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)
erc20_address = tx_receipt.contractAddress
deployed_erc20 = get_example_erc20_contract(w3, erc20_address)
assert deployed_erc20.functions.balanceOf(owner).call() == amount
return deployed_erc20
deployer = deployer or w3.eth.accounts[0]
erc20_contract = get_example_erc20_contract(w3)
tx_hash = erc20_contract.constructor(amount,
owner).transact({'from': deployer})
tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)
erc20_address = tx_receipt.contractAddress
deployed_erc20 = get_example_erc20_contract(w3, erc20_address)
assert deployed_erc20.functions.balanceOf(owner).call() == amount
return deployed_erc20
def send_tx(w3: Web3, tx, account: LocalAccount) -> bytes:
tx['from'] = account.address
if 'nonce' not in tx:
tx['nonce'] = w3.eth.get_transaction_count(account.address,
block_identifier='pending')
if 'gasPrice' not in tx:
tx['gasPrice'] = w3.eth.gas_price
if 'gas' not in tx:
tx['gas'] = w3.eth.estimateGas(tx)
else:
tx['gas'] *= 2
signed_tx = account.sign_transaction(tx)
tx_hash = w3.eth.send_raw_transaction(bytes(signed_tx.rawTransaction))
tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)
assert tx_receipt.status == 1, 'Error with tx %s - %s' % (tx_hash.hex(),
tx)
return tx_hash
def send_tx(w3: Web3, tx: TxParams, account: LocalAccount) -> bytes:
tx["from"] = account.address
if "nonce" not in tx:
tx["nonce"] = w3.eth.get_transaction_count(account.address,
block_identifier="pending")
if "gasPrice" not in tx and "maxFeePerGas" not in tx:
tx["gasPrice"] = w3.eth.gas_price
if "gas" not in tx:
tx["gas"] = w3.eth.estimate_gas(tx)
else:
tx["gas"] *= 2
signed_tx = account.sign_transaction(tx)
tx_hash = w3.eth.send_raw_transaction(bytes(signed_tx.rawTransaction))
tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
assert tx_receipt.status == 1, "Error with tx %s - %s" % (tx_hash.hex(),
tx)
return tx_hash