Month 1: Backend Infrastructure + Testing

Period: January 5 - February 5, 2026 Status: Completed Changelog: Month 1 Changelog

Summary

Month 1 significantly exceeded the original plan. While scoped for testing setup and bug fixes, it delivered a complete backend infrastructure overhaul including error handling, configuration, logging, authorization, security middleware, validation, and full test coverage for all API routes.

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Delivered

Testing Infrastructure (Planned)

• Vitest 3.2.4 with happy-dom environment and coverage reporting
• MSW (Mock Service Worker) setup with handlers for all API routes
• Prisma mocking utilities (mock-per-model pattern, not isolated DB)
• Test helpers: auth-helpers, api-helpers, fixtures, route-helpers
• 14 unit test suites covering all lib modules
• 21 integration test files covering all 32 route handlers (154 tests)

Error Handling (Unplanned)

• ApiError class hierarchy with 9 error subclasses
• withErrorHandling HOF for all API routes
• handleApiError centralized error formatter
• Standardized error responses across all API routes

Configuration & Environment (Unplanned)

• Zod-based environment variable validation (env.ts)
• Structured AppConfig with caching and resetConfig()
• .env.example updated with all variables

Logging (Originally Month 2)

• Pino structured logging with request context (AsyncLocalStorage)
• Request logging middleware
• Log levels via environment variable
• Replaced all console.log/error calls with Pino

Authorization & Security (Originally Month 3)

• RBAC model: USER < VIEWER < OPERATOR < ADMIN
• Prisma UserRole enum migration
• Role management API endpoint (PUT /api/users/[userId]/role)
• withAdminAuth, withRoleAuth, withPermissionAuth HOF wrappers
• JWT authentication (/api/jwt, /api/jwt/protected)
• Maintenance mode middleware with admin bypass

Security Middleware (Unplanned)

• Rate limiting (in-memory + Upstash Redis support)
• Request size limits (JSON, large, upload presets)

Validation (Unplanned)

• Centralized Zod schemas for all API inputs
• validateBody() and validateQuery() middleware
• All API routes migrated to Zod validation

Framework & Dependencies

• Next.js 16 upgrade with ESLint 9 flat config
• @getalby/sdk migrated to v7 API
• react-resizable-panels migrated to v4 API
• Configs converted to ESM syntax

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Deferred Items

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Stats

• 118 files changed, 13,391 insertions, 3,215 deletions
• 66 commits, 18 PRs merged
• 7 epics completed, 18 issues closed