Added #

• Exported useCaseTestHandler in main library export (lib/modular_api.dart) for convenient unit testing of UseCases without starting an HTTP server.
• Comprehensive documentation guides:
  • AGENTS.md — Framework overview and implementation guide optimized for AI assistants
  • docs/USECASE_DTO_GUIDE.md — Complete guide for creating Input/Output DTOs with type mapping reference and advanced examples
  • docs/usecase_implementation.md — Step-by-step guide for implementing UseCases with validation, database access, and repository patterns
  • docs/TESTING_GUIDE.md — Quick reference for testing UseCases using useCaseTestHandler
• Complete test suite for template project:
  • template/test/module1/hello_world_test.dart — 5 tests for HelloWorld use case
  • template/test/module2/sum_case_test.dart — 7 tests for SumCase use case
  • template/test/module2/upper_case_test.dart — 7 tests for UpperCase use case
  • template/test/module3/lower_case_test.dart — 7 tests for LowerCase use case
  • template/test/module3/multiply_case_test.dart — 9 tests for MultiplyCase use case
  • All 35 tests demonstrate proper usage of useCaseTestHandler with success and failure scenarios

Changed #

• Env now initializes automatically on first access (lazy singleton pattern). No need to call Env.init() explicitly, though it remains available for manual initialization if needed.
• .usecase() now trims leading slashes from usecase names to prevent double slashes in registered paths.

Changed #

• Env behavior: when a .env file is not found the library reads values from Platform.environment. If a requested key is missing from both sources an EnvKeyNotFoundException is thrown.

Added #

• Automatic health endpoint: the server registers GET /health which responds with ok on startup. Implemented in modular_api.dart (exposes _root.get('/health', (Request request) => Response.ok('ok'));).

All notable changes to this project will be documented in this file.

The format loosely follows Keep a Changelog and the project adheres to Semantic Versioning.

Changed #

• refactor: improve OpenAPI initialization (now initialized automatically internally)
• Rename middlewares as examples
• rename example project to template
• Add a simple example

Added #

• Initial release of modular_api. Main features:
  • Use-case centric framework with UseCase<I extends Input, O extends Output> base classes and DTO helpers (Input/Output).
  • HTTP adapter useCaseHttpHandler() to expose UseCases as Shelf Handlers.
  • Built-in middlewares: cors() and apiKey() for CORS handling and header-based API key authentication.
  • OpenAPI/Swagger generation helpers (OpenApi.init, OpenApi.docs) that infer schemas from DTO toSchema().
  • Utilities: Env.getString, Env.getInt, Env.setString (.env support via dotenv) and getLocalIp.
  • Minimal ODBC DbClient (DSN-based) exported for database access; example factories and usage provided in example/ (tested with Oracle and SQL Server; see NOTICE for provenance).
  • Example project demonstrating modules and usecases under example/ and unit-test helpers (useCaseTestHandler) under test/.
  • Public API exports in lib/modular_api.dart for easy consumption.