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deploy.py
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deploy.py
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from solcx import compile_standard, install_solc
install_solc("0.6.0")
import json
from web3 import Web3
import os
from dotenv import load_dotenv
load_dotenv()
with open("./SimpleStorage.sol", "r") as file:
simple_storage_file = file.read()
# compile
compiled_sol = compile_standard(
{
"language": "Solidity",
"sources": {"SimpleStorage.sol": {"content": simple_storage_file}},
"settings": {
"outputSelection": {
"*": {"*": ["abi", "metadata", "evm.bytecode", "evm.sourceMap"]}
}
},
},
solc_version="0.6.0",
)
with open("compiled_code.json", "w") as file:
json.dump(compiled_sol, file)
# get bytecode
bytecode = compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["evm"][
"bytecode"
]["object"]
# get abi
abi = compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["abi"]
# connecting to rinkeby
w3 = Web3(
Web3.HTTPProvider("https://rinkeby.infura.io/v3/9d111961650c48a6b780eac5fd092175")
)
chain_id = 4
my_address = "0x196911CDB7bC78E6bD137BAC5566fC1d19C5F2E1"
# never actually hard code it with deployment!
private_key = os.getenv("PRIVATE_KEY")
# create the contract in python
SimpleStorage = w3.eth.contract(abi=abi, bytecode=bytecode)
# get the latest transcation
# nonces can only be used once
nonce = w3.eth.getTransactionCount(my_address)
# 1. Build a transaction
transaction = SimpleStorage.constructor().buildTransaction(
{
"gasPrice": w3.eth.gas_price,
"chainId": chain_id,
"from": my_address,
"nonce": nonce,
}
)
# 2. Sign a transaction
signed_txn = w3.eth.account.signTransaction(transaction, private_key)
# 3. Send a transaction
tx_hash = w3.eth.send_raw_transaction(signed_txn.rawTransaction)
tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
# working with the contract you always need:
# - Contract Address
# - Contract ABI
simple_storage = w3.eth.contract(address=tx_receipt.contractAddress, abi=abi)
print(simple_storage.functions.retrieve().call())
store_transaction = simple_storage.functions.store(15).buildTransaction(
{
"gasPrice": w3.eth.gas_price,
"chainId": chain_id,
"from": my_address,
"nonce": nonce + 1,
}
)
signed_store_txn = w3.eth.account.signTransaction(
store_transaction, private_key=private_key
)
send_store_txn = w3.eth.send_raw_transaction(signed_store_txn.rawTransaction)
tx_receipt = w3.eth.wait_for_transaction_receipt(send_store_txn)