はじめての Ethereum Part3 ether送金編(2019年2月16日執筆)
はじめてのブロックチェーン・アプリケーション Ethereumによるスマートコントラクト開発入門
- 作者: 渡辺篤,松本雄太,西村祥一,清水俊也
- 出版社/メーカー: 翔泳社
- 発売日: 2017/08/03
- メディア: Kindle版
- この商品を含むブログを見る
▼前回の記事はこちらです。
はじめての Ethereum Part2 プライベートネットワークへの接続編(2019年2月16日執筆) - kharukaのブログ~お金と技術とキャリア~
環境情報
OS
OS | バージョン | 備考 |
---|---|---|
macOS Mojava | 10.14.2 | ホストOS |
Oracle VM VirtualBox | 5.2.26 | |
Ubuntu | 16.04.4LTS | ゲストOS |
環境構築
▼環境構築の仕方はこちらなどをご参考に。
はじめてのCounterpartyノード構築Part1(2018年9月29日更新) - kharukaのブログ~お金と技術とキャリア~
ether送金
> personal.unlockAccount(eth.accounts[0]) Unlock account 0x38eb7eaed9dc2e29de9826a1284572ef1f07733b Passphrase: true
Passphraseが正しいとtrue
が返ってきます。
アカウント"0x39068ec02085a3a9a97931ac8501a890b427f6bf"から
アカウント"0x33f463c3cd0c8c1121fc6465fc73d4aa593d1b04"へ
10ether送金してみましょう。
> eth.sendTransaction({from: eth.accounts[0], to: eth.accounts[1], value: web3.toWei(10, "ether")}) INFO [02-14|19:08:11.807] Setting new local account address=0x39068ec02085A3A9a97931AC8501A890b427f6bf INFO [02-14|19:08:11.807] Submitted transaction fullhash=0xaa4a10c6dc5173b7065e04c9ba483031de5afbca28b422ae48c153ed6da7d86e recipient=0x33f463c3cd0C8C1121fC6465fc73d4Aa593D1b04 "0xaa4a10c6dc5173b7065e04c9ba483031de5afbca28b422ae48c153ed6da7d86e"
アカウント"0x33f463c3cd0c8c1121fc6465fc73d4aa593d1b04"へ10ether送金されたことを確認しましょう。
> web3.fromWei(eth.getBalance(eth.accounts[1]), "ether") 10
gethの使い方(ヘルプ)
geth-linux-amd64-1.8.22-7fa3509e/geth -h NAME: geth - the go-ethereum command line interface Copyright 2013-2018 The go-ethereum Authors USAGE: geth [options] command [command options] [arguments...] VERSION: 1.8.22-stable-7fa3509e COMMANDS: account Manage accounts attach Start an interactive JavaScript environment (connect to node) bug opens a window to report a bug on the geth repo console Start an interactive JavaScript environment copydb Create a local chain from a target chaindata folder dump Dump a specific block from storage dumpconfig Show configuration values export Export blockchain into file export-preimages Export the preimage database into an RLP stream import Import a blockchain file import-preimages Import the preimage database from an RLP stream init Bootstrap and initialize a new genesis block js Execute the specified JavaScript files license Display license information makecache Generate ethash verification cache (for testing) makedag Generate ethash mining DAG (for testing) monitor Monitor and visualize node metrics removedb Remove blockchain and state databases version Print version numbers wallet Manage Ethereum presale wallets help, h Shows a list of commands or help for one command ETHEREUM OPTIONS: --config value TOML configuration file --datadir "/home/ubuntu/.ethereum" Data directory for the databases and keystore --keystore Directory for the keystore (default = inside the datadir) --nousb Disables monitoring for and managing USB hardware wallets --networkid value Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten, 4=Rinkeby) (default: 1) --testnet Ropsten network: pre-configured proof-of-work test network --rinkeby Rinkeby network: pre-configured proof-of-authority test network --syncmode "fast" Blockchain sync mode ("fast", "full", or "light") --gcmode value Blockchain garbage collection mode ("full", "archive") (default: "full") --ethstats value Reporting URL of a ethstats service (nodename:secret@host:port) --identity value Custom node name --lightserv value Maximum percentage of time allowed for serving LES requests (0-90) (default: 0) --lightpeers value Maximum number of LES client peers (default: 100) --lightkdf Reduce key-derivation RAM & CPU usage at some expense of KDF strength --whitelist value Comma separated block number-to-hash mappings to enforce (<number>=<hash>) DEVELOPER CHAIN OPTIONS: --dev Ephemeral proof-of-authority network with a pre-funded developer account, mining enabled --dev.period value Block period to use in developer mode (0 = mine only if transaction pending) (default: 0) ETHASH OPTIONS: --ethash.cachedir Directory to store the ethash verification caches (default = inside the datadir) --ethash.cachesinmem value Number of recent ethash caches to keep in memory (16MB each) (default: 