open protocol stream on transient connection

[sudiptab2100]

I'm using dialProtocol(maddr, protocol) to connect to dial to another peer via relay node where maddr is relay multiaddress of the peer. But there is a problem connecting to it as -
CodeError: Cannot open protocol stream on transient connection

Setting option runOnTransientConnection as true in removes the error message but the stream doesn't seem to open -
const stream = await node.dialProtocol(peer_multiaddr, chatProtocol, { runOnTransientConnection: true });.

There is a PR (1890) by @achingbrain that talks about it, how to configure the normal nodes and relay node to open a protocol stream. But it's not very clear.

There is a closed issue on - Docs: Add docs for transient connections. Not sure if the docs are added for it or not. @maschad

Can anyone help me with the documentations or any small example, how to do it?

[sudiptab2100]

Okay, I have figured it out. We have to open a protocol stream making the runOnTransientConnection flag as true and also on the incoming side we have to enable this flag in node.handle to receive. Example -

const stream = await node.dialProtocol(peer_multiaddr, chatProtocol, { runOnTransientConnection: true });  // open protocol stream
...
...
// Incoming streams
node.handle(
    chatProtocol, 
    async ({ connection, stream, protocol }) => {
        stdinToStream(stream);
        streamToConsole(stream);
    },
    {
        runOnTransientConnection: true
    }
);

[sudiptab2100]

For reference check this out - libp2p-chat