if not utils.is_contract(c.get_account(FACTORY_ADDRESS)):
raise Exception(f"{FACTORY_ADDRESS} is not a smart contract")
if not utils.is_contract(c.get_account(token_1_address)):
raise Exception(f"{token_1_address} is not a smart contract")
if not utils.is_contract(c.get_account(token_2_address)):
raise Exception(f"{token_2_address} is not a smart contract")
# Call on factory to create a pool of token 1 and token 2
response = c.transact(w, factory_contract, 'createPair',
[token_1_address, token_2_address], FACTORY_ADDRESS)
tx_id = response['id']
# Wait for Receipt
receipt = c.wait_for_tx_receipt(tx_id, 30)
if not receipt:
raise Exception(f"receipt not found! by tx id: {tx_id}")
# Print deployed address
if utils.is_reverted(receipt):
print(c.replay_tx(tx_id))
raise Exception(f"{tx_id} is reverted!")
print('createPair() call success, tx_id:', tx_id)
# Read newly created pool contract address
response = c.call(w.getAddress(), factory_contract, 'getPair',
[token_1_address, token_2_address], FACTORY_ADDRESS)
print(response['decoded']['0'])
if not utils.is_contract(c.get_account(token_1_address)):
raise Exception(f"{token_1_address} is not a smart contract")
if not utils.is_contract(c.get_account(token_2_address)):
raise Exception(f"{token_2_address} is not a smart contract")
# Call to approve() vtho to be used by router02
response = c.transact(w, erc20_contract, 'approve',
[ROUTER02_ADDRESS, token_2_amount], token_2_address)
tx_id = response['id']
receipt = c.wait_for_tx_receipt(tx_id, 30)
if not receipt:
raise Exception(f"receipt not found! by tx id: {tx_id}")
assert utils.is_reverted(receipt) == False
print('approve tx_id', tx_id)
# Call to deposit vet and vtho
response = c.transact(w, router02_contract, 'addLiquidityETH', [
token_2_address, token_2_amount,
round(token_2_amount * 0.9),
round(token_1_amount * 0.9),
w.getAddress(),
int(time.time()) + 1000
], ROUTER02_ADDRESS, token_1_amount)
tx_id = response['id']
receipt = c.wait_for_tx_receipt(tx_id, 30)
if not receipt:
raise Exception(f"receipt not found! by tx id: {tx_id}")