2) --ethash.cachesondisk value Number of recent ethash caches to keep on disk (16MB each) (default: 3) --ethash.dagdir "/home/ubuntu/.ethash" Directory to store the ethash mining DAGs (default = inside home folder) --ethash.dagsinmem value Number of recent ethash mining DAGs to keep in memory (1+GB each) (default: 1) --ethash.dagsondisk value Number of recent ethash mining DAGs to keep on disk (1+GB each) (default: 2) TRANSACTION POOL OPTIONS: --txpool.locals value Comma separated accounts to treat as locals (no flush, priority inclusion) --txpool.nolocals Disables price exemptions for locally submitted transactions --txpool.journal value Disk journal for local transaction to survive node restarts (default: "transactions.rlp") --txpool.rejournal value Time interval to regenerate the local transaction journal (default: 1h0m0s) --txpool.pricelimit value Minimum gas price limit to enforce for acceptance into the pool (default: 1) --txpool.pricebump value Price bump percentage to replace an already existing transaction (default: 10) --txpool.accountslots value Minimum number of executable transaction slots guaranteed per account (default: 16) --txpool.globalslots value Maximum number of executable transaction slots for all accounts (default: 4096) --txpool.accountqueue value Maximum number of non-executable transaction slots permitted per account (default: 64) --txpool.globalqueue value Maximum number of non-executable transaction slots for all accounts (default: 1024) --txpool.lifetime value Maximum amount of time non-executable transaction are queued (default: 3h0m0s) PERFORMANCE TUNING OPTIONS: --cache value Megabytes of memory allocated to internal caching (default: 1024) --cache.database value Percentage of cache memory allowance to use for database io (default: 50) --cache.trie value Percentage of cache memory allowance to use for trie caching (default: 25) --cache.gc value Percentage of cache memory allowance to use for trie pruning (default: 25) --trie-cache-gens value Number of trie node generations to keep in memory (default: 120) ACCOUNT OPTIONS: --unlock value Comma separated list of accounts to unlock --password value Password file to use for non-interactive password input API AND CONSOLE OPTIONS: --rpc Enable the HTTP-RPC server --rpcaddr value HTTP-RPC server listening interface (default: "localhost") --rpcport value HTTP-RPC server listening port (default: 8545) --rpcapi value API's offered over the HTTP-RPC interface --ws Enable the WS-RPC server --wsaddr value WS-RPC server listening interface (default: "localhost") --wsport value WS-RPC server listening port (default: 8546) --wsapi value API's offered over the WS-RPC interface --wsorigins value Origins from which to accept websockets requests --ipcdisable Disable the IPC-RPC server --ipcpath Filename for IPC socket/pipe within the datadir (explicit paths escape it) --rpccorsdomain value Comma separated list of domains from which to accept cross origin requests (browser enforced) --rpcvhosts value Comma separated list of virtual hostnames from which to accept requests (server enforced). Accepts '*' wildcard. (default: "localhost") --jspath loadScript JavaScript root path for loadScript (default: ".") --exec value Execute JavaScript statement --preload value Comma separated list of JavaScript files to preload into the console NETWORKING OPTIONS: --bootnodes value Comma separated enode URLs for P2P discovery bootstrap (set v4+v5 instead for light servers) --bootnodesv4 value Comma separated enode URLs for P2P v4 discovery bootstrap (light server, full nodes) --bootnodesv5 value Comma separated enode URLs for P2P v5 discovery bootstrap (light server, light nodes) --port value Network listening port (default: 30303) --maxpeers value Maximum number of network peers (network disabled if set to 0) (default: 25) --maxpendpeers value Maximum number of pending connection attempts (defaults used if set to 0) (default: 0) --nat value NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>) (default: "any") --nodiscover Disables the peer discovery mechanism (manual peer addition) --v5disc Enables the experimental RLPx V5 (Topic Discovery) mechanism --netrestrict