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feat: enhance Swagger/OpenAPI documentation with comprehensive examples and integration guides#15

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feat: enhance Swagger/OpenAPI documentation with comprehensive examples and integration guides#15
devin-ai-integration[bot] wants to merge 1 commit intomasterfrom
devin/1753808227-swagger-api-documentation

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feat: enhance Swagger/OpenAPI documentation with comprehensive examples and integration guides

Summary

This PR significantly enhances the Swagger/OpenAPI documentation for the banking application by adding comprehensive API examples, detailed error responses, and step-by-step integration guides. The changes span across multiple modules (auth, transactions, bills, users, currencies, messages) and include new documentation files to help developers integrate with the API effectively.

Key Changes:

  • Enhanced Swagger configuration with detailed API metadata, server URLs, and comprehensive tag documentation
  • Comprehensive DTO examples added to all request/response models with realistic data and validation constraints
  • Detailed error response documentation for all controller endpoints with proper HTTP status codes
  • New integration documentation including authentication flow guides and SDK examples
  • API descriptions improvements across all endpoints for better developer experience

Review & Testing Checklist for Human

  • Verify Swagger UI loads correctly - Navigate to /documentation endpoint and ensure all enhanced documentation displays properly without errors
  • Test API examples accuracy - Verify that the documented request/response examples match actual API behavior for key endpoints (login, create transaction, create account)
  • Check error response documentation - Test a few endpoints with invalid data to confirm the documented error responses are accurate
  • Validate integration guides - Follow the step-by-step examples in docs/api-integration-guide.md to ensure they work as documented
  • Confirm no compilation issues - Run yarn start:dev to ensure all imports are correct and TypeScript compiles cleanly

Diagram

%%{ init : { "theme" : "default" }}%%
graph TD
    SwaggerConfig["src/utils/swagger.ts<br/>Swagger Configuration"]:::major-edit
    
    AuthDTO["src/modules/auth/dtos/<br/>Login & Register DTOs"]:::major-edit
    TransactionDTO["src/modules/transaction/dtos/<br/>Transaction DTOs"]:::major-edit
    BillDTO["src/modules/bill/dtos/<br/>Bill Management DTOs"]:::major-edit
    
    AuthController["src/modules/auth/controllers/<br/>Auth Controller"]:::major-edit
    TransactionController["src/modules/transaction/controllers/<br/>Transaction Controller"]:::major-edit
    BillController["src/modules/bill/controllers/<br/>Bill Controller"]:::major-edit
    
    IntegrationGuide["docs/api-integration-guide.md<br/>Integration Guide"]:::major-edit
    AuthGuide["docs/authentication.md<br/>Auth Documentation"]:::major-edit
    
    SwaggerUI["/documentation<br/>Swagger UI"]:::context
    
    SwaggerConfig --> SwaggerUI
    AuthDTO --> AuthController
    TransactionDTO --> TransactionController
    BillDTO --> BillController
    
    AuthController --> SwaggerUI
    TransactionController --> SwaggerUI
    BillController --> SwaggerUI
    
    IntegrationGuide -.-> SwaggerUI
    AuthGuide -.-> SwaggerUI
    
    subgraph Legend
        L1[Major Edit]:::major-edit
        L2[Minor Edit]:::minor-edit
        L3[Context/No Edit]:::context
    end
    
    classDef major-edit fill:#90EE90
    classDef minor-edit fill:#87CEEB
    classDef context fill:#FFFFFF
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Notes

  • Environment Testing Limitation: Unable to fully test the Swagger UI due to database connection issues in the development environment. The TypeScript compilation was successful, but end-to-end functionality verification is needed.
  • Import Fix Applied: Fixed missing ApiResponse import in auth controller that was causing compilation errors.
  • Comprehensive Coverage: Enhanced documentation across 6 main modules (Auth, Transactions, Bills, Users, Currencies, Messages) with consistent patterns.
  • Production Ready: Added both development (localhost:4000) and production server URLs in Swagger configuration.

Session Info: https://app.devin.ai/sessions/575b7722ff654041aa7060c19a7fd400
Requested by: @akkp-windsurf

…es and integration guides

- Enhanced Swagger configuration with detailed API information and server URLs
- Added comprehensive examples to all DTOs across auth, transaction, bill modules
- Created detailed authentication documentation with JWT Bearer token examples
- Added integration guides with step-by-step API usage instructions
- Improved controller endpoint descriptions with proper error responses
- Added authentication flow documentation and security features overview

Co-Authored-By: Arthur Poon <arthur.poon@windsurf.com>
@devin-ai-integration
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