findPackageJSON

external fun findPackageJSON(specifier: String): String?(source)

external fun findPackageJSON(specifier: String, base: String = definedExternally): String?(source)

external fun findPackageJSON(specifier: String, base: ERROR CLASS: Symbol not found for URL = definedExternally): String?(source)

external fun findPackageJSON(specifier: ERROR CLASS: Symbol not found for URL): String?(source)

external fun findPackageJSON(specifier: ERROR CLASS: Symbol not found for URL, base: String = definedExternally): String?(source)

external fun findPackageJSON(specifier: ERROR CLASS: Symbol not found for URL, base: ERROR CLASS: Symbol not found for URL = definedExternally): String?(source)

/path/to/project
  ├ packages/
    ├ bar/
      ├ bar.js
      └ package.json // name = '@foo/bar'
    └ qux/
      ├ node_modules/
        └ some-package/
          └ package.json // name = 'some-package'
      ├ qux.js
      └ package.json // name = '@foo/qux'
  ├ main.js
  └ package.json // name = '@foo'

// /path/to/project/packages/bar/bar.js
import { findPackageJSON } from 'node:module';

findPackageJSON('..', import.meta.url);
// '/path/to/project/package.json'
// Same result when passing an absolute specifier instead:
findPackageJSON(new URL('../', import.meta.url));
findPackageJSON(import.meta.resolve('../'));

findPackageJSON('some-package', import.meta.url);
// '/path/to/project/packages/bar/node_modules/some-package/package.json'
// When passing an absolute specifier, you might get a different result if the
// resolved module is inside a subfolder that has nested `package.json`.
findPackageJSON(import.meta.resolve('some-package'));
// '/path/to/project/packages/bar/node_modules/some-package/some-subfolder/package.json'

findPackageJSON('@foo/qux', import.meta.url);
// '/path/to/project/packages/qux/package.json'

Since

v22.14.0

Parameters

specifier

The specifier for the module whose package.json to retrieve. When passing a bare specifier, the package.json at the root of the package is returned. When passing a relative specifier or an absolute specifier, the closest parent package.json is returned.

base

The absolute location (file: URL string or FS path) of the containing module. For CJS, use __filename (not __dirname!); for ESM, use import.meta.url. You do not need to pass it if specifier is an absolute specifier.