ESLint Plugin Require in Package

1.0.3 verified Sat Apr 25 auth: no javascript maintenance

ESLint plugin with a single rule that validates ES6 import statements reference packages listed in the local package.json dependencies, devDependencies, or peerDependencies. Version 1.0.3 has no recent updates. It differs from similar plugins by focusing solely on ES6 imports (not require) and checking against package.json fields. No longer actively maintained.

Common errors

error `b` : is not a dependency in the local package.json require-in-package ↓

cause Importing a module that is not listed in dependencies, devDependencies, or peerDependencies of package.json.

fix

Add the missing package to the appropriate dependency section in package.json, e.g., npm install b --save.

Warnings

deprecated The plugin uses deprecated ESLint format (ecmaFeatures, parser options). ↓

fix Use ESLint flat config or update to modern parser settings.

gotcha Only checks ES6 import statements, not CommonJS require(). ↓

fix Use a separate rule or plugin for require calls (e.g., eslint-plugin-import).

gotcha Will not flag imports that are not listed in package.json but exist in node_modules due to transitive dependencies. ↓

fix Run npm ls to verify a dependency is directly listed in package.json.

Install

npm install eslint-plugin-require-in-package

yarn add eslint-plugin-require-in-package

pnpm add eslint-plugin-require-in-package

Imports

Rule
```
module.exports = { plugins: ['require-in-package'], rules: { 'require-in-package/require-in-package': 2 } }
```
The rule is loaded by ESLint automatically when the plugin is installed. No explicit import statement needed.

Quickstart

Configures ESLint to use the require-in-package rule, which will error if an import is not listed in package.json.

// .eslintrc.js
module.exports = {
  parser: 'babel-eslint',
  plugins: ['require-in-package'],
  rules: {
    'require-in-package/require-in-package': 'error'
  }
};