Systems & Webhook Architecture
Deep technical teardowns on Stripe signature mechanics, idempotency traps, and zero-loss distributed ingress.
HookArmor 1.4.2: Solving Webhook Latency Spikes with HTTP Keep-Alive & SQLite Burst Concurrency Hardening
How HookArmor v1.4.2 cuts webhook forwarding latency to sub-10ms via reusable HTTP/HTTPS keep-alive connection pools, hardens SQLite under burst concurrency with PRAGMA busy_timeout, and secures zero-downtime hot backups.
Release & ArchitectureHookArmor 1.4: Webhook Replay Deduplication, AES-256 Body Encryption & Competitor Comparison
How HookArmor v1.4.0 stops duplicate side effects on body-only signature providers (Shopify, GitHub, Razorpay), adds AES-256-GCM at-rest body encryption, and how it compares architecturally against Svix, Hookdeck, and DIY SQS queues.
Security & WebhooksWhy Stripe Webhook Replays Fail Signature Verification (And The Re-Signing Fix)
Why standard `stripe.webhooks.constructEvent()` throws "Timestamp outside the tolerance zone" on retried or replayed webhooks older than 300 seconds, and the cryptographic re-signing architecture required to solve it.
Distributed SystemsThe SQS Deduplication Trap: Why Naive Webhook Queues Silently Drop Payment Retries
Rolling your own SQS + Lambda webhook queue looks simple in 20 lines of code until database connection exhaustion or Lambda OOM crashes turn your unique constraint dedupe into a silent event incinerator.