Hi,<p>I've released Node.js lib that provides real-time market data feeds for top crypto exchanges.<p>It handles data normalization, order book reconstruction, custom trade bars (eg volume based etc), consolidates multiple feeds into one etc.
and connects directly to exchanges APIs via WebSockets, has built-in reconnection and stale connection detection logic and more.<p>It also uses async iteration (for await..of) instead of callbacks.<p>https://github.com/tardis-dev/tardis-node