mrdka.py

import os
import sys
import time

import json
import web3

from web3.auto import w3

from web3 import Web3, Account
from web3.contract import ConciseContract

import eth_account
from eth_account.messages import defunct_hash_message

from web3.providers.rpc import HTTPProvider
from web3.providers.tester import EthereumTesterProvider

from solc import compile_source


BID = 0.777
BID = BID * 10 # since we cannot do decimals in solidity

WINNING_PRICE = 34

CONTRACT_CONSTRUCTOR = WINNING_PRICE
SOL_FILENAME = "dollar-auction.sol"
CONTRACT_SOURCE_ABSOLUTE_PATH = '/Users/jpavuk/coding/blockchain-dollar-game/contracts/'+SOL_FILENAME


def compile_source_file(file_path):

    with open(file_path, 'r') as f:
        source = f.read()
        #print('contract source code', source)

    compiled_source = compile_source(source)
    print('🍺 Contract was successfully compiled..', file_path)

    return compiled_source


def wait_for_receipt(w3, tx_hash, poll_interval):
    while True:
        tx_receipt = w3.eth.getTransactionReceipt(tx_hash)
        if tx_receipt:
            return tx_receipt
        print(tx_hash.hex(),'is still processing, trying again in',poll_interval,'seconds..')
        time.sleep(poll_interval)
    print('🍺 Obtained transaction receipt', tx_receipt)
    return tx_receipt


def deploy_contract(w3, contract_interface):

    contract_instance = w3.eth.contract(
        abi=contract_interface['abi'],
        bytecode=contract_interface['bin'],
        )

    print('constract instance is', contract_instance)

    gas_limit = 2000000
    gas_price = w3.toWei('40', 'gwei')
    #gas_price = w3.eth.gasPrice
    nonce = w3.eth.getTransactionCount(account=account.address,block_identifier=w3.eth.defaultBlock)
    print('returned nonce', nonce)

    transaction = {
        "from": w3.eth.defaultAccount,
        'gas':gas_limit,
        'gasPrice':gas_price,
        'chainId':3,
        'nonce':nonce,
    }

    print('Creating contract constructor..')
    contract_constructor = contract_instance.constructor(CONTRACT_CONSTRUCTOR)

    # building transaction
    print('Building transaction...')
    deploy_transaction = contract_constructor.buildTransaction( transaction )
    print('🍺 Contract transaction was built', deploy_transaction)

    print('signinng')
    signed_transaction = w3.eth.account.signTransaction(deploy_transaction, account.privateKey)
    print('signed_transaction', signed_transaction)

    print('sending raw tansaction')
    txn_hash = w3.eth.sendRawTransaction(signed_transaction.rawTransaction)  
    print('sent signed transaction', txn_hash.hex())

    print('wait for contract creation receipt..')
    tx_receipt = wait_for_receipt(w3, txn_hash, 5)
    contractAddress = tx_receipt.contractAddress
    print('🍺 Contract was succesfully deployed at', contractAddress)

    return tx_receipt, contract_instance



# load wallet
w3 = Web3(HTTPProvider('https://ropsten.infura.io/xSKHv68S1At0vV7kPPXL'))
wallet_json = {"address":"1c8a87926f5b727146d66100d144400ea274a47b","crypto":{"cipher":"aes-128-ctr","ciphertext":"df4470c3ca512bd985a5a8e99a4e46c626efeac5cad7f3e82ca6b33e07b9f8f9","cipherparams":{"iv":"318e34dff5e7baa10a206661b69055b6"},"kdf":"scrypt","kdfparams":{"dklen":32,"n":262144,"p":1,"r":8,"salt":"a52caa91cf25dc04652a0029c9f2f2a589ddcfbd2bc7558b272a1b48b24be206"},"mac":"38fdac919a132d548661da31f75fcc2eac758b571bd9a4e1e29c9dc4683aa5b2"},"id":"07277414-a6aa-4750-88e6-7c5e5deefb24","version":3}
wallet_secret = "mrdka pica"
account_key = Account.decrypt(wallet_json, wallet_secret)
account = Account.privateKeyToAccount(account_key)
w3.eth.defaultAccount = account.address

print('🙊 Account', w3.eth.defaultAccount)
print('🤩 Account balanace',w3.eth.getBalance(account=account.address))

# compile contract
compiled_sol = compile_source_file(CONTRACT_SOURCE_ABSOLUTE_PATH)
contract_id, contract_interface = compiled_sol.popitem()

