Package Exports

hardhat-abi-exporter
hardhat-abi-exporter/dist/src/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (hardhat-abi-exporter) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Hardhat ABI Exporter

Export Ethereum smart contract ABIs on compilation via Hardhat.

Versions of this plugin prior to 2.0.0 were released as buidler-abi-exporter.

Installation

npm install --save-dev hardhat-abi-exporter
# or
yarn add --dev hardhat-abi-exporter

Usage

Load plugin in Hardhat config:

require('hardhat-abi-exporter');

Add configuration under the abiExporter key:

option	description	default
`path`	path to ABI export directory (relative to Hardhat root)	`'./abi'`
`runOnCompile`	whether to automatically export ABIs during compilation	`false`
`clear`	whether to delete old ABI files in `path` on compilation and on clean	`false`
`flat`	whether to flatten output directory (may cause name collisions)	`false`
`only`	`Array` of `String` matchers used to select included contracts, defaults to all contracts if `length` is 0	`[]`
`except`	`Array` of `String` matchers used to exclude contracts	`[]`
`spacing`	number of spaces per indentation level of formatted output	`2`
`pretty`	whether to use interface-style formatting of output for better readability	`false`
`format`	format type ("json", "minimal", "fullName"). Alternative to `pretty`	`json`
`filter`	`Function` with signature `(abiElement: any, index: number, abi: any, fullyQualifiedName: string) => boolean` used to filter elements from each exported ABI	`() => true`
`rename`	`Function` with signature `(sourceName: string, contractName: string) => string` used to rename an exported ABI (incompatible with `flat` option)	`undefined`

Note that the configuration formatted as either a single Object, or an Array of objects. An Array may be used to specify multiple outputs.

abiExporter: {
  path: './data/abi',
  runOnCompile: true,
  clear: true,
  flat: true,
  only: [':ERC20$'],
  spacing: 2,
  pretty: true,
  format: "minimal",
}

// or

abiExporter: [
  {
    path: './abi/pretty',
    pretty: true,
  },
  {
    path: './abi/ugly',
    pretty: false,
  },
]

// or

abiExporter: [
  {
    path: './abi/json',
    format: "json",
  },
  {
    path: './abi/minimal',
    format: "minimal",
  },
  {
    path: './abi/fullName',
    format: "fullName",
  },
]

The included Hardhat tasks may be run manually:

npx hardhat export-abi
npx hardhat clear-abi
# or
yarn run hardhat export-abi
yarn run hardhat clear-abi

By default, the hardhat compile task is run before exporting ABIs. This behavior can be disabled with the --no-compile flag:

npx hardhat export-abi --no-compile
# or
yarn run hardhat export-abi --no-compile

The path directory will be created if it does not exist.

The clear option is set to false by default because it represents a destructive action, but should be set to true in most cases.

ABIs files are saved in the format [CONTRACT_NAME].json.

Development

Install dependencies via Yarn:

yarn install

Setup Husky to format code on commit:

yarn prepare