Use `prologue` and `amysql` to implement WEB API, running errors, how to solve?

[enthus1ast]

the docs <https://nim-lang.org/docs/manual.html#threads-threadvar-pragma> state 
that: "(Every thread local variable needs to be replicated at thread creation.)"

So you somehow must do this:
    
    
    var foo {.threadvar.}: ref bool
    
    template fixFoo() =
      echo "define foo for: ", getThreadId()
      foo = new(bool)
      foo[] = false
    
    proc faa() {.thread.} =
      fixFoo()
      echo foo[]
    
    var th1: Thread[void]
    var th2: Thread[void]
    
    createThread(th1, faa)
    createThread(th2, faa)
    
    fixFoo()
    echo foo[]
    
    joinThreads(th1, th2)
    
    
    Run