# deploy contract
#contract_address, contract_instance = deploy_contract(w3, contract_interface)
#print("Deployed {0} to: {1}\n".format(contract_id, contract_address))

# test our contract
#CONTRACT_ADDRESS = contract_address
CONTRACT_ADDRESS = "0xd72D12a3bD0821D44E6539898EE2a8C81d80f12e"

CONTRACT_ABI = """
[
	{
		"constant": false,
		"inputs": [],
		"name": "place_bid",
		"outputs": [
			{
				"name": "",
				"type": "uint256"
			}
		],
		"payable": true,
		"stateMutability": "payable",
		"type": "function"
	},
	{
		"constant": true,
		"inputs": [],
		"name": "game_ends",
		"outputs": [
			{
				"name": "",
				"type": "bytes32"
			}
		],
		"payable": false,
		"stateMutability": "view",
		"type": "function"
	},
	{
		"constant": false,
		"inputs": [],
		"name": "list_bids",
		"outputs": [
			{
				"name": "",
				"type": "bool"
			}
		],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"constant": true,
		"inputs": [],
		"name": "game_starts",
		"outputs": [
			{
				"name": "",
				"type": "bytes32"
			}
		],
		"payable": false,
		"stateMutability": "view",
		"type": "function"
	},
	{
		"constant": false,
		"inputs": [],
		"name": "list_wins",
		"outputs": [
			{
				"name": "",
				"type": "bool"
			}
		],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"constant": false,
		"inputs": [],
		"name": "list_all",
		"outputs": [
			{
				"name": "",
				"type": "bool"
			}
		],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"constant": false,
		"inputs": [],
		"name": "__test_get_kaka",
		"outputs": [
			{
				"name": "",
				"type": "bytes32"
			}
		],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"constant": false,
		"inputs": [],
		"name": "list_refunds",
		"outputs": [
			{
				"name": "",
				"type": "bool"
			}
		],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"constant": true,
		"inputs": [],
		"name": "winning_price",
		"outputs": [
			{
				"name": "",
				"type": "uint256"
			}
		],
		"payable": false,
		"stateMutability": "view",
		"type": "function"
	},
	{
		"constant": true,
		"inputs": [],
		"name": "test",
		"outputs": [
			{
				"name": "",
				"type": "bytes32"
			}
		],
		"payable": false,
		"stateMutability": "view",
		"type": "function"
	},
	{
		"inputs": [
			{
				"name": "_winning_price",
				"type": "uint256"
			}
		],
		"payable": true,
		"stateMutability": "payable",
		"type": "constructor"
	}
]
"""

contract_instance = w3.eth.contract(
	address=CONTRACT_ADDRESS, 
	abi=CONTRACT_ABI,
)

print('contract_instance', contract_instance)

eth_account.local.LocalAccount = account.address

#transaction = contract_instance.functions.place_bid().buildTransaction()
#transaction['to'] = CONTRACT_ADDRESS
#transaction['from'] = account.address
#transaction['value'] = 111
#transaction['gas'] = 2000000
#transaction['gasPrice'] = w3.toWei('40', 'gwei')
#transaction['chainId'] = 3
#transaction['nonce'] = w3.eth.getTransactionCount(account=account.address,block_identifier=w3.eth.defaultBlock)
#print('transaction', transaction)

#signed_transaction = account.signTransaction(transaction)
#print('🦆 signed_transaction.rawTransaction', signed_transaction.rawTransaction)
#money_sent = w3.eth.sendRawTransaction(signed_transaction.rawTransaction)
#print('💰💰💰💰💰💰💰💰💰 money sent', w3.toHex(money_sent))

#bid_return = contract_instance.functions.place_bid().transact(signed_transaction.rawTransaction)
#print('💩💩💩💩💩💩 bid returned', bid_return)

print('🦆 contract_instance.functions.place_bid', dir(contract_instance.functions.place_bid()))

bid_return = contract_instance.functions.place_bid().call({'value':4444444444})
print('💩💩💩💩💩💩 bid returned but needs to be transaction function', bid_return)

bid_return = contract_instance.functions.place_bid().call()
print('💩💩💩💩💩💩 bid returned', bid_return)


# XXX this is what I really want to do as per transaction function 
# See the "transact" document section here http://web3py.readthedocs.io/en/latest/contracts.html
bid_return = contract_instance.functions.place_bid().transact({"value":4444444444,})
print('💩💩💩💩💩💩 bid returned', bid_return)

print('🤩 Account balanace',w3.eth.getBalance(account=account.address))