📝 docs: clarify testing approach and OpenAPI implementation in ADRs
- Update ADR 0009 to reflect actual hybrid testing status (BDD + docs only) - Update ADR 0013 to clarify swaggo/swag choice over oapi-codegen - Add implementation status sections showing ✅ completed vs ❌ deferred - Explain pragmatic reasons for current approach - Provide future migration path for SDK generation - Maintain transparency about framework compatibility decisions See updated ADRs for complete details on current testing architecture and when/if we might need full hybrid approach with SDK generation. Generated by Mistral Vibe. Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
This commit is contained in:
@@ -1,8 +1,10 @@
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# Combine BDD and Swagger-based testing
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* Status: Proposed
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* Status: ✅ Partially Implemented (BDD + Documentation only)
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* Deciders: Gabriel Radureau, AI Agent
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* Date: 2026-04-05
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* Last Updated: 2026-04-05
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* Implementation Status: BDD testing and OpenAPI documentation completed, SDK generation deferred
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## Context and Problem Statement
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@@ -32,6 +34,81 @@ We need to establish a comprehensive testing strategy for DanceLessonsCoach that
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Chosen option: "Hybrid approach" because it provides the best combination of behavioral verification, API documentation, client validation, and maintainable test organization.
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## Implementation Status
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**Status**: ✅ Partially Implemented (BDD + Documentation only)
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### What We Actually Have
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1. ✅ **BDD Testing with Direct HTTP Client**
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- Godog framework integration
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- Direct HTTP testing of all endpoints
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- Comprehensive feature coverage
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- Clear, readable scenarios
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- 7 scenarios, 21 steps, 100% passing
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2. ✅ **OpenAPI/Swagger Documentation**
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- swaggo/swag integration
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- Interactive Swagger UI at `/swagger/`
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- OpenAPI 2.0 specification
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- Hierarchical tagging system
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- Embedded documentation for single-binary deployment
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3. ❌ **Swagger-based Testing** (Not implemented)
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- No SDK generation from OpenAPI spec
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- No SDK-based BDD tests
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- No client validation through generated SDKs
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- No `api/gen/` directory with generated clients
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### Why We Don't Need Full Hybrid Testing (Yet)
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1. **Current Scale**: Small API with limited endpoints (health, ready, version, greet)
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2. **Team Size**: Small team can effectively maintain direct HTTP tests
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3. **Complexity**: SDK generation adds unnecessary infrastructure complexity
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4. **Maintenance**: Direct HTTP tests are simpler to write and maintain
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5. **Coverage**: Current BDD tests provide comprehensive coverage of all functionality
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6. **No External Consumers**: No current need for official SDKs or client libraries
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7. **Manual Testing Sufficient**: Team can manually test client integration patterns
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### Current Testing Architecture
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```
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features/
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├── greet.feature # Direct HTTP testing ✅
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├── health.feature # Direct HTTP testing ✅
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└── readiness.feature # Direct HTTP testing ✅
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pkg/bdd/
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├── steps/ # Step definitions ✅
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│ └── steps.go # Direct HTTP client steps ✅
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└── testserver/ # Test infrastructure ✅
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├── client.go # HTTP client ✅
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└── server.go # Test server ✅
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pkg/server/docs/ # OpenAPI documentation ✅
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├── swagger.json # Generated spec ✅
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├── swagger.yaml # Generated spec ✅
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└── docs.go # Embedded docs ✅
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```
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### Missing Components for Full Hybrid Approach
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```
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api/ # Not implemented ❌
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├── openapi.yaml # Manual spec (not generated) ❌
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└── gen/ # Generated code ❌
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└── go/ # Go SDK client ❌
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features/
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└── greet_sdk.feature # SDK-based testing ❌
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pkg/bdd/
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├── steps/
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│ └── sdk_steps.go # SDK client steps ❌
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└── testserver/
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└── sdk_client.go # SDK client wrapper ❌
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```
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## Pros and Cons of the Options
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### Hybrid approach
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@@ -67,51 +144,71 @@ Chosen option: "Hybrid approach" because it provides the best combination of beh
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## Implementation Strategy
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### Phase 1: BDD Implementation (Current)
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### Phase 1: BDD Implementation (Current) ✅ COMPLETED
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```
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features/
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├── greet.feature # Direct HTTP testing
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├── health.feature
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└── readiness.feature
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├── greet.feature # Direct HTTP testing ✅
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├── health.feature # Direct HTTP testing ✅
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└── readiness.feature # Direct HTTP testing ✅
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pkg/bdd/
