eslint-config

Common eslint config for all node.js repositories

Install

Install packages

pnpm install --save-dev @1inch/eslint-config@latest

Also it is required to install peer dependencies

And then add file eslint.config.mjs:

import oneInchEslintConfig from "@1inch/eslint-config";

export default oneInchEslintConfig

Remove .eslintrc.js / .eslintrc.json and .eslintignore — ESLint 9 flat config replaces them.

Use eslint.config.mjs for ignores and custom rules:

import oneInchEslintConfig from "@1inch/eslint-config";

export default [
    ...oneInchEslintConfig,
    {
        ignores: [
            "**/*.mock.ts",
            "**/node_modules",
            "**/.github",
            "**/.idea",
            "**/dist",
            "**/*.json",
            "**/*.yml",
            "**/*.html",
            "**/migrations",
        ],
    },
    {
        settings: {
            "import-x/resolver": {
                typescript: {}
            }
        },
        rules: {
            // your custom rules here
        }
    }
];

Add prettier file .prettierrc.js:

module.exports = {
    singleQuote: true,
    trailingComma: 'none',
    tabWidth: 4,
    printWidth: 120,
    bracketSpacing: false,
    semi: false
}

Migration from v3

Breaking changes

1. ESLint flat config only — delete .eslintrc.js / .eslintrc.json and .eslintignore, create eslint.config.mjs instead

2. eslint-plugin-import replaced by eslint-plugin-import-x — all import/ rule prefixes and settings changed to import-x/:

| Before (v3) | After (v4) | |---|---| | plugins: ['import'] | not needed (included in config) | | settings: { 'import/resolver': { typescript: {} } } | settings: { 'import-x/resolver': { typescript: {} } } | | rules: { 'import/order': ... } | rules: { 'import-x/order': ... } |

3. Removed packages — uninstall these, they are no longer needed:

pnpm remove \
  @typescript-eslint/eslint-plugin \
  @typescript-eslint/parser \
  eslint-plugin-import \
  eslint-config-standard \
  eslint-plugin-n \
  eslint-plugin-promise \
  @eslint/compat \
  @eslint/eslintrc

4. New packages — install these instead:

pnpm install --save-dev \
  eslint@10 \
  @eslint/js@10 \
  typescript-eslint@8 \
  eslint-plugin-import-x@4 \
  eslint-import-resolver-typescript@4 \
  eslint-config-prettier@10 \
  eslint-plugin-unused-imports@4 \
  @stylistic/eslint-plugin@5 \
  globals@17

Example migration

Before (.eslintrc.js):

module.exports = {
    extends: ['@1inch'],
    plugins: ['import'],
    settings: {
        'import/resolver': {
            typescript: {}
        }
    },
    rules: {
    }
}

After (eslint.config.mjs):

import oneInchEslintConfig from "@1inch/eslint-config";

export default [
    ...oneInchEslintConfig,
    {
        settings: {
            "import-x/resolver": {
                typescript: {}
            }
        },
        rules: {
        }
    }
];