Spaces:
Paused
Paused
File size: 2,001 Bytes
efeddde | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | import json
import os
from pathlib import Path
from dotenv import load_dotenv
from solcx import compile_standard, install_solc
from web3 import Web3
load_dotenv()
RPC = os.getenv("SEPOLIA_RPC_URL")
PRIVATE_KEY = os.getenv("PRIVATE_KEY")
if not RPC or not PRIVATE_KEY:
raise RuntimeError("Set SEPOLIA_RPC_URL and PRIVATE_KEY in .env")
contract_path = Path("contracts/ProvenanceRegistry.sol")
source = contract_path.read_text(encoding="utf-8")
install_solc("0.8.20")
compiled = compile_standard(
{
"language": "Solidity",
"sources": {
"ProvenanceRegistry.sol": {"content": source}
},
"settings": {
"outputSelection": {
"*": {
"*": ["abi", "evm.bytecode"]
}
}
},
},
solc_version="0.8.20",
)
artifact = compiled["contracts"]["ProvenanceRegistry.sol"]["ProvenanceRegistry"]
abi = artifact["abi"]
bytecode = artifact["evm"]["bytecode"]["object"]
w3 = Web3(Web3.HTTPProvider(RPC))
if not w3.is_connected():
raise RuntimeError("RPC connection failed.")
account = w3.eth.account.from_key(PRIVATE_KEY)
contract = w3.eth.contract(abi=abi, bytecode=bytecode)
nonce = w3.eth.get_transaction_count(account.address)
tx = contract.constructor().build_transaction({
"from": account.address,
"nonce": nonce,
"chainId": w3.eth.chain_id,
"gas": 1000000,
"maxFeePerGas": w3.to_wei("30", "gwei"),
"maxPriorityFeePerGas": w3.to_wei("1", "gwei"),
})
signed = account.sign_transaction(tx)
tx_hash = w3.eth.send_raw_transaction(signed.raw_transaction)
receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
address = receipt.contractAddress
print("Contract deployed:", address)
print("Transaction:", tx_hash.hex())
abi_path = Path("app/blockchain/abi.json")
abi_path.parent.mkdir(parents=True, exist_ok=True)
abi_path.write_text(json.dumps(abi, indent=2), encoding="utf-8")
print("\nAdd this to .env:")
print(f"CONTRACT_ADDRESS={address}")
|