Lesson 4 : Deploying to Rinkeby on Infuria io

[agentbonquiqui]

I get this error when I try to deploy my contract to the Rinkeby network using Infuria.io address

This is my code.

from solcx import compile_standard, install_solc
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()

    install_solc("0.6.0")

    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)

bytecode = compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["evm"][
    "bytecode"
]["object"]

abi = compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["abi"]

w3 = Web3(
    Web3.HTTPProvider("https://rinkeby.infura.io/v3/f77d69aec23642458d9d3d6f22712a84")
)
chain_id = 4
my_address = "0x1f4eF41fDD77871f74C5Ed2A5830b9dBBe93a149"
private_key = os.getenv("PRIVATEKEY")


SimpleStorage = w3.eth.contract(abi=abi, bytecode=bytecode)


# get the latest transaction
nonce = w3.eth.getTransactionCount(my_address)

transaction = SimpleStorage.constructor().buildTransaction(
    {
        "gasPrice": w3.eth.gas_price,
        # "chainID": chain_id,
        "from": my_address,
        "nonce": nonce,
    }
)

signed_txn = w3.eth.account.sign_transaction(transaction, private_key=private_key)

print("Deploying Contract...")

tx_hash = w3.eth.send_raw_transaction(signed_txn.rawTransaction)
tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)

print("Deployed")


simple_storage = w3.eth.contract(address=tx_receipt.contractAddress, abi=abi)


# initial value of favorite number
print(simple_storage.functions.retrieve().call())
print("Updating Contract...")
store_transaction = simple_storage.functions.store(15).buildTransaction(
    {"gasPrice": w3.eth.gas_price, "from": my_address, "nonce": nonce + 1}
)

signed_store_txn = w3.eth.account.sign_transaction(
    store_transaction, private_key=private_key
)

send_store_tx = w3.eth.send_raw_transaction(signed_store_txn.rawTransaction)
tx_receipt = w3.eth.wait_for_transaction_receipt(send_store_tx)
print("Updated!")

print(simple_storage.functions.retrieve().call())

[cromewar]

Hello @agentbonquiqui
For me seems to be a problem with your python version not being able to use the correct libraries, Python 3.10 has a lot of problems with web3 libraries, could you please try using a virtualenv with python 3.8 or 3.9? on the meantime I'll try to do more research on this.

[agentbonquiqui]

Thanks man ill give it a try. How do you downgrade your python?

[cromewar]

Just install the version you want and then create a new virtualenv with that version, use this as reference.