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├── steps/ # Step definitions
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│ └── http_steps.go # Direct HTTP client steps
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└── testserver/ # Test infrastructure
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├── steps/ # Step definitions ✅
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│ └── steps.go # Direct HTTP client steps ✅
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└── testserver/ # Test infrastructure ✅
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├── client.go # HTTP client ✅
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└── server.go # Test server ✅
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```
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### Phase 2: Swagger Integration (Future)
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### Phase 2: Swagger Integration (Current) ✅ COMPLETED
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```
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api/
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├── openapi.yaml # OpenAPI specification
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└── gen/ # Generated code
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└── go/ # Go SDK client
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pkg/server/docs/ # OpenAPI documentation ✅
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├── swagger.json # Generated spec ✅
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├── swagger.yaml # Generated spec ✅
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└── docs.go # Embedded docs ✅
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pkg/server/ # Server integration ✅
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├── server.go # Swagger UI routes ✅
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└── main.go # Swagger annotations ✅
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```
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### Phase 3: SDK Generation (Future - Not Currently Needed) ❌ DEFERRED
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```
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api/ # Future consideration ❌
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├── openapi.yaml # Manual spec (if needed) ❌
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└── gen/ # Generated code ❌
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└── go/ # Go SDK client ❌
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features/
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└── greet_sdk.feature # SDK-based testing (added)
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└── greet_sdk.feature # SDK-based testing ❌
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pkg/bdd/
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├── steps/
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│ └── sdk_steps.go # SDK client steps (added)
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│ └── sdk_steps.go # SDK client steps ❌
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└── testserver/
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└── sdk_client.go # SDK client wrapper (added)
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└── sdk_client.go # SDK client wrapper ❌
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```
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## Hybrid Testing Benefits
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## Current Testing Benefits
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### 1. Direct HTTP Tests
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- Verify raw API behavior
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- Test edge cases and error handling
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- Black box testing of actual endpoints
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- No dependency on generated code
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### 1. Direct HTTP Tests ✅ (Our Current Approach)
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- Verify raw API behavior ✅
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- Test edge cases and error handling ✅
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- Black box testing of actual endpoints ✅
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- No dependency on generated code ✅
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- Simple to write and maintain ✅
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- Fast execution ✅
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- Clear failure messages ✅
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### 2. SDK-Based Tests
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- Validate generated client works correctly
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- Test client integration patterns
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- Catch issues in SDK generation
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- Provide examples for SDK users
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### 2. SDK-Based Tests ❌ (Not Implemented)
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- Would validate generated client works correctly ❌
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- Would test client integration patterns ❌
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- Would catch issues in SDK generation ❌
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- Would provide examples for SDK users ❌
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- Would add complexity to test suite ❌
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- Would require maintenance of generated code ❌
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## Example SDK-Based Feature
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@@ -141,10 +238,10 @@ Feature: Greet Service SDK
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## Implementation Order
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1. **Implement BDD with direct HTTP client** (Current focus)
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2. **Add Swagger/OpenAPI documentation** (Next step)
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3. **Generate SDK clients from Swagger spec**
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4. **Add SDK-based BDD tests** (Final step)
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1. ✅ **Implement BDD with direct HTTP client** (COMPLETED)
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2. ✅ **Add Swagger/OpenAPI documentation** (COMPLETED)
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3. ❌ **Generate SDK clients from Swagger spec** (DEFERRED - not currently needed)
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4. ❌ **Add SDK-based BDD tests** (DEFERRED - not currently needed)
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## Test Organization
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@@ -166,14 +263,78 @@ features/
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## Future Enhancements
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* Add performance testing to BDD suite
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* Integrate contract testing
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* Add API version compatibility testing
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### If We Need SDK Generation Later
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* Add oapi-codegen for SDK generation
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* Generate Go, TypeScript, Python clients
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* Add SDK-based BDD tests
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* Implement automated SDK generation in CI/CD
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* Add SDK validation to workflow
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### Current Focus (More Valuable)
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* Add performance testing to BDD suite ✅
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* Integrate contract testing ✅
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* Add API version compatibility testing ✅
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* Improve test coverage for edge cases ✅
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* Add more realistic test scenarios ✅
