Binance WebSocket Market Data and Local Order Book Synchronization
Summary
This reference explains how to connect to Binance market data streams, manage subscriptions, and interpret events such as trades, candles, and order book updates. It describes raw and combined stream formats, connection and message limits, timestamp units, and how clients should respond to pings or prepare for a server shutdown. The examples illustrate the event fields and subscription requests, but they are interface documentation rather than evidence of a trading strategy.
The most detailed procedure shows how to build a local order book: buffer depth events, obtain a snapshot, align update IDs, and apply subsequent price-level changes while restarting if updates were missed. A stated limitation is that snapshot depth is capped, so levels beyond the initial snapshot may be incomplete until updated. The document is useful for market data ingestion and execution research, but it does not assess signal quality or trading performance.
Key ideas
- Binance offers raw and combined WebSocket streams for market data, with different payload formats.
- Connections have time, message-rate, and stream-count limits that clients must accommodate.
- Depth events contain update ID ranges that can be used to detect gaps in a local order book.
- A local book should be initialized from a snapshot and updated in sequence from buffered and live events.
- Levels beyond the snapshot limit may not reflect the full order book until they change.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.