import asynchttpserver, asyncdispatch, strutils, os, tables

var fileTable = initTable[string, string]()

proc getFileCont(path: string): string =
  let f = fileTable.hasKey(path)
  "sdflkj"

proc serveStatic*(req: Request) {.async.} =
  await req.respond(Http200, getFileCont(req.url.path))

# error
        ... C:\Users\sveri\IdeaProjects\nim\nosp\src\nosppkg\async_server.nim(12, 17) template/generic instantiation of `async` from here
        ... C:\Users\sveri\IdeaProjects\nim\nosp\src\nosppkg\async_server.nim(18, 17) Error: type mismatch: got <AsyncHttpServer, Port, proc (req: Request): Future[system.void]{.locks: <unknown>.}>
        ... but expected one of:
        ... proc serve(server: AsyncHttpServer; port: Port;
        ...           callback: proc (request: Request): Future[void] {.closure, gcsafe.};
        ...           address = ""): owned(Future[void])
        ...   first type mismatch at position: 3
        ...   required type for callback: proc (request: Request): Future[system.void]{.closure, gcsafe.}
        ...   but expression 'cb' is of type: proc (req: Request): Future[system.void]{.locks: <unknown>.}
        ...   This expression is not GC-safe. Annotate the proc with {.gcsafe.} to get extended error information.
        ... 1 other mismatching symbols have been suppressed; compile with --showAllMismatches:on to see them
        ... expression: serve(server, Port(5000), cb)