✨ Major New Features #

🔐 Dynamic Credential Management

• Dynamic AccessKey/Secret/STS Token Support: Enhanced OSSConfig to support dynamic credential retrieval
  • Added accessKeyIdProvider, accessKeySecretProvider, and securityTokenProvider functions
  • Enables automatic STS token refresh without client reinitialization
  • Maintains backward compatibility with static credential configuration via OSSConfig.static()
  • Perfect for production environments requiring automatic credential rotation

📤 Extended Upload Methods

• Multi-Type Upload Support: Added convenient upload methods for different data types
  • putObjectFromString() - Upload string content with automatic UTF-8 encoding
  • putObjectFromBytes() - Upload byte array data directly
  • Maintains full compatibility with existing putObject() for file uploads
  • Implemented as extension methods in implementation classes, keeping interfaces clean

📚 Documentation & Examples #

• Enhanced STS Documentation: Complete examples for both static and dynamic STS token management
• Comprehensive Examples: Added examples for all upload types in example.dart
• README Synchronization: Ensured complete correspondence between English and Chinese versions

🧪 Testing & Quality #

• Comprehensive Test Coverage: Added extensive unit tests for new functionality
• All Tests Passing: 21/21 tests pass, including new multi-type upload tests
• Signature Compatibility: Verified compatibility with both V1 and V4 signature algorithms

Bug Fixes #

• 🐛 Fixed type mismatch in createSignedHeaders method
• 🔨 Improved header content-type extraction to avoid runtime type errors

Code Refactoring and Interface Improvements #

• ✨ Bump version to 1.0.3
• 🔨 Optimized createSignedHeaders method

Code Refactoring and Interface Improvements #

• Added queryParameters parameter to OSSRequestParams class for unified query parameter handling
• Refactored URI building logic into a dedicated buildOssUri method
• Improved handling of complex query parameter types using jsonEncode
• Updated all implementation classes to use the unified query parameter approach
• Removed redundant URI construction code across implementation classes
• Optimized createSignedHeaders method by removing uri parameter and adding queryParameters support

Bug Fixes #

• Updated repository links in package metadata

Interface Improvements #

• Unified progress callback parameters by moving all to OSSRequestParams class
• Added onSendProgress parameter to OSSRequestParams class
• Removed standalone onSendProgress/onProgress parameters from methods
• Updated all network requests to use the unified progress callback approach
• Updated example code to use the new parameter passing approach
• Simplified progress display format

Package Discoverability #

• Improved package metadata for better discoverability on pub.flutter-io.cn
• Updated package description and keywords
• Added proper license references

OSS Signature Improvements #

• Fixed V1 and V4 signature URL generation to ensure compatibility with Alibaba Cloud API
• Added signature version selection feature for all example methods
• Optimized code structure by moving signature URL implementation to separate files
• Added DateFormatter utility class for unified date format handling

• Initial release
• Support for file upload and download
• Support for large file multipart upload
• Support for upload and download progress monitoring
• Support for multipart upload management operations (list, abort, etc.)
• Support for both V1 and V4 signature algorithms