Ethereum - Ganache(가나쉬)

목차

1. Ganache(가나쉬)

 

1. Ganache(가나쉬)

 

 

가나쉬는 이더리움 블록체인 네트워크를 로컬 환경에서 시뮬레이션하고 개발 및 테스트 하는데 사용되는 개발 도구이다. 

 

간단하게 요약해보자면 가나쉬는 간편하게 사용할 수 있는 이더리움 네트워크(서버)라고 생각하면된다.

 

실제 이더리움 서버를 이용하기에는 비용이 들기도 하고 시간도 오래 걸린다.

 

이는 개발하는데에 있어서 상당히 비효율적이다. 이를 해소하기 위해 가나쉬라는 것을 사용한다.

 

가나쉬는 GUI 환경에서도 사용할 수 있고, CLI 환경에서 사용할 수도 있다.

 

 

아래의 사이트에서 설치 후 GUI 환경을 사용할 수 있다.

 

https://trufflesuite.com/ganache/

Ganache - Truffle Suite

 

 

아래는 CLI 환경에서 사용할 수 있도록 설치하는 명령어 이다(npm 패키지 기준)

npx ganache-cli
npm install ganache-cli
npm install -g ganache-cli // 글로벌 환경 설치

 

아래는 ganache --help를 입력하면 나오는 옵션들이니 필요에 따라서 옵션 설정을 해주도록하자.

ex) 윈도우에서 가상머신을 실행하는 경우 host를 바꿔줄 때 등등

Network:
  -p, --port              Port number to listen on        [number] [default: 8545]
  -h, --host, --hostname  Hostname to listen on    [string] [default: "127.0.0.1"]
  --keepAliveTimeout      The number of milliseconds of inactivity a server needs
                          to wait for additional incoming data, after it has
                          finished writing the last response, before a socket will
                          be destroyed.                   [number] [default: 5000]

Accounts:
  -a, --accounts                   Number of accounts to generate at startup
                                                            [number] [default: 10]
  -e, --defaultBalanceEther        Amount of ether to assign each test account
                                                           [number] [default: 100]
  --account                        Account data in the form
                                   '<private_key>,<initial_balance>', can be
                                   specified multiple times. Note that private
                                   keys are 64 characters long and must be entered
                                   as an 0x-prefixed hex string. Balance can
                                   either be input as an integer, or as a
                                   0x-prefixed hex string with either form
                                   specifying the initial balance in wei.  [array]
  --account_keys_path, --acctKeys  saves generated accounts and private keys as
                                   JSON object in specified file
                                                          [string] [default: null]
  -n, --secure                     Lock available accounts by default (good for
                                   third party transaction signing)
                                                        [boolean] [default: false]
  -u, --unlock                     Comma-separated list of accounts or indices to
                                   unlock                                  [array]
  --hdPath, --hd_path              The hierarchical deterministic path to use when
                                   generating accounts. Default: "m/44'/60'/0'/0/"
                                                                          [string]

Chain:
  -k, --hardfork                Allows users to specify which hardfork should be
                                used. Supported hardforks are `byzantium`,
                                `constantinople`, `petersburg`, `istanbul` and
                                `muirGlacier` (default).
                                                 [string] [default: "muirGlacier"]
  -f, --fork                    Fork from another currently running Ethereum
                                client at a given block. Input should be the HTTP
                                location and port of the other client, e.g.
                                'http://localhost:8545' or optionally provide a
                                block number 'http://localhost:8545@1599200'
                                                         [string] [default: false]
  --forkCacheSize               The maximum size, in bytes, of the in-memory cache
                                for queries on a chain fork. Defaults to
                                `1_073_741_824` bytes (1 gigabyte). You can set
                                this to `0` to disable caching (not recommended),
                                or to `-1` for unlimited (will be limited by your
                                node process).      [number] [default: 1073741824]
  --db                          Directory of chain database; creates one if it
                                doesn't exist             [string] [default: null]
  -s, --seed                    Arbitrary data to generate the HD wallet mnemonic
                                to be used
                          [string] [default: Random value, unless -d is specified]
  -d, --deterministic           Generate deterministic addresses based on a
                                pre-defined mnemonic.                    [boolean]
  -m, --mnemonic                bip39 mnemonic phrase for generating a PRNG seed,
                                which is in turn used for hierarchical
                                deterministic (HD) account generation     [string]
  --noVMErrorsOnRPCResponse     Do not transmit transaction failures as RPC
                                errors. Enable this flag for error reporting
                                behaviour which is compatible with other clients
                                such as geth and Parity.[boolean] [default: false]
  -b, --blockTime               Block time in seconds for automatic mining. Will
                                instantly mine a new block for every transaction
                                if option omitted. Avoid using unless your test
                                cases require a specific mining interval. [number]
  -i, --networkId               The Network ID ganache-cli will use to identify
                                itself.
           [number] [default: System time at process start or Network ID of forked
                                                        blockchain if configured.]
  --chainId                     The Chain ID ganache-cli will use for
                                `eth_chainId` RPC and the `CHAINID` opcode.
        [number] [default: For legacy reasons, the default is currently `1337` for
     `eth_chainId` RPC and `1` for the `CHAINID` opcode. This will be fixed in the
                              next major version of ganache-cli and ganache-core!]
  -g, --gasPrice                The price of gas in wei
                                                   [number] [default: 20000000000]
  -l, --gasLimit                The block gas limit in wei
                                                       [number] [default: 6721975]
  --callGasLimit                Sets the transaction gas limit for `eth_call` and
                                `eth_estimateGas` calls. Must be specified as a
                                hex string. Defaults to "0x1fffffffffffff"
                                (Number.MAX_SAFE_INTEGER)
                                              [number] [default: 9007199254740991]
  --allowUnlimitedContractSize  Allows unlimited contract sizes while debugging.
                                By enabling this flag, the check within the EVM
                                for contract size limit of 24KB (see EIP-170) is
                                bypassed. Enabling this flag *will* cause
                                ganache-cli to behave differently than production
                                environments.           [boolean] [default: false]
  -t, --time                    Date (ISO 8601) that the first block should start.
                                Use this feature, along with the evm_increaseTime
                                method to test time-dependent code.       [string]

Other:
  --debug        Output VM opcodes for debugging        [boolean] [default: false]
  -v, --verbose  Log all requests and responses to stdout
                                                        [boolean] [default: false]
  --mem          Only show memory output, not tx history[boolean] [default: false]
  -q, --quiet    Run ganache quietly (no logs)          [boolean] [default: false]

Options:
  --help, -?  Show help                                                  [boolean]
  --version   Show version number                                        [boolean]