@socketregistry/packageurl-js

@socketregistry/packageurl-js

TypeScript-first Package URL (purl) parser and builder. Drop-in replacement for packageurl-js with better types and zero dependencies.

Why use this?

• 🎯 TypeScript-first: Full type safety and IntelliSense
• 📦 Zero dependencies: No supply chain bloat
• ✅ Spec compliant: Implements Package URL specification
• 🔨 Builder API: Fluent, ecosystem-specific builders

Installation

pnpm install @socketregistry/packageurl-js

Package override (recommended for drop-in replacement):

{
  "pnpm": {
    "overrides": {
      "packageurl-js": "npm:@socketregistry/packageurl-js@^1"
    }
  }
}

Requirements: Node >= 18.20.4

Usage

Parse existing purls:

import { PackageURL } from '@socketregistry/packageurl-js'

const purl = PackageURL.fromString('pkg:npm/lodash@4.17.21')
console.log(purl.name)      // 'lodash'
console.log(purl.version)   // '4.17.21'

Build new purls (recommended):

import { PackageURLBuilder } from '@socketregistry/packageurl-js'

// npm packages
PackageURLBuilder.npm().name('lodash').version('4.17.21').build()
// -> 'pkg:npm/lodash@4.17.21'

// Python packages
PackageURLBuilder.pypi().name('requests').version('2.28.1').build()
// -> 'pkg:pypi/requests@2.28.1'

// Maven with namespace and qualifiers
PackageURLBuilder.maven()
  .namespace('org.springframework')
  .name('spring-core')
  .version('5.3.21')
  .qualifier('classifier', 'sources')
  .build()
// -> 'pkg:maven/org.springframework/spring-core@5.3.21?classifier=sources'

Constructor API:

import { PackageURL } from '@socketregistry/packageurl-js'

new PackageURL('npm', null, 'express', '4.18.2')
// -> 'pkg:npm/express@4.18.2'

// With namespace and subpath
new PackageURL('npm', '@babel', 'runtime', '7.18.6', null, 'helpers/typeof.js')
// -> 'pkg:npm/%40babel/runtime@7.18.6#helpers/typeof.js'

Convert to URLs:

import { UrlConverter } from '@socketregistry/packageurl-js'

UrlConverter.toRepositoryUrl(purl)
// -> 'https://github.com/lodash/lodash'

UrlConverter.toDownloadUrl(purl)
// -> 'https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz'

Development

pnpm install   # Install dependencies
pnpm build     # Build
pnpm test      # Test
pnpm check     # Lint + typecheck