Hi all,
I’ve got a question related to Cloudflare Workers and WebSocket.
Please consider this situation:
- worker instance W1 running in some PoP in e.g. Asia has accepted a WebSocket connection incoming from client C1
- worker instance W2 running in some PoP in e.g. Europe has accepted a WebSocket connection incoming from client C2
- the two WebSocket connections in W1 and W2 are long-lived and kept open by the workers
When receiving a WebSocket message M on C1, is it possible for W1 to forward that message to specifically W2 to send M on C2?
It seems two problems are involved:
- How does W1 decide to which worker instance W2 the message M needs to be forwarded? Keeping a map in e.g. a Durable Object? How can worker instances be identified?
- Even if worker instance identification, and decision on which worker instance a message is to be forwarded to can be solved, how would I actually open a connection from W1 to W2 to forward M? Is that even possible without having e.g. a Durable Object in the middle that keeps two connections incoming from W1 and W2, and which can do the forwarding of M?
Thanks a lot for any tips or hints or docs to read!
Cheers,
/Tobias