value Restricts network communication to the given IP networks (CIDR masks) --nodekey value P2P node key file --nodekeyhex value P2P node key as hex (for testing) MINER OPTIONS: --mine Enable mining --miner.threads value Number of CPU threads to use for mining (default: 0) --miner.notify value Comma separated HTTP URL list to notify of new work packages --miner.gasprice "1000000000" Minimum gas price for mining a transaction --miner.gastarget value Target gas floor for mined blocks (default: 8000000) --miner.gaslimit value Target gas ceiling for mined blocks (default: 8000000) --miner.etherbase value Public address for block mining rewards (default = first account) (default: "0") --miner.extradata value Block extra data set by the miner (default = client version) --miner.recommit value Time interval to recreate the block being mined (default: 3s) --miner.noverify Disable remote sealing verification GAS PRICE ORACLE OPTIONS: --gpoblocks value Number of recent blocks to check for gas prices (default: 20) --gpopercentile value Suggested gas price is the given percentile of a set of recent transaction gas prices (default: 60) VIRTUAL MACHINE OPTIONS: --vmdebug Record information useful for VM and contract debugging --vm.evm value External EVM configuration (default = built-in interpreter) --vm.ewasm value External ewasm configuration (default = built-in interpreter) LOGGING AND DEBUGGING OPTIONS: --fakepow Disables proof-of-work verification --nocompaction Disables db compaction after import --verbosity value Logging verbosity: 0=silent, 1=error, 2=warn, 3=info, 4=debug, 5=detail (default: 3) --vmodule value Per-module verbosity: comma-separated list of <pattern>=<level> (e.g. eth/*=5,p2p=4) --backtrace value Request a stack trace at a specific logging statement (e.g. "block.go:271") --debug Prepends log messages with call-site location (file and line number) --pprof Enable the pprof HTTP server --pprofaddr value pprof HTTP server listening interface (default: "127.0.0.1") --pprofport value pprof HTTP server listening port (default: 6060) --memprofilerate value Turn on memory profiling with the given rate (default: 524288) --blockprofilerate value Turn on block profiling with the given rate (default: 0) --cpuprofile value Write CPU profile to the given file --trace value Write execution trace to the given file METRICS AND STATS OPTIONS: --metrics Enable metrics collection and reporting --metrics.influxdb Enable metrics export/push to an external InfluxDB database --metrics.influxdb.endpoint value InfluxDB API endpoint to report metrics to (default: "http://localhost:8086") --metrics.influxdb.database value InfluxDB database name to push reported metrics to (default: "geth") --metrics.influxdb.username value Username to authorize access to the database (default: "test") --metrics.influxdb.password value Password to authorize access to the database (default: "test") --metrics.influxdb.host.tag host InfluxDB host tag attached to all measurements (default: "localhost") WHISPER (EXPERIMENTAL) OPTIONS: --shh Enable Whisper --shh.maxmessagesize value Max message size accepted (default: 1048576) --shh.pow value Minimum POW accepted (default: 0.2) --shh.restrict-light Restrict connection between two whisper light clients DEPRECATED OPTIONS: --minerthreads value Number of CPU threads to use for mining (deprecated, use --miner.threads) (default: 0) --targetgaslimit value Target gas floor for mined blocks (deprecated, use --miner.gastarget) (default: 8000000) --gasprice "1000000000" Minimum gas price for mining a transaction (deprecated, use --miner.gasprice) --etherbase value Public address for block mining rewards (default = first account, deprecated, use --miner.etherbase) (default: "0") --extradata value Block extra data set by the miner (default = client version, deprecated, use --miner.extradata) MISC OPTIONS: --override.constantinople value Manually specify constantinople fork-block, overriding the bundled setting (default: 0) --help, -h show help COPYRIGHT: Copyright 2013-2018 The go-ethereum Authors
▼記事の続きは以下へ。
執筆中です。
参考
- 作者: アンドレアス・M・アントノプロス
- 出版社/メーカー: NTT出版
- 発売日: 2017/06/01
- メディア: Kindle版
- この商品を含むブログを見る