How quic stream created?

[Kation L (Kation)]

I'm using quic as a RPC transport.
I'm confused that how packet send/receive while create a bidirectional stream.
Once a stream create on a client, does it need to wait create response from peer before sending data?
Should I keep stream after a completed rpc or create new stream everytime?
Is that have same latency?

[Guillaume Hetier (guhetier)]

You may want to look at the RFC 9000 for details.
There is no need to wait for the peer when creating a stream. Your client can open a stream, send data and close the stream in a single datagram.
For an RPC, a typical design is to use one stream per request (which makes it easy to handle concurrent requests) - although that's up to you.