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Phase 7E: FastAPI Audit Report

Date: November 30, 2025 Auditor: Claude Code (Automated Audit) Scope: All documentation in docs/ directory Purpose: Identify remaining FastAPI references and code examples

Executive Summary​

Audit Results:

  • Total files with "FastAPI" mentions: 54 files
  • Files with FastAPI code (imports): 11 files
  • Files with FastAPI decorators (@app.): 7 files
  • Critical unconverted files: 2 workflow documents
  • Status: ⚠️ INCOMPLETE CONVERSION - 2 critical files still contain FastAPI code

Critical Findings: Unconverted FastAPI Code​

🚨 HIGH PRIORITY: Workflow Documents​

Status: These files were marked as "converted" in TASKLIST but still contain FastAPI code

1. graceful-license-release.md​

Location: docs/diagrams/workflows/graceful-license-release.md Issue: Contains FastAPI endpoint code (lines 241-284+) Impact: HIGH - This is a core workflow specification Action Required: Convert FastAPI code to Django REST Framework

FastAPI code found:

from fastapi import APIRouter, Depends, HTTPException, status
# ... FastAPI endpoint implementation

No Django equivalent found - File needs complete conversion

2. heartbeat-mechanism.md​

Location: docs/diagrams/workflows/heartbeat-mechanism.md Issue: Contains FastAPI endpoint code (lines 244+) Impact: HIGH - This is a core workflow specification Action Required: Convert FastAPI code to Django REST Framework

FastAPI code found:

from fastapi import APIRouter, Depends, HTTPException, status
# ... FastAPI endpoint implementation

No Django equivalent found - File needs complete conversion

Medium Priority: ADR Files with FastAPI Code​

ADR-019: Monitoring & Observability​

Location: docs/architecture/adrs/adr-019-monitoring-observability.md Issue: Contains FastAPI code examples Impact: MEDIUM - ADRs should show Django patterns Action Required: Update code examples to Django REST Framework

ADR-020: Security Hardening​

Location: docs/architecture/adrs/adr-020-security-hardening.md Issue: Contains FastAPI code examples Impact: MEDIUM - ADRs should show Django patterns Action Required: Update code examples to Django REST Framework

Low Priority: Reference/Historical Documents​

Legitimate FastAPI References (No Action Required)​

These files appropriately reference FastAPI in historical/explanatory context:

  1. fastapi-to-django-conversion-guide.md

    • Status: ✅ OK - Conversion guide (before/after examples expected)
    • Purpose: Documents the migration from FastAPI to Django

  2. project-plan-v3-fastapi-backup.md

    • Status: ✅ OK - Historical backup
    • Purpose: Preserves original FastAPI-based plan

  3. day-1-execution-guide.md

    • Status: ⚠️ REVIEW - May contain FastAPI code examples
    • Action: Review and update if needed

  4. implementation-roadmap.md

    • Status: ⚠️ REVIEW - May contain FastAPI references
    • Action: Update references to Django

Files with "FastAPI" Mentions (Context Only)​

Planning and Project Management (54 files total)​

Most mentions are in:

  • tasklist-with-checkboxes.md - References FastAPI→Django conversion tasks
  • critical-path-analysis.md - References completed conversions
  • project-plan.md - References architecture decision to use Django
  • phase-7-completion-report.md - Documents conversion progress

Status: ✅ OK - These are project management references, not code

Architecture Documents​

  • c1-system-context.md - May reference FastAPI in historical context
  • c2-container-diagram.md - Should reference Django (verify)
  • C3-REDIS-COMPONENTS.md - May have FastAPI code examples

Action: Spot-check for any FastAPI code examples

Validation Results​

✅ Successfully Converted (Verified)​

Diagrams created in Phase 7C-7D:

  • ✅ C4-02: License Acquisition Flow - 100% Django REST Framework
  • ✅ C4-03: JWT Authentication Flow - 100% Django REST Framework
  • ✅ C3-04: GKE Components - 100% Django/Kubernetes
  • ✅ C3-05: Identity Platform - 100% Django + Firebase
  • ✅ C3-06: Cloud KMS - 100% Django + Cloud KMS
  • ✅ C3-07: Monitoring - 100% Django + Prometheus

Previously converted (Phase 7B):

  • ✅ license-acquisition-workflow.md - Verified Django code
  • ✅ user-registration-flow.md - Verified Django code

❌ Incomplete Conversions​

Workflow documents marked complete but still have FastAPI:

  • ❌ graceful-license-release.md - NEEDS CONVERSION
  • ❌ heartbeat-mechanism.md - NEEDS CONVERSION

Immediate (P0 - Before Build Starts)​

  1. Convert graceful-license-release.md

    • Replace FastAPI code with Django REST Framework
    • Update all code examples
    • Verify consistency with C4-02 patterns

