Implementation notes for engineers running Web3 node infrastructure: how log subscriptions fail quietly, what the node actually guarantees, and a checkpoint backfill pattern with reorg handling and rollout checks.
A practical guide for teams that must turn a single venue’s ticker feed into a rate they can defend: ownership split, weight budgeting, staleness flags, and failover checks.
A practical design for running a free-tier price API inside a live trading system, covering credit budgets, cache ownership, staleness gates, and provider failover.
An engineering note for teams that mix REST snapshots with streaming prices, covering reconnect windows, gap handling, and the checks that keep one published price trustworthy.
This article separates crypto exchange API latency into venue publish time, network transit, and local processing cost, then examines how sequenced order book feeds stay consistent and how they recover after gaps or reconnects. It is written for engineers building production market data pipelines.