Updating values in loop and generate Puppeteer Pdf in loop without timeout error

Hi,

I have a list, where I have to generate a pdf for each value in the list and keep track of which pdf is getting generated to display on UI (using socket assign).

I have two issues:

• It’s working fine for some time but after some time page is reloading and giving this error
  received timeout while communicating with server. Falling back to hard refresh for recovery
  while pdfs are getting generated in the background.
  It works fine when I remove PuppeteerPdf.Generate code

• I am unable to update the value (current_pdf) in the loop.

     for x <- results.fetch_data do
      handle_single_item(x,socket)
      end

 def handle_single_item(value,socket)do
       // fetch_kyc is another async fn.
          result= Task.async(fn ->fetch_kyc(value,socket) end)
          awaited_result = Task.await(result, :infinity)

         //print_pdf fn is to generate pdfs

           pdf_result = Task.async(fn -> print_pdf(socket, awaited_result) end )
          Task.await(pdf_result, :infinity)  
          {: ok, socket}
 end

def print_pdf(socket,result)do
    html = Task.async(fn -> Phoenix.View.render_to_string(
    CrmUpdatedWeb.HomeView,
    "template.html", formdata: result,  socket:  socket
    ) end)
    awaited_html = Task.await(html, :infinity)
    name = :rand.uniform(256)
    socket= assign(socket, :current_pdf, name)
    // Using PuppeteerPdf to generate pdf
    result=  PuppeteerPdf.Generate.from_string(awaited_html, "../RANDOM#{name}.pdf", [print_background: true,
      timeout: 20000
    ] )
     {: no reply, socket}
   end

Thanks.