Audit Logging Protocol

1. Principles

• No Invisible Actions: Every state-changing API call (POST, PUT, DELETE) must produce a log entry.
• Traceability: Logs must include userId, action, resourceId, and metadata.

2. Implementation Standards

• Backend (API):
  • Use the project's standard Logger service (e.g., src/services/logger.ts or similar).
  • Example:

    await Logger.info({
      event: 'POST_CREATED',
      userId: user.id,
      metadata: { postId: newPost.id },
    });
    

• Database (Supabase):
  • Ensure tables have created_at, updated_at, and created_by columns.
  • Check if specific Audit Table inserts are required (e.g. audit_logs table).

3. Verification Checklist

• [ ] Does the new API endpoint call Logger?
• [ ] Are logs visible in Supabase/Dashboards?
• [ ] Is the log level appropriate (Info vs Error)?
• [ ] Does the log contain enough context to debug issues later?