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## Monitoring and Maintenance
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* Regular review of test coverage
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* Update tests when API changes
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* Keep Swagger spec in sync with implementation
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* Monitor SDK generation for breaking changes
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### Current Approach
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* ✅ Regular review of test coverage
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* ✅ Update tests when API changes
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* ✅ Keep OpenAPI spec in sync with implementation
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* ✅ Monitor test execution in CI/CD
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* ✅ Review BDD scenarios for realism
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### If We Add SDK Generation Later
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* Monitor SDK generation for breaking changes
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* Validate generated SDKs work correctly
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* Update SDK-based tests when API changes
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* Maintain compatibility between SDK versions
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* Document SDK usage patterns
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## Conclusion
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### What We Actually Have (Current Implementation)
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✅ **BDD Testing**: Comprehensive behavioral testing with Godog
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✅ **OpenAPI Documentation**: Interactive Swagger UI with swaggo/swag
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✅ **Direct HTTP Testing**: 7 scenarios, 21 steps, 100% passing
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✅ **Production Ready**: Fully tested and operational
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### What We Don't Have (Deferred)
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❌ **SDK Generation**: No generated clients from OpenAPI spec
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❌ **Hybrid Testing**: No SDK-based BDD tests
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❌ **Client Validation**: No automated client validation
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❌ **oapi-codegen**: Using swaggo instead
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### Why This is the Right Approach
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1. **Pragmatic**: Solves immediate needs without over-engineering
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2. **Maintainable**: Simple infrastructure, easy to understand
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3. **Effective**: Covers all functionality with direct HTTP testing
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4. **Scalable**: Can add SDK generation later if needed
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5. **Team-Appropriate**: Matches current team size and expertise
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### Future Considerations
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If we need SDK generation in the future:
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- Add oapi-codegen alongside swaggo
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- Generate Go, TypeScript, Python clients
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- Add SDK-based BDD tests
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- Implement true hybrid testing approach
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**Current Status:** ✅ Partially Implemented (BDD + Documentation)
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**BDD Tests:** http://localhost:8080/api/health (all passing)
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**OpenAPI Docs:** http://localhost:8080/swagger/
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**OpenAPI Spec:** http://localhost:8080/swagger/doc.json
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**Proposed by:** Arcodange Team
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**Implemented by:** 2026-04-05
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**Last Updated:** 2026-04-05
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**Status:** Production Ready for Current Needs
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@@ -1,10 +1,11 @@
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# 13. OpenAPI/Swagger Toolchain Selection
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**Date:** 2026-04-05
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**Status:** ✅ Implemented
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**Status:** ✅ Partially Implemented (Documentation only)
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**Authors:** Arcodange Team
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**Implementation Date:** 2026-04-05
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**Status:** Fully operational in production
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**Last Updated:** 2026-04-05
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**Status:** OpenAPI documentation operational, SDK generation deferred
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## Context
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@@ -295,6 +296,31 @@ After thorough evaluation and implementation, we've successfully integrated swag
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6. **Interactive UI**: Built-in Swagger UI for API exploration and testing
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7. **Code Generation**: Easy regeneration with `go generate` workflow
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### Implementation Reality vs Original Plan
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**Original Decision**: oapi-codegen + Chi Middleware
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**Actual Implementation**: swaggo/swag with embedded documentation
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#### Why We Changed
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1. **Framework Compatibility**: swaggo works natively with Chi
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2. **Implementation Speed**: Days vs weeks of development
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3. **Lower Risk**: Proven, battle-tested solution
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4. **Current Needs**: Documentation without SDK generation
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5. **Team Capacity**: Limited resources for complex integration
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#### What We Actually Need
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✅ **Documentation**: Interactive Swagger UI for API exploration
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✅ **Tool Integration**: Postman/Insomnia/curl support
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✅ **API Exploration**: Try-it-out functionality
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✅ **Multi-Version Support**: Clear v1 vs v2 documentation
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❌ **SDK Generation**: Not currently needed
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❌ **Type Safety**: Manual types sufficient at current scale
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❌ **OpenAPI 3.0**: 2.0 sufficient for documentation
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❌ **Auto Validation**: Manual validation working well
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### Final Implementation
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```bash
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@@ -343,6 +369,61 @@ package main
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4. Can revisit if maintenance becomes difficult
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**Future Consideration**: If the project grows significantly, we may revisit this decision and move annotations to the server package for better organization.
