Session ID support?

[damian0815]

I would like to have some way of using a persistent session ID. I believe the way to do this is to implement the sessionIdGenerator arg for StreamableHTTPTransport - currently inside initializeMcpApiHandler it's hardcoded to undefined (https://github.com/vercel/mcp-adapter/blob/0b92b2e915108e24cefb9df5667f6befff840737/src/handler/mcp-api-handler.ts#L263C1-L266C6)

Please provide an optional implementation of session IDs or expose this sessionIdGenerator parameter.

[quuu]

@damian0815 what's the purpose of using sessionId's in your case?

we're working on supporting more of the official MCP TS SDK but curious about your specific use case

[damian0815]

wrangling UUIDs. UUIDs are kryptonite for LLMs, so instead we use an LLM friendly proxy id for groups of UUIDs (think URL shorteners). it would be ideal to be able to isolate UUIDs per session - at the moment we're just using a single global LRU, which to be fair works just fine. but we're thinking forward to use cases where persistent sessions could be useful