Ethereum動かしてみた

Ethereum
2019/08/10

Ethereum survey

setup

% brew install ethereum

Run daemon

setup private network.

% geth --datadir . init myGenesis.json

Run CLI

% geth --datadir "." attach ipc:geth.ipc

> eth.accounts
[]
> personal.newAccount("hogehoge01")
"0x6d3341d8a5314a084a097091c4a0d6d792cbca56"
> eth.accounts
["0x6d3341d8a5314a084a097091c4a0d6d792cbca56"]
> personal.newAccount("hogehoge02")
"0xb3bae63ea54f3dfaf26ea08bc3862e1eef55c01c"
> eth.accounts
["0x6d3341d8a5314a084a097091c4a0d6d792cbca56", "0xb3bae63ea54f3dfaf26ea08bc3862e1eef55c01c"]
>
> eth.coinbase
"0x6d3341d8a5314a084a097091c4a0d6d792cbca56"
> miner.setEtherbase(eth.accounts[1])
true
> eth.coinbase
"0xb3bae63ea54f3dfaf26ea08bc3862e1eef55c01c"
> miner.start()
null
> miner.stop()
null
> eth.blockNumber
0
> miner.start()
null
> eth.mining
true
> eth.hashrate
0
> eth.hashrate
11774
> eth.hashrate
11774
> eth.hashrate
22131
> miner.stop()
null
> eth.blockNumber
24
> eth.getBlock(1)
{
  difficulty: 131072,
  extraData: "0xd983010901846765746888676f312e31322e378664617277696e",
  gasLimit: 134086657,
  gasUsed: 0,
  hash: "0x4529f0f308d01294b5e65a118d3ad92541e005798a6473c1746e89b4317c2d20",
  logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  miner: "0xb3bae63ea54f3dfaf26ea08bc3862e1eef55c01c",
  mixHash: "0xb3e9d16d11d790086db82c3c9590ff9bee6308784de11efd09f5e9bf4157f788",
  nonce: "0x29bc0504ee137827",
  number: 1,
  parentHash: "0x7b2e8be699df0d329cc74a99271ff7720e2875cd2c4dd0b419ec60d1fe7e0432",
  receiptsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
  sha3Uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
  size: 538,
  stateRoot: "0x09882d0e65b4a5af352b1823add77b36086b955c31fcfd9de8b30e160375deb8",
  timestamp: 1565088821,
  totalDifficulty: 147456,
  transactions: [],
  transactionsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
  uncles: []
}
> eth.getBlock(2)
{
  difficulty: 131072,
  extraData: "0xd983010901846765746888676f312e31322e378664617277696e",
  gasLimit: 133955714,
  gasUsed: 0,
  hash: "0x926777bc57d6bccd4c35cf48e902f7c82c6eddab994823289a0f0d6489d3cf27",
  logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  miner: "0xb3bae63ea54f3dfaf26ea08bc3862e1eef55c01c",
  mixHash: "0x83a9aaee23fe2ca84c98a955ba5a1d83751e3553cb418ed72476d0fced969f1e",
  nonce: "0x316150b329a6230f",
  number: 2,
  parentHash: "0x4529f0f308d01294b5e65a118d3ad92541e005798a6473c1746e89b4317c2d20",
  receiptsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
  sha3Uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
  size: 538,
  stateRoot: "0x879c5e58e60028f7cd9a019efb8622a668f28386d9098cf7eb194e67b1e174a5",
  timestamp: 1565088849,
  totalDifficulty: 278528,
  transactions: [],
  transactionsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
  uncles: []
}

check balance

> eth.coinbase == eth.accounts[1]
true
> eth.getBalance(eth.accounts[1])
815000000000000000000
> web3.fromWei(eth.getBalance(eth.accounts[1]),"ether")
1140

transfer amount

> personal.unlockAccount(eth.accounts[0])
Unlock account 0x6d3341d8a5314a084a097091c4a0d6d792cbca56
Passphrase:
true
> eth.getBalance(eth.accounts[1])
2.86e+21
> personal.unlockAccount(eth.accounts[1])
Unlock account 0xb3bae63ea54f3dfaf26ea08bc3862e1eef55c01c
Passphrase:
true
> eth.sendTransaction({from: eth.accounts[1], to: eth.accounts[0], value: web3.toWei(5, "ether")})
"0x9e25f0f6d2e85b7a8045730c65af2b93b3a0ae3fbd3c14fc7db0abda4a0d44fb"
> eth.getBalance(eth.accounts[0])
0
> eth.getBalance(eth.accounts[1])
6.345e+21

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