  2. Convert heartbeat-mechanism.md

    • Replace FastAPI code with Django REST Framework
    • Update all code examples
    • Verify consistency with C4-02 patterns

Estimated Time: 1 hour total (30 min each)

High Priority (P1 - This Week)​

  1. Update ADR-019 and ADR-020

    • Replace FastAPI code examples with Django
    • Ensure ADRs reflect actual implementation
    • Estimated time: 30 minutes

  2. Review C3-REDIS-COMPONENTS.md

    • Verify no FastAPI code examples
    • Update if necessary
    • Estimated time: 15 minutes

Medium Priority (P2 - Before MVP)​

  1. Review day-1-execution-guide.md

    • Update any FastAPI references
    • Ensure guide reflects Django implementation
    • Estimated time: 30 minutes

  2. Comprehensive documentation sweep

    • Search for any remaining "@app." patterns
    • Search for "Pydantic" models (Django uses serializers)
    • Search for "Depends()" patterns
    • Estimated time: 1 hour

Conversion Checklist​

For each file requiring conversion, follow this pattern:

FastAPI → Django REST Framework Mapping​

FastAPI PatternDjango REST Framework Equivalent
from fastapi import APIRouterfrom rest_framework.decorators import api_view
from fastapi import DependsDjango dependency injection or request attributes
from fastapi import HTTPExceptionfrom rest_framework.exceptions import APIException
from pydantic import BaseModelfrom rest_framework import serializers
@router.get("/endpoint")@api_view(['GET'])
@router.post("/endpoint")@api_view(['POST'])
async def endpoint(...)def endpoint(request)
raise HTTPException(status_code=404)return Response(status=status.HTTP_404_NOT_FOUND)

Validation Steps​

After conversion:

  1. ✅ Search file for "from fastapi import" → Should return 0 results
  2. ✅ Search file for "@router." or "@app." → Should return 0 results
  3. ✅ Search file for "from rest_framework import" → Should find imports
  4. ✅ Search file for "@api_view" or "APIView" → Should find decorators
  5. ✅ Verify code examples compile (Phase 7E task)

Grep Commands for Validation​

Find all FastAPI imports:

grep -r "from fastapi import" docs/

Find all FastAPI decorators:

grep -r "@app\.\(get\|post\|put\|delete\|patch\)" docs/
grep -r "@router\.\(get\|post\|put\|delete\|patch\)" docs/

Find all Django imports:

grep -r "from rest_framework import" docs/
grep -r "from django" docs/

Verify no Pydantic models (should use serializers):

grep -r "from pydantic import BaseModel" docs/

Phase 7 Completion Impact​

Current Status​

Phase 7A: ✅ 6/6 complete (100%) Phase 7B: ✅ 8/8 complete (100%) Phase 7C: ✅ 4/4 complete (100%) Phase 7D: ✅ 5/7 complete (71%) - 2 tasks incomplete Phase 7E: ⏸️ 0/6 complete (0%) - In progress

Corrected Task Status​

Phase 7B/7C Workflow Conversions:

  • ✅ license-acquisition-workflow.md (100+ lines) - VERIFIED
  • ✅ user-registration-flow.md (30+ lines) - VERIFIED
  • ❌ heartbeat-mechanism.md (80+ lines) - INCOMPLETE ⬅️ NEEDS CONVERSION
  • ❌ graceful-license-release.md (60+ lines) - INCOMPLETE ⬅️ NEEDS CONVERSION

Corrected Phase 7 Total: 18/22 tasks complete (82%) instead of 20/22 (91%)

Next Steps​

Today (November 30, 2025)​

  1. Complete FastAPI → Django conversions (1 hour)

    • graceful-license-release.md
    • heartbeat-mechanism.md

  2. Re-run FastAPI audit (10 minutes)

    • Verify 0 FastAPI code in workflow/diagram files
    • Generate clean audit report

  3. Continue Phase 7E validation (3 hours)

    • Validate all Django code examples compile
    • Create cross-reference index

This Week​

  1. Complete remaining Phase 7D tasks (5 hours)

    • Integration Guides (3 files, 3 hours)
    • Project Planning Docs (4 files, 2 hours)

  2. Phase 7 completion report (1 hour)

    • Document all conversions
    • Verify 100% Django code
    • Sign off on Phase 7

Summary​

Critical Issues Found: 2 files Immediate Action Required: Yes - Convert 2 workflow documents Time to Resolve: ~1 hour Blocker for Build: Yes - These are core workflow specifications

Recommendation: Complete the 2 FastAPI→Django conversions immediately before proceeding with build phase. These are critical workflow documents that will be referenced during implementation.

Audit Completed: November 30, 2025 Next Audit: After conversions complete (same day) Audit Status: ⚠️ INCOMPLETE - 2 critical files need conversion

Sign-off: Pending completion of graceful-license-release.md and heartbeat-mechanism.md conversions