hardhat-ganache

This Hardhat plugin automatically starts and stops Ganache when running tests or scripts.

What

This plugin creates a network named ganache. When this network is used, a Ganache server will be automatically started before running tests and scripts, and stopped when finished.

Installation

npm install --save-dev @nomiclabs/hardhat-ganache

And add the following statement to your hardhat.config.js:

require("@nomiclabs/hardhat-ganache");

Or, if you are using TypeScript, add this to your hardhat.config.ts:

import "@nomiclabs/hardhat-ganache";

Tasks

This plugin hooks into the test and run tasks to wrap them in the instantiation and termination of a ganache-core instance. This plugin creates no additional tasks.

Environment extensions

This plugin doesn't extend the Hardhat Runtime Environment.

Usage

There are no additional steps you need to take for this plugin to work.

Configuration

You can set any of the Ganache's options through the ganache network config. All of them are supported, with the exception of accounts.

This example sets a larger block gas limit and the default balance of Ganache's accounts.

module.exports = {
  defaultNetwork: "ganache",
  networks: {
    ganache: {
      gasLimit: 6000000000,
      defaultBalanceEther: 10
    }
  }
};

Note: The accounts option is not currently supported.