Posts tagged Cloudflare Developer.https://cloudsecop.net/https://cloudsecop.net/en/blog/migration-aws-to-cloudflare-en/https://cloudsecop.net/en/blog/migration-aws-to-cloudflare-en/Playbook for migrating a production app from AWS (Lambda, DynamoDB, RDS, S3, SQS, ElastiCache) to Cloudflare: per-primitive mapping, 3 strategies, cutover, rollback, 10 pitfalls.Sun, 28 Dec 2025 00:00:00 GMTCloudflareCloudflare DeveloperMigrationAWSServerlessKhaVanhttps://cloudsecop.net/en/blog/cost-model-production-en/https://cloudsecop.net/en/blog/cost-model-production-en/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.Sun, 21 Dec 2025 00:00:00 GMTCloudflareCloudflare DeveloperCostAWSPricingKhaVanhttps://cloudsecop.net/en/blog/secrets-csp-bot-management-en/https://cloudsecop.net/en/blog/secrets-csp-bot-management-en/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.Sat, 13 Dec 2025 00:00:00 GMTCloudflareCloudflare DeveloperSecurityCSPBot ManagementKhaVanhttps://cloudsecop.net/en/blog/logs-analytics-tail-workers-en/https://cloudsecop.net/en/blog/logs-analytics-tail-workers-en/Cloudflare's 4 observability layers: Workers Logs (3-day retention), Tail Workers (realtime), Logpush (batch to R2/SIEM), Analytics Engine. Structured logging, alerts, debugging.Fri, 05 Dec 2025 00:00:00 GMTCloudflareCloudflare DeveloperObservabilityLogsAnalytics EngineKhaVanhttps://cloudsecop.net/en/blog/stream-images-media-en/https://cloudsecop.net/en/blog/stream-images-media-en/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.Fri, 28 Nov 2025 00:00:00 GMTCloudflareCloudflare DeveloperStreamImagesMediaKhaVanhttps://cloudsecop.net/en/blog/durable-objects-realtime-en/https://cloudsecop.net/en/blog/durable-objects-realtime-en/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.Thu, 20 Nov 2025 00:00:00 GMTCloudflareCloudflare DeveloperDurable ObjectsWebSocketRealtimeKhaVanhttps://cloudsecop.net/en/blog/vectorize-rag-pattern-en/https://cloudsecop.net/en/blog/vectorize-rag-pattern-en/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.Wed, 12 Nov 2025 00:00:00 GMTCloudflareCloudflare DeveloperVectorizeRAGAIKhaVanhttps://cloudsecop.net/en/blog/workers-ai-model-catalog-en/https://cloudsecop.net/en/blog/workers-ai-model-catalog-en/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.Tue, 04 Nov 2025 00:00:00 GMTCloudflareCloudflare DeveloperWorkers AIAI GatewayLLMKhaVanhttps://cloudsecop.net/en/blog/ci-cd-wrangler-github-actions-en/https://cloudsecop.net/en/blog/ci-cd-wrangler-github-actions-en/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.Tue, 28 Oct 2025 00:00:00 GMTCloudflareCloudflare DeveloperCI/CDGitHub ActionsWranglerKhaVanhttps://cloudsecop.net/en/blog/astro-remix-sveltekit-workers-en/https://cloudsecop.net/en/blog/astro-remix-sveltekit-workers-en/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.Mon, 20 Oct 2025 00:00:00 GMTCloudflareCloudflare DeveloperAstroRemixSvelteKitKhaVanhttps://cloudsecop.net/en/blog/orm-d1-drizzle-prisma-en/https://cloudsecop.net/en/blog/orm-d1-drizzle-prisma-en/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.Sun, 12 Oct 2025 00:00:00 GMTCloudflareCloudflare DeveloperD1ORMDrizzlePrismaKhaVanhttps://cloudsecop.net/en/blog/router-choice-hono-itty-en/https://cloudsecop.net/en/blog/router-choice-hono-itty-en/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.Sun, 05 Oct 2025 00:00:00 GMTCloudflareCloudflare DeveloperWorkersRoutingKhaVanhttps://cloudsecop.net/en/blog/queues-durable-objects-en/https://cloudsecop.net/en/blog/queues-durable-objects-en/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.Sat, 27 Sep 2025 00:00:00 GMTCloudflareCloudflare DeveloperQueuesDurable ObjectsStorageKhaVanhttps://cloudsecop.net/en/blog/r2-object-storage-en/https://cloudsecop.net/en/blog/r2-object-storage-en/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.Fri, 19 Sep 2025 00:00:00 GMTCloudflareCloudflare DeveloperR2StorageKhaVanhttps://cloudsecop.net/en/blog/d1-production-patterns-en/https://cloudsecop.net/en/blog/d1-production-patterns-en/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.Thu, 11 Sep 2025 00:00:00 GMTCloudflareCloudflare DeveloperD1StorageSQLKhaVanhttps://cloudsecop.net/en/blog/kv-deep-dive-en/https://cloudsecop.net/en/blog/kv-deep-dive-en/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.Thu, 04 Sep 2025 00:00:00 GMTCloudflareCloudflare DeveloperKVStorageKhaVanhttps://cloudsecop.net/en/blog/wrangler-miniflare-dev-loop-en/https://cloudsecop.net/en/blog/wrangler-miniflare-dev-loop-en/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.Wed, 27 Aug 2025 00:00:00 GMTCloudflareCloudflare DeveloperWorkersDevOpsKhaVanhttps://cloudsecop.net/en/blog/mental-model-3-bindings-en/https://cloudsecop.net/en/blog/mental-model-3-bindings-en/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.Sat, 23 Aug 2025 00:00:00 GMTCloudflareCloudflare DeveloperWorkersArchitectureKhaVanhttps://cloudsecop.net/en/blog/workers-runtime-mental-model-en/https://cloudsecop.net/en/blog/workers-runtime-mental-model-en/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.Tue, 12 Aug 2025 00:00:00 GMTCloudflareCloudflare DeveloperWorkersRuntimeKhaVanhttps://cloudsecop.net/en/blog/cloudflare-developer-platform-intro/https://cloudsecop.net/en/blog/cloudflare-developer-platform-intro/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.Mon, 04 Aug 2025 00:00:00 GMTCloudflareCloudflare DeveloperWorkersEdge ComputingKhaVan