gistfile1.txt

import asyncdispatch, asynchttpserver

type SomeObj = object
  someData: string 


proc manageUiCallback(req: Request): Future[void] {.async.} =
  var res = ""
  # This callback wants to access someObj somehow! 
  res.add someObj.someData
  await req.respond(Http200, res)

var someObj = SomeObj(someData: "foo")
var server = newAsyncHttpServer()
waitFor server.serve(Port(8080), manageUiCallback)