WebSocket doesn't specify data format, it's just bytes, so they have to handle that themselves. It looks like they're using Arrow IPC. Since they're using Arro

WebSocket doesn't specify data format, it's just bytes, so they have to handle that themselves. It looks like they're using Arrow IPC. Since they're using Arrow they might look into Flight RPC [1] which is made for this use case. [1] https://arrow.apache.org/docs/format/Flight.html https://arrow.apache.org/docs/format/Flight.html