javascript - setting hidden text from server-Node.js(express)/Asp.net-core to read it from client- angular 2

Question

My(assumption) flow is I'll get a form post method html which will contains TOKEN catching it in server side.

    app.post('/callback', (req, res)=> {
    var token = req.body.access_token
    res.cookie('access',token); //instead, i want to set in variable/text field
//res.send('<input type=text name="access_token" value="token" hidden/>')
})

Now, I want to get the token from the variable/text-field from client side which is set by server.

1. Is it possible to set a value in a text field? (if so, how?)

2. Is it possible for client side to read a value which is set by the server side?

3. Is it a correct process?

4. If any better process, free to suggest.

Update : I Just wanna try it in Asp.net core

1. Want to save token in varaible at Controller like

   {
   
     if (!string.IsNullOrEmpty(Request.Form["access_token"]))
     {
       var token = Request.Form["access_token"];
   
       ViewBag.Message = token.ToString();
     }
     return View();
   }
   

View part :

@{
    ViewData["Title"] = "CustomeView";
}


<script>
  var message = "@ViewBag.Message";
  console.log(message);
</script>

<a href="@Url.Content("/")">Home</a>

After a click on Home link it will redirect to my angular2 index.html

2. Index.html - angular 2 , How to use message(Token Value) variable in angular 2 ?

Answer 1

Is it possible to set a value in a text field? (if so, how?)

Yes just concatenate token to input value.

app.post('/callback', (req, res)=> {
    var token = req.body.access_token
    res.cookie('access',token); //instead, i want to set in variable/text field
res.send('<input type=text name="access_token" value='+token+' hidden/>')
})

OR ES6 style:

 res.send(`<input type=text name="access_token" value="${token}" hidden/>`)

${expression}