10.0.0 • Published 23 days ago

package-json v10.0.0

Weekly downloads
8,690,297
License
MIT
Repository
github
Last release
23 days ago

package-json

Get metadata of a package from the npm registry

Install

npm install package-json

Usage

import packageJson from 'package-json';

console.log(await packageJson('ava'));
//=> {name: 'ava', …}

// Also works with scoped packages
console.log(await packageJson('@sindresorhus/df'));

API

packageJson(packageName, options?)

packageName

Type: string

Name of the package.

options

Type: object

version

Type: string\ Default: latest

Package version such as 1.0.0 or a dist tag such as latest.

The version can also be in any format supported by the semver module. For example:

  • 1 - Get the latest 1.x.x
  • 1.2 - Get the latest 1.2.x
  • ^1.2.3 - Get the latest 1.x.x but at least 1.2.3
  • ~1.2.3 - Get the latest 1.2.x but at least 1.2.3
fullMetadata

Type: boolean\ Default: false

By default, only an abbreviated metadata object is returned for performance reasons. Read more, or see the type definitions.

allVersions

Type: boolean\ Default: false

Return the main entry containing all versions.

registryUrl

Type: string\ Default: Auto-detected

The registry URL is by default inferred from the npm defaults and .npmrc. This is beneficial as package-json and any project using it will work just like npm. This option is only intended for internal tools. You should not use this option in reusable packages. Prefer just using .npmrc whenever possible.

omitDeprecated

Type: boolean\ Default: true

Whether or not to omit deprecated versions of a package.

If set, versions marked as deprecated on the registry are omitted from results. Providing a dist tag or a specific version will still return that version, even if it's deprecated. If no version can be found once deprecated versions are omitted, a VersionNotFoundError is thrown.

PackageNotFoundError

The error thrown when the given package name cannot be found.

VersionNotFoundError

The error thrown when the given package version cannot be found.

Authentication

Both public and private registries are supported, for both scoped and unscoped packages, as long as the registry uses either bearer tokens or basic authentication.

Proxies

Proxy support is not implemented in this package. If necessary, use a global agent that modifies fetch, which this package uses internally.

Support for this may come to Node.js in the future.

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