Creating and Publishing Packages

Creating and Publishing Packages

About

• Code Sharing: Reusable components
• Standard Structure: pub conventions
• Versioning: Semantic versioning
• Publication: pub.dev upload

Main Topics

1. Package Structure

   • Definition: Required files
   • Example:

     my_package/
       lib/
         my_package.dart
       test/
       pubspec.yaml
       README.md

2. pubspec.yaml

   • Definition: Package metadata
   • Example:

     name: my_package
     description: A useful package
     version: 1.0.0
     homepage: https://example.com

3. Documentation

   • Definition: README and API docs

   • Example:

     /// A calculator library
     library calculator;
     
     /// Adds two numbers
     int add(int a, int b) => a + b;

4. Testing

   • Definition: Unit tests
   • Example:

     test('adds numbers', () {
       expect(add(1, 2), equals(3));
     });

5. Publishing

   • Definition: Upload process
   • Example:

     flutter pub publish --dry-run
     flutter pub publish

How to Use

• Create: flutter create --template=package
• Develop: Implement core functionality
• Test: Comprehensive coverage
• Publish: Follow guidelines

How It Works

1. Validation: pub checks
2. Upload: Package archive
3. Processing: pub.dev analysis
4. Distribution: Available to users

Example:

# Create package
flutter create --template=package awesome_widgets

# Develop and test
cd awesome_widgets
flutter test

# Publish
flutter pub publish

Conclusion

Creating and publishing Dart packages enables code reuse across the ecosystem. By following standard structures, writing comprehensive documentation, and adhering to semantic versioning, developers can contribute valuable tools to the community while maintaining professional standards.