Add ESM-first dual module support#226
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This change adds full ES Module support while maintaining backward
compatibility with CommonJS.
Key Changes:
- Package is now "type": "module" with ESM as primary format
- Dual compilation: ESM (dist/esm/) and CJS (dist/cjs/)
- Package.json exports map for conditional resolution
- Updated all imports to include .js extensions for ESM compatibility
Module Support:
- ESM: import gocardless from 'gocardless-nodejs'
- CJS: const gocardless = require('gocardless-nodejs')
- Subpath exports: import { parse } from 'gocardless-nodejs/webhooks'
- TypeScript types for both formats
- Tree-shaking support for modern bundlers
Build Output:
- dist/esm/ - ES Modules (primary)
- dist/cjs/ - CommonJS (compatibility layer)
- dist/types/ - Shared TypeScript definitions
Fixes #124
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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This change adds full ES Module support while maintaining backward compatibility with CommonJS.
Key Changes:
Module Support:
Build Output:
Fixes #124