flutter_model_assert 0.0.4

Early runtime validator for backend JSON responses to prevent type crashes and detect API contract mismatches in Flutter.

0.0.1

• TODO: Describe initial release.

0.0.2

• Added detect<T>(json) method for one-line model inspection
• Improved error logs to pinpoint exact mismatched attributes
• Added nested JSON field path reporting
• Removed schema burden from developer usage
• Optimized early failure to prevent runtime crashes

0.0.3

Added

• Introduced detectModel<T>(json, sample: modelInstance) for one-line model inspection when debugging API crashes.
• Supports deep nested JSON validation (3–N layers) to pinpoint exact mismatched field paths.
• Prevents runtime crashes by reporting contract breakage before model parsing.

Improved

• Recursive JSON walker to support nested-to-nested field path detection.
• Cleaned nullable type check logic (removed duplicate methods).
• More readable console mismatch reports with expected vs received runtime types.

Notes

• Does not require manual schema definitions.
• Developer only provides a lightweight sample model instance using existing constructors.

0.0.4

Added

• New detect<T>(json) API for debugging backend type regressions with a single line.
• Deep recursive JSON walker supporting unlimited nested layers (3–N levels).
• Nested list path support like items[2].vendor.address.cityId.
• Includes backend value and received runtime type in error report.
• Designed for QA/Staging to catch contract breaks before model parsing.

Fixed

• Removed duplicated nullable check methods from earlier draft.
• Prevented unnecessary null comparison warnings in main library file.
• Package no longer depends on manual schema or descriptor files for detection.

Developer Benefits

• Pinpoints exact error-causing attribute path in console.
• Prevents fromJson() crashes by validating JSON before parsing.
• Reduces debugging time for double is not subtype of int and similar errors.

Notes

• Does not auto-modify model types (Flutter runtime reflection limitation).
• Intended for on-demand debugging when a type crash is encountered.