Geth始め方めも

インストール

$ brew tap ethereum/ethereum
$ brew install ethereum

Genesisfile作成

myGenesis.json

{
  "config": {
    "chainId": 15
  },
  "nonce": "0x0000000000000042",
  "timestamp": "0x0",
  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "extraData": "",
  "gasLimit": "0x8000000",
  "difficulty": "0x4000",
  "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "coinbase": "0x3333333333333333333333333333333333333333",
  "alloc": {}
}

ブロックチェーン初期化

$ geth --datadir /home/ubuntu/eth_private_net init /home/ubuntu/eth_private_net/myGenesis.json

Geth起動

$ geth --networkid "15" --nodiscover --datadir "/home/ubuntu/eth_private_net" console 2>> /home/ubuntu/eth_private_net/geth_err.log

Contractの生成

$ solc --abi --bin SingleNumRegister.sol　//ソースコードをコンパイル

======= SingleNumRegister.sol:SingleNumRegister =======
Binary:
6060604052341561000f57600080fd5b60d38061001d6000396000f3006060604052600436106049576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806360fe47b114604e5780636d4ce63c14606e575b600080fd5b3415605857600080fd5b606c60048080359060200190919050506094565b005b3415607857600080fd5b607e609e565b6040518082815260200191505060405180910390f35b8060008190555050565b600080549050905600a165627a7a72305820bdd0549ef41e9c70cc944a6c19e54da47ecda63a1c5edfc7024125b5c49b4acb0029
Contract JSON ABI
[{"constant":false,"inputs":[{"name":"x","type":"uint256"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"retVal","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}]

> var bin = "0x6060604052341561000f57600080fd5b60d38061001d6000396000f3006060604052600436106049576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806360fe47b114604e5780636d4ce63c14606e575b600080fd5b3415605857600080fd5b606c60048080359060200190919050506094565b005b3415607857600080fd5b607e609e565b6040518082815260200191505060405180910390f35b8060008190555050565b600080549050905600a165627a7a72305820bdd0549ef41e9c70cc944a6c19e54da47ecda63a1c5edfc7024125b5c49b4acb0029"
> var abi = [{"constant":false,"inputs":[{"name":"x","type":"uint256"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"retVal","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}]
> var contract = eth.contract(abi)
> var myContract = contract.new({ from: eth.accounts[0], data: bin})

Remix-ide

IDE