20 posts · RSS
← All postsPlaybook for migrating a production app from AWS (Lambda, DynamoDB, RDS, S3, SQS, ElastiCache) to Cloudflare: per-primitive mapping, 3 strategies, cutover, rollback, 10 pitfalls....
KhaVan Per-primitive Cloudflare pricing (Workers, D1, KV, R2, Queues, DOs, Vectorize, Workers AI), tier breakpoints, AWS comparison, and 3 scale scenarios from blog to 100M req/month....
KhaVan Defense-in-depth for Cloudflare Workers: WAF + Bot Management, Turnstile, Access JWT, secret management, CSP/HSTS, 4 auth patterns, Zod validation, and anti-patterns to avoid....
KhaVan Cloudflare's 4 observability layers: Workers Logs (3-day retention), Tail Workers (realtime), Logpush (batch to R2/SIEM), Analytics Engine. Structured logging, alerts, debugging....
KhaVan Cloudflare's 3 media products: Stream (video, HLS/DASH), Images (upload-transform-deliver), and Image Resizing / cf.image. Pipelines, pricing, and when to pick which....
KhaVan Durable Objects are Cloudflare's single-writer primitive: 1 roomId = 1 instance, WebSocket Hibernation, persistent storage. 6 patterns, the API, and when DOs are overkill....
KhaVan Vectorize is Cloudflare's native vector DB, paired with Workers AI bge-m3 for full-edge RAG. Ingest + query pipelines, chunking, metadata, hybrid search with D1, reranking....
KhaVan Workers AI on edge GPUs, AI Gateway proxying OpenAI/Anthropic/Bedrock/Google with cache + rate limit + observability. Catalog, pricing, when to use which, retry/fallback....
KhaVan A 4-step pipeline: test → build → deploy → smoke. Scoped API token, 19-assertion smoke test, concurrent lock, preview envs, 10-second rollback. Full workflow file from this blog....
KhaVan Three full-stack frameworks on Workers differ in rendering, default JS, adapter, bindings. Real setup for each, SSG vs SSR vs hybrid, and why this blog picked Astro....
KhaVan Three choices: raw SQL (0KB), Drizzle (10KB, TS-first), Prisma (500KB WASM). Workflow, complex queries, migrations, type safety, and when an ORM costs more than it helps....
KhaVan Three options: vanilla fetch (0 bundle), Itty Router (3KB), Hono (13KB). Syntax, middleware, Zod validation, when to pick which, and why this blog uses vanilla at 40+ routes....
KhaVan Two of the hardest Worker primitives. Queues for fire-and-forget jobs with retry and DLQ. Durable Objects for single-writer coordination. When to pick which, with real patterns....
KhaVan R2 is Cloudflare's S3-compatible object storage with no egress fees. R2 vs S3 in real costs, 4 access patterns, S3 migration, and gotchas around consistency, metadata, lifecycle....
KhaVan D1 is SQLite at the edge with a primary region and read replicas: architecture, the 5 query methods, Sessions API, prepared-statement cache, and 7 production gotchas....
KhaVan Cloudflare KV is an eventually-consistent KV store with per-PoP caching. The real consistency model, limits that matter, 5 good patterns, 3 anti-patterns, and real gotchas....
KhaVan The practical dev loop for Workers: wrangler init, local wrangler dev with Miniflare, vitest, D1 migrations, secrets, deploying to 300+ PoPs in 30 seconds. Plus CI/CD and gotchas....
KhaVan A common frame for every Worker: Request is the entry point, Identity is who's calling, Storage is where you read and write. Applied to the Worker running this blog....
KhaVan The fetch handler, ExecutionContext, waitUntil, subrequest limits, CPU vs wall time, real cold starts. Six misconceptions from Node/Lambda. Code samples from this blog's Worker....
KhaVan Cloudflare is no longer just a CDN. Workers, D1, R2, KV, Queues, DOs, Workers AI, and Vectorize form an edge-native platform. The mental model, contrasted with Lambda....
KhaVan AI answers grounded in ~75 published posts with citations. Ask about Cloudflare, AWS, Zero Trust, cloud security.
