Files
FitTrack_GarminSync/specs/006-cli-auth-sync-mfa/research.md
sstent 28ab4f3416 Complete implementation planning for CLI app with MFA
- Created implementation plan with technical context
- Developed data models for User Session, Sync Job, and Authentication Token
- Defined API contracts for authentication, sync triggering, and status checking
- Created quickstart guide for CLI usage
- Updated agent context with new technology stack
- Verified constitution compliance for all design decisions
2025-12-18 13:50:51 -08:00

1.9 KiB

Research Findings for CLI App with MFA Support

Phase 0: Outline & Research

Decision

Selected Click as the CLI framework for the Python application based on the project constitution's requirement for CLI interfaces (must be Click or Typer). Decided to create a new CLI module that interfaces with the existing API structure.

Rationale

  • The constitution specifically requires either Click or Typer for CLI interfaces
  • Click provides excellent support for multi-level commands which is needed for auth/sync/status operations
  • Click has good support for handling MFA flows through prompts
  • Consistent with the existing backend architecture of the project

Technology Choices Made

  • CLI Framework: Click (as required by constitution)
  • API Client: httpx (modern, async-capable, excellent for API interactions)
  • Configuration: YAML (as required by constitution)
  • Output Formats: JSON, table, CSV (as required by constitution)
  • Token Storage: Local JSON file with appropriate security measures
  • Authentication Flow: OAuth2/MFA integration with existing backend API

Alternatives Considered

  • Typer vs Click: Typer offers better type hints integration, but Click was selected to match constitution requirements
  • argparse: Simpler but lacks the advanced features needed for this CLI application
  • Direct HTTP requests: httpx was chosen over basic requests library for better async support and API interactions

Integration Approach

The CLI app will integrate with the existing backend API, reusing authentication mechanisms and sync endpoints. This approach leverages existing functionality while providing a new interface for users who prefer command-line operations.

Security Considerations

  • Local token storage will use appropriate file permissions (600)
  • MFA handling will follow platform-appropriate secure input methods
  • Token refresh mechanisms will be implemented to handle expiration