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.ve3
ve
account
password
dd
tx_hash
import json
import web3
from web3 import Web3, HTTPProvider, TestRPCProvider
from solc import compile_source
from web3.contract import ConciseContract
# Solidity source code
contract_source_code = '''
pragma solidity ^0.4.0;
contract Greeter {
string public greeting;
function Greeter() {
greeting = 'Hello';
}
function setGreeting(string _greeting) public {
greeting = _greeting;
}
function greet() constant returns (string) {
return greeting;
}
}
'''
compiled_sol = compile_source(contract_source_code) # Compiled source code
contract_interface = compiled_sol['<stdin>:Greeter']
# web3.py instance
from sys import argv
w3 = Web3(HTTPProvider(argv[1]))
# Instantiate and deploy contract
contract = w3.eth.contract(contract_interface['abi'], bytecode=contract_interface['bin'])
# Get transaction hash from deployed contract
tx_hash = contract.deploy(transaction={'from': w3.eth.accounts[0], 'gas': 410000})
print(tx_hash)
'''
# Get tx receipt to get contract address
tx_receipt = w3.eth.getTransactionReceipt(tx_hash)
print('tx_receipt', tx_receipt)
contract_address = tx_receipt['contractAddress']
print('contract_address', contract_address)
'''
FROM ubuntu:16.04
RUN apt-get update -y && apt-get install -y apt-utils && apt-get upgrade -y
RUN apt-get install -y python3-pip python3-virtualenv virtualenv uuid-runtime python3-gevent python3-bottle software-properties-common
RUN add-apt-repository ppa:ethereum/ethereum
RUN apt-get update -y
RUN apt-get install -y emacs-nox tree solc libssl-dev geth screen git
RUN pip3 install -U py-solc populus pip
RUN git clone https://gist.github.com/val314159/c8807758cc98bfdfd18dfc060d030c11 /root/next-steps
WORKDIR /root/next-steps
RUN make .ve3
{
"config": {
"chainId": 130031,
"homesteadBlock": 0,
"eip155Block": 0,
"eip158Block": 0
},
"difficulty": "200",
"gasLimit": "2100000",
"alloc": {}
}
import json
import web3
from web3 import Web3, HTTPProvider, TestRPCProvider
from solc import compile_source
from web3.contract import ConciseContract
# Solidity source code
contract_source_code = '''
pragma solidity ^0.4.0;
contract Greeter {
string public greeting;
function Greeter() {
greeting = 'Hello';
}
function setGreeting(string _greeting) public {
greeting = _greeting;
}
function greet() constant returns (string) {
return greeting;
}
}
'''
compiled_sol = compile_source(contract_source_code) # Compiled source code
contract_interface = compiled_sol['<stdin>:Greeter']
# web3.py instance
from sys import argv
w3 = Web3(HTTPProvider(argv[1]))
tx_hash = argv[2]
print("tx_hash",tx_hash)
# Get tx receipt to get contract address
tx_receipt = w3.eth.getTransactionReceipt(tx_hash)
print('tx_receipt', tx_receipt)
contract_address = tx_receipt['contractAddress']
print('contract_address', contract_address)
# Contract instance in concise mode
contract_instance = w3.eth.contract(contract_interface['abi'], contract_address, ContractFactoryClass=ConciseContract)
print('contract_instance', contract_instance)
# Getters + Setters for web3.eth.contract object
print('Contract value: {}'.format(contract_instance.greet()))
contract_instance.setGreeting('Nihao', transact={'from': w3.eth.accounts[0]})
print('Setting value to: Nihao')
print('Contract value: {}'.format(contract_instance.greet()))
# To see this in action: look at http://b.ccl.io/2017/11/28/ethereum-next-steps
GETH=geth --datadir dd
all: run
docker-run: docker-build
/usr/local/bin/docker run -it -w `pwd` -v `pwd`:`pwd` xx
docker-build:
/usr/local/bin/docker build -t xx .
clean:
rm -fr dd account password .ve3 *~ .*~ tx_hash
dd: account
$(GETH) init g.js
attach:
$(GETH) attach dd/geth.ipc
account:
uuidgen > password
$(GETH) account new --password password >account
perl -i -npe 's/Address: {(.*?)}/$$1/g' account
run: dd
$(GETH) --mine --nodiscover --maxpeers 0 --networkid 130031 --rpc --rpccorsdomain "*" --rpcport 8545 --unlock 0 --password password --rpcapi web3,eth,personal,net,db,shh
get-bal:
curl http://localhost:8545 --data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0x'`cat account`'", "latest"],"id":1}'
.ve3:
virtualenv -p python3 .ve3
.ve3/bin/pip install web3 py-solc ipython populus
tx_hash: .ve3
.ve3/bin/python deploy.py http://localhost:8545 | tee tx_hash
interact: .ve3 tx_hash
.ve3/bin/python interact.py http://localhost:8545 `cat tx_hash`
unlock: .ve3
.ve3/bin/python unlockAccount.py http://localhost:8545
import json
import web3
from web3 import Web3, HTTPProvider, TestRPCProvider
from solc import compile_source
from web3.contract import ConciseContract
# Solidity source code
contract_source_code = '''
pragma solidity ^0.4.0;
contract Greeter {
string public greeting;
function Greeter() {
greeting = 'Hello';
}
function setGreeting(string _greeting) public {
greeting = _greeting;
}
function greet() constant returns (string) {
return greeting;
}
}
'''
compiled_sol = compile_source(contract_source_code) # Compiled source code
contract_interface = compiled_sol['<stdin>:Greeter']
# web3.py instance
from sys import argv
w3 = Web3(HTTPProvider(argv[1]))
a = open('account').read().strip()
p = open('password').read().strip()
print(a)
print(p)
print(w3.eth.coinbase)
print(w3.eth.accounts)
print(w3.personal.unlockAccount('0x'+a,p))
#w3.personal.unlockAccount(a,p)
#w3.eth.personal.unlockAccount(
#w3.personal.Personal.unlockAccount(
# open('account').read(),
# open('password').read())
# Instantiate and deploy contract
#contract = w3.eth.contract(contract_interface['abi'], bytecode=contract_interface['bin'])
## Get transaction hash from deployed contract
#tx_hash = contract.deploy(transaction={'from': w3.eth.accounts[0], 'gas': 410000})
#print(tx_hash)
'''
# Get tx receipt to get contract address
tx_receipt = w3.eth.getTransactionReceipt(tx_hash)
print('tx_receipt', tx_receipt)
contract_address = tx_receipt['contractAddress']
print('contract_address', contract_address)
'''
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