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A library and cli to create a local blockchain for fast Ethereum development.
Features • Getting Started • Documentation • Community • Contributing • Related
Ganache is an Ethereum simulator that makes developing Ethereum applications faster, easier, and safer. It includes all popular RPC functions and features (like events) and can be run deterministically to make development a breeze.
Ganache can be used from the command line or programmatically via Node.js.
You must first install Node.js >= v10.7.0 and npm >= 6.4.1.
To install ganache globally, run:
$ npm install ganache --global
Once installed globally, you can start ganache right from your command line:
$ ganache
Ganache CLI v6.12.1 (ganache-core: 2.13.1)
Available Accounts
==================
(0) 0xe261e26aECcE52b3788Fac9625896FFbc6bb4424 (100 ETH)
(1) 0xcE16e8eb8F4BF2E65BA9536C07E305b912BAFaCF (100 ETH)
(2) 0x02f1c4C93AFEd946Cce5Ad7D34354A150bEfCFcF (100 ETH)
(3) 0x0B75F0b70076Fab3F18F94700Ecaf3B00fE528E7 (100 ETH)
(4) 0x7194d1F1d43c2c58302BB61a224D41B649e65C93 (100 ETH)
(5) 0xC9A2d92c5913eDEAd9a7C936C96631F0F2241063 (100 ETH)
(6) 0xD79BcDE5Cb11cECD1dfC6685B65690bE5b6a611e (100 ETH)
(7) 0xb6D080353f40dEcA2E67108087c356d3A1AfcD64 (100 ETH)
(8) 0x31A064DeeaD74DE7B9453beB4F780416D8859d3b (100 ETH)
(9) 0x37524a360a40C682F201Fb011DB7bbC8c8A247c6 (100 ETH)
Private Keys
==================
(0) 0x7f109a9e3b0d8ecfba9cc23a3614433ce0fa7ddcc80f2a8f10b222179a5a80d6
(1) 0x6ec1f2e7d126a74a1d2ff9e1c5d90b92378c725e506651ff8bb8616a5c724628
(2) 0xb4d7f7e82f61d81c95985771b8abf518f9328d019c36849d4214b5f995d13814
(3) 0x941536648ac10d5734973e94df413c17809d6cc5e24cd11e947e685acfbd12ae
(4) 0x5829cf333ef66b6bdd34950f096cb24e06ef041c5f63e577b4f3362309125863
(5) 0x8fc4bffe2b40b2b7db7fd937736c4575a0925511d7a0a2dfc3274e8c17b41d20
(6) 0xb6c10e2baaeba1fa4a8b73644db4f28f4bf0912cceb6e8959f73bb423c33bd84
(7) 0xfe8875acb38f684b2025d5472445b8e4745705a9e7adc9b0485a05df790df700
(8) 0xbdc6e0a69f2921a78e9af930111334a41d3fab44653c8de0775572c526feea2d
(9) 0x3e215c3d2a59626a669ed04ec1700f36c05c9b216e592f58bbfd3d8aa6ea25f9
HD Wallet
==================
Mnemonic: candy maple velvet cake sugar cream honey rich smooth crumble sweet treat
Base HD Path: m/44'/60'/0'/0/{account_index}
Gas Price
==================
20000000000
Gas Limit
==================
6721975
Call Gas Limit
==================
9007199254740991
Listening on 127.0.0.1:8545
To install Ganache into an npm project, run:
$ npm install ganache
You can then add ganache to your package.json scripts:
"scripts": {
"ganache": "ganache --wallet.seed myCustomSeed"
}
See Documentation for additional command line options.
then start it:
$ npm run ganache
You can use Ganache programmatically from Node.js. Install Ganache into your npm package:
$ npm install ganache
then you can use ganache as an EIP-1193 provider only, an EIP-1193 provider and JSON-RPC web server, as a Web3 provider, or an ethers provider.
const ganache = require("ganache");
const options = {};
const provider = ganache.provider(options);
const accounts = await provider.request({ method: "eth_accounts", params: [] });
const ganache = require("ganache");
const options = {};
const server = ganache.server(options);
const PORT = 8545;
server.listen(PORT, err => {
if (err) throw err;
console.log(`ganache listening on port ${PORT}...`);
const provider = server.provider;
const accounts = await provider.request({ method: "eth_accounts", params:[] });
});
To use ganache as a Web3 provider:
const Web3 = require("web3");
const ganache = require("ganache");
const web3 = new Web3(ganache.provider());
NOTE: depending on your web3 version, you may need to set a number of confirmation blocks
const web3 = new Web3(ganache.provider(), null, { transactionConfirmationBlocks: 1 });
const ganache = require("ganache");
const provider = new ethers.providers.Web3Provider(ganache.provider());
New RPC documentation coming soon! See https://github.com/trufflesuite/ganache-core/tree/master#options for Ganache v2 documentation.
See CONTRIBUTING.md for our guide to contributing to Ganache.
FAQs
A library and cli to create a local blockchain for fast Ethereum development.
The npm package ganache receives a total of 66,063 weekly downloads. As such, ganache popularity was classified as popular.
We found that ganache demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 9 open source maintainers collaborating on the project.
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Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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