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gethコマンド

Posted at

事前準備

・Download geth from https://ethereum.github.io/go-ethereum/downloads/

mkdir ~/work/geth
cp /path/to/download/geth ~/work/geth/
echo "export PATH=~/work/geth:$PATH" >> ~/.bash_profile && source ~/.bash_profile
mkdir ~/work/geth/private_net
vim genesis.json
cd ~/work/geth/private_net
genesis.json
{
    "config":{
        "chainId": 33,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0
    },
    "nounce": "0x0000000000000033",
    "timesatamp": "0x0",
    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "gasLimit": "0x8000000",
    "difficulty": "0x100",
    "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "coinbase": "0x3333333333333333333333333333333333333333",
    "alloc": {}
}

プライベートネットワーク初期化

geth --datadir ./ -init ./genesis.json

プライベートネットワーク起動

geth --networkid "10" --nodiscover --datadir ~/work/geth/private_net --rpc --rpcaddr "localhost" --rpcport "8545" --rpccorsdomain "*" --rpcapi "eth,net,web3,personal" --targetgaslimit "20000000" console 2>> ~/work/geth/private_net/error.log

アカウント作成

> personal.newAccount("password")

アカウントの確認

> eth.accounts
> eth.accounts[0]

コインベースアカウントの確認

> eth.coinbase

コインベースアカウントの変更

> miner.setEtherbase(eth.accounts[1])

ブロック内容の確認

> eth.getBlock(0)

マイニングの開始

> miner.start(1)
*()内はマイニングするスレッド数

マイニングの停止

> miner.stop()

マイニング中かどうかの確認

> eth.mining

ブロック数の確認

> eth.blockNumber

コインベース残高の確認(単位wei)

> eth.getBalance(eth.accounts[0])

コインベース残高の確認(単位ether)

> web3.fromWei(eth.getBalance(eth.accounts[0]), "ether")

アカウントのロック解除

> personal.unlockAccount(eth.accounts[0])

etherの送金

> eth.sendTransaction({from: eth.accounts[0], to: eth3.accounts[2], value:web.toWei(5, "ether")})

トランザクションの確認

> eth.getTransaction("hash値")

トランザクションレシートの確認

> eth.getTransactionReceipt("hash値")

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