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add more contents to CHANGELOG AND README
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‎CHANGELOG.md‎

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## [0.2.1] - 2021-07-17
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- copies http response body to a temp file first if byte size is greater than 16K before parsing it from the persisted temp file
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## [0.1.0] - 2021-07-05
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# Changelog
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- Initial release
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All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [0.4.0] - 2024-07-02
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### 🚀 Major Refactoring Release
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This release represents a refactor of the TwelvedataRuby gem with breaking changes for better maintainability and developer experience.
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### 💥 Breaking Changes
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- **Ruby Version**: Now requires Ruby 3.0+ (was 2.4+)
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- **Dependencies**: Updated to modern versions
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- `httpx` updated to `~> 1.0` (was `~> 0.14`)
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- All development dependencies updated to latest versions
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- **Client Interface**: Simplified client configuration API
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- `TwelvedataRuby.client(**options)` now properly configures singleton instance
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- Removed deprecated `options=` writer in favor of `configure(**options)`
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- **Error Handling**: Completely rewritten error hierarchy
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- More specific error classes for different failure scenarios
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- Better error messages with context
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- Proper error attributes for debugging
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- **Utils Module**: Refactored utility methods
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- `to_d` renamed to `to_integer` with better error handling
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- Added `present?`, `blank?`, and improved helper methods
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- Better nil and edge case handling
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### ✨ Added
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- **Modern Ruby Support**: Full Ruby 3.0+ compatibility with modern idioms
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- **Enhanced Error Classes**:
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- `ConfigurationError`, `NetworkError` for specific error types
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- Better inheritance hierarchy for `ResponseError` classes
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- Error objects now include original exceptions and debugging context
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- **Improved Response Handling**:
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- Better content type detection and parsing
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- Enhanced CSV handling with proper error recovery
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- File operations with better error handling
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- Response inspection and debugging methods
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- **Better HTTP Client Integration**:
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- Proper HTTPX configuration and error handling
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- Support for concurrent requests
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- Network timeout and connection error handling
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- **Enhanced Testing**:
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- 100% test coverage with comprehensive specs
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- Proper HTTP request mocking with WebMock
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- Shared examples and contexts for better test organization
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- Edge case testing for all components
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- **Development Tools**:
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- RuboCop configuration with modern rules
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- GitHub Actions CI/CD pipeline
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- YARD documentation generation
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- SimpleCov coverage reporting
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### 🔧 Changed
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- **Client Class**: Complete rewrite
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- Singleton pattern properly implemented
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- Better configuration management
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- Dynamic method definition with caching
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- Thread-safe operation
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- **Endpoint Class**: Enhanced validation and error reporting
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- Better parameter validation with detailed error messages
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- Improved format handling (JSON/CSV)
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- More robust parameter processing
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- **Request Class**: Cleaner API and better validation
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- Proper delegation to endpoint
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- Enhanced equality and hashing methods
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- Better debugging support with `inspect` and `to_s`
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- **Response Class**: Major improvements in parsing and error handling
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- Robust JSON/CSV parsing with proper error recovery
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- Better large file handling with temporary files
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- Enhanced file operations and attachment handling
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- Improved debugging and inspection methods
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### 🐛 Fixed
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- **Memory Leaks**: Proper resource cleanup in response handling
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- **Edge Cases**: Better handling of nil values, empty responses, malformed data
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- **Concurrency**: Thread-safe singleton client implementation
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- **Error Propagation**: Proper error bubbling with context preservation
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- **Parameter Validation**: More accurate validation with better error messages
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### 📚 Documentation
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- **Complete README Rewrite**: More examples and more API documentation
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- **YARD Documentation**: Inline documentation for all public methods
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- **Error Handling Guide**: Examples for most (if not all) error scenarios
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- **Advanced Usage**: Concurrent requests, configuration options, debugging
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### 🧪 Testing
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- **Comprehensive Test Suite**: 100% code coverage with RSpec
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- **Proper Mocking**: WebMock integration for HTTP request stubbing
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- **Edge Case Coverage**: Tests for error conditions, malformed data, network issues
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- **Performance Tests**: Basic performance and memory usage validation
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- **Integration Tests**: End-to-end API workflow testing
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### 🔄 Migration Guide
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#### Updating Dependencies
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```ruby
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# In your Gemfile, update the Ruby version requirement
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ruby '>= 3.0.0'
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# Update the gem
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gem 'twelvedata_ruby', '~> 0.4.0'
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```
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#### Client Configuration
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```ruby
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# Before (0.3.x)
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client = TwelvedataRuby.client
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client.options = { apikey: "key", connect_timeout: 300 }
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# After (0.4.x)
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client = TwelvedataRuby.client(apikey: "key", connect_timeout: 300)
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# or
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client = TwelvedataRuby.client
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client.configure(apikey: "key", connect_timeout: 300)
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```
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#### Error Handling
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```ruby
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# Before (0.3.x)
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response = client.quote(symbol: "INVALID")
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if response.is_a?(Hash) && response[:errors]
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# handle endpoint errors
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elsif response.error
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# handle API errors
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end
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# After (0.4.x)
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response = client.quote(symbol: "INVALID")
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case response
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when Hash
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# Handle validation errors
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puts response[:errors]
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when TwelvedataRuby::Response
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if response.error
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case response.error
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when TwelvedataRuby::UnauthorizedResponseError
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puts "Invalid API key"
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when TwelvedataRuby::NotFoundResponseError
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puts "Symbol not found"
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end
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else
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puts response.parsed_body
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end
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when TwelvedataRuby::NetworkError
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puts "Network connectivity issue"
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end
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```
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#### Utils Methods
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```ruby
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# Before (0.3.x)
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TwelvedataRuby::Utils.to_d("123", 0)
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# After (0.4.x)
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TwelvedataRuby::Utils.to_integer("123", 0)
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```
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## [0.3.0] - 2021-07-15
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### Added
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- Initial stable release
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- Basic API endpoint support
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- JSON and CSV response formats
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- Simple error handling
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- Ruby 2.4+ support
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### Dependencies
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- `httpx ~> 0.14.5`
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- Basic development dependencies
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---
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## [Unreleased]
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### Planned
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- Performance optimizations
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- Additional endpoint coverage
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- Enhanced WebSocket support (if available from Twelve Data)
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- Caching mechanisms for frequent requests
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---
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**Note**: This changelog follows semantic versioning. Major version bumps indicate breaking changes, minor versions add functionality, and patch versions fix bugs.

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