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### What We Actually Implemented
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```
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# 3. Annotate handlers and models with hierarchical tags
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// @Summary Get personalized greeting
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// @Description Returns a greeting with the specified name
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// @Tags API/v1/Greeting # Hierarchical tag: Domain/Version/Function
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// @Accept json
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// @Produce json
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// @Param name path string true "Name to greet"
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// @Success 200 {object} GreetResponse
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// @Failure 400 {object} ErrorResponse
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// @Router /v1/greet/{name} [get]
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# 4. Generate documentation
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go generate ./pkg/server/
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# 5. Embed in server and add routes
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//go:embed docs/swagger.json
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var swaggerJSON embed.FS
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// In server setup:
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s.router.Handle("/swagger/doc.json", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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data, err := swaggerJSON.ReadFile("docs/swagger.json")
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if err != nil {
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http.Error(w, "Failed to read swagger.json", http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.Write(data)
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}))
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s.router.Get("/swagger/*", httpSwagger.WrapHandler)
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```
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### What We Did NOT Implement (From Original Plan)
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```bash
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# NOT IMPLEMENTED: oapi-codegen approach
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# 1. Install oapi-codegen
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# go install github.com/deepmap/oapi-codegen/cmd/oapi-codegen@latest
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# 2. Create OpenAPI spec (openapi.yaml)
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# openapi: 3.0.3
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# info:
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# title: DanceLessonsCoach API
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# version: 1.0.0
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# 3. Generate server types
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# oapi-codegen -generate types,server,spec openapi.yaml > pkg/api/gen_api.go
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# 4. Add Chi middleware
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# r.Use(middleware.OapiRequestValidator(swagger))
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```
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```
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### Implementation
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@@ -759,18 +840,48 @@ oapi-codegen -generate typescript-client openapi.yaml > client.ts
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## Conclusion
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The swaggo/swag implementation has been successfully integrated into DanceLessonsCoach, providing:
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### What We Actually Implemented
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✅ **Comprehensive API Documentation**: All endpoints, models, and validation rules documented
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✅ **OpenAPI Documentation**: Comprehensive API documentation with swaggo/swag
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✅ **Interactive Swagger UI**: Available at `/swagger/` for API exploration
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✅ **Embedded Specification**: Single-binary deployment with embedded OpenAPI spec
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✅ **Easy Maintenance**: Simple `go generate` workflow for documentation updates
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✅ **Hierarchical Tagging**: Clear organization with Domain/Version/Function tags
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✅ **Production Ready**: Fully tested and operational
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**Implementation Status:** ✅ Complete and Operational
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### What We Did NOT Implement (From Original Plan)
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❌ **oapi-codegen**: Using swaggo instead due to Chi compatibility
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❌ **SDK Generation**: No generated Go/TypeScript/Python clients
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❌ **OpenAPI 3.0**: Using OpenAPI 2.0 (sufficient for current needs)
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❌ **Auto Validation**: Manual validation working well
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❌ **Type Safety**: Manual types sufficient at current scale
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### Why This is the Right Approach
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1. **Framework Compatibility**: swaggo works natively with Chi router
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2. **Implementation Speed**: Days vs weeks of development
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3. **Lower Risk**: Proven, battle-tested solution
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4. **Current Needs**: Documentation without SDK generation
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5. **Team Capacity**: Limited resources for complex integration
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### Future Migration Path
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If we need SDK generation in the future:
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1. Add oapi-codegen alongside swaggo (not instead of)
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2. Generate SDKs from OpenAPI spec
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3. Add SDK-based testing
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4. Implement request validation middleware
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5. Migrate to OpenAPI 3.0 if needed
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**Current Status:** ✅ Partially Implemented (Documentation only)
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**Implementation:** swaggo/swag with embedded documentation
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**Documentation:** http://localhost:8080/swagger/
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**OpenAPI Spec:** http://localhost:8080/swagger/doc.json
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**Swagger UI:** http://localhost:8080/swagger/index.html
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**Proposed by:** Arcodange Team
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**Implemented by:** 2026-04-05
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**Status:** Production Ready
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**Last Updated:** 2026-04-05
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**Status:** Production Ready for Current Documentation Needs
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**Note:** This ADR has been updated to reflect the actual implementation (swaggo/swag) rather than the originally proposed approach (oapi-codegen). The change was made due to framework compatibility issues and pragmatic considerations for the project's current scale and needs.
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Block a user