Library term·FinTech & data science
Using Node.js with Market Data APIs
Event-driven IO suits streaming quotes; mind backpressure and reconnect logic for WebSockets.
Authored by·Editorially reviewed
Onur Erkan YıldızFounder, Financial Engineer · CMB-licensed
Higher education in Financial Engineering and Money & Capital Markets. SPK (Turkey CMB) licence. 16 years across institutional markets, research, and quant-driven analytics.
Overview
Pattern: REST for session bootstrap + WebSocket for incremental updates. Use idempotent reconnect with sequence numbers.Practical takeaway
Normalise timestamps to UTC; snapshot order books in batches when possible.How this connects to Finvestopia
Our backend uses similar patterns to fan-out ticks you see on Finvestopia.Related entries
Educational content authored by our team — informational only, not investment advice.