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Lessons (13)
- Design a Reliable Notification System
Deliver email, SMS, push and in-app messages with preferences, isolation, idempotency, provider failover and auditable states. ![Notification …
- How a Web Request Works
… You establish a reliable delivery route → TCP connection. 3. You put the letter in a sealed envelope → TLS …
- Design a Logging and Monitoring Platform
Ingest high-volume telemetry reliably, separate hot search from cheap retention, and make alerting useful rather than noisy …
- Big Data: ETL, Warehouses and Streaming
Build reliable analytical pipelines with batch/stream processing, lake and warehouse layers, and explicit freshness contracts. ![Analytics pipeline …
- Proxies, APIs and Real-Time Protocols
… way chat WebSocket Connection lifecycle/fan-out Ordered reliable bytes TCP More overhead Loss-tolerant media UDP/QUIC …
- Storage Engines & Database Operations
Understand B-trees, LSM trees, write-ahead logs, connection pools, backups and the signals behind database reliability. What …
- Monolith vs Microservices
… The network is reliable. 2. Latency is zero. 3. Bandwidth is infinite. 4. The network is secure. 5 …
- Backend Languages: Node.js, Go, Python & Rust
… same fuel (JavaScript) as the frontend. - Go 🚚 = a reliable delivery van: simple to drive, very efficient, built for …
- Observability: Logs, Metrics & Traces
… Budget burned → focus on reliability. Alerting that doesn't ruin your sleep - ✅ Alert on symptoms users feel (error …
- Helm, kubectl Cheat Sheet & Best Practices
… Production checklist for every workload mermaid mindmap root((Production-ready workload)) Reliability 2+ replicas readiness + liveness probes PodDisruptionBudget …
- Next.js Rendering: CSR, SSR, SSG, ISR & Server Components
… served from a CDN. ✅ Fastest possible, cheapest, very reliable. ❌ Data is only as fresh as the last build …
- Vertical Slice Architecture & the Modular Monolith
… Calls between parts In-process ✅ In-process (fast, reliable) Network (slow, can fail) Transactions ✅ Easy ✅ Easy within a …
- Clean Architecture in Depth
… mechanisms (API + CLI + jobs), a need for fast, reliable tests, likely infrastructure changes. ❌ Prototypes, small CRUD apps, short …