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manage_sc.py
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manage_sc.py
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import logging
from argparse import ArgumentParser
from pathlib import Path
from erdpy import utils
from erdpy.accounts import Account, Address
from erdpy.contracts import CodeMetadata, SmartContract
from erdpy.proxy.core import ElrondProxy
logger = logging.getLogger("examples")
if __name__ == '__main__':
"""
cd elrond-sdk-erdpy
export PYTHONPATH=.
python3 ./examples/contracts.py \
--proxy=https://testnet-gateway.elrond.com \
--pem=~/elrondsdk/testwallets/latest/users/alice.pem
Sample contracts to be used (at deploy & upgrade):
./examples/bytecode/counter.wasm (functions: increment, decrement, get)
./examples/bytecode/answer.wasm (functions: getUltimateAnswer)
"""
parser = ArgumentParser()
parser.add_argument("--proxy", required=True)
parser.add_argument("--pem", required=True)
args = parser.parse_args()
logging.basicConfig(level=logging.DEBUG)
proxy = ElrondProxy(args.proxy)
network = proxy.get_network_config()
user = Account(pem_file=args.pem)
def do_deploy():
bytecode_path = Path(input("Path to WASM: ")).absolute()
bytecode = utils.read_binary_file(bytecode_path).hex()
code_metadata = CodeMetadata(upgradeable=True)
contract = SmartContract(bytecode=bytecode, metadata=code_metadata)
user.sync_nonce(proxy)
tx = contract.deploy(
owner=user,
arguments=[],
gas_price=network.min_gas_price,
gas_limit=5000000,
value=0,
chain=network.chain_id,
version=network.min_tx_version
)
tx_on_network = tx.send_wait_result(proxy, 5000)
logger.info(f"Deployment transaction: {tx_on_network.get_hash()}")
logger.info(f"Contract address: {contract.address.bech32()}",)
def do_query():
contract_address = Address(input("Contract address: "))
contract = SmartContract(address=contract_address)
function = input("Name of function: ")
answer = contract.query(proxy, function, [])
logger.info(f"Answer: {answer}")
def do_execute():
contract_address = Address(input("Contract address: "))
contract = SmartContract(address=contract_address)
function = input("Name of function: ")
user.sync_nonce(proxy)
tx = contract.execute(
caller=user,
function=function,
arguments=[],
gas_price=network.min_gas_price,
gas_limit=5000000,
value=0,
chain=network.chain_id,
version=network.min_tx_version
)
tx_hash = tx.send(proxy)
logger.info(f"Transaction: {tx_hash}")
def do_upgrade():
contract_address = Address(input("Contract address: "))
bytecode_path = Path(input("Path to WASM: ")).absolute()
bytecode = utils.read_binary_file(bytecode_path).hex()
code_metadata = CodeMetadata(upgradeable=True, payable=True, payable_by_sc=True)
contract = SmartContract(address=contract_address, bytecode=bytecode, metadata=code_metadata)
user.sync_nonce(proxy)
tx = contract.upgrade(
owner=user,
arguments=['0x4f524947494e2d666539343966'],
gas_price=network.min_gas_price,
gas_limit=180000000,
value=0,
chain=network.chain_id,
version=network.min_tx_version
)
tx_on_network = tx.send_wait_result(proxy, 5000)
logger.info(f"Upgrade transaction: {tx_on_network.get_hash()}")
while True:
print("Let's run a flow.")
print("1. Deploy")
print("2. Query")
print("3. Call")
print("4. Upgrade")
try:
choice = int(input("Choose:\n"))
except Exception:
break
flows = [
None,
do_deploy,
do_query,
do_execute,
do_upgrade
]
flow = flows[choice]
if flow:
flow()
else:
print("Bad choice")
break