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Just learning/diving into a cshtml and razor application so please bear with.

We have an MVC razor front end UI application which calls a C# API back end application.

Currently the URL for the API is set in one of the js files, example apiCalls.js

This file is then added as a reference to the bottom of the page1.cshtml page with:

@Html.Script(Url.WidgetContent("~/Custom/Scripts/apiCalls.js"), "bottom")

This all works fine, and an AJAX call is made on the apiCalls.js page to retrieve data from the API.

However, I would like the API url to be set in the C# side, currently it is set in the apiCalls.js, and used when needed for AJAX

I have found a few similiar topics: https://www.codeproject.com/Questions/671106/How-can-i-declare-global-variable-to-use-all-mvc-v and the accepted answer here: Access Session variables in JavaScript

but it isnt working.

So in global.asx.cs I am adding:

private void PagePreRenderCompleteEvent(IPagePreRenderCompleteEvent evt)
{
HttpContext Context = HttpContext.Current;
if (Context != null && Context.Session != null)
{
   Session["apiURL"] = "https://www.123.com";
}
}

then at the top of apiCalls.js I am replacing the current

var api = 'www.api123.com';

with

console.log('api START');

var api = '@Session["apiURL"]';

console.log('apiEndPoint END ' + api);

but I can see from the comments in the console that:

apiEndPoint START
apiEndPoint END @Session["apiURL"]

obviously this is because its a string, but why is the accepted answer I mentioned like so:

enter image description here

what am I missing please? Thanks for any replies

Improve this question
4
  • use cookie, OR: you can do in configuration json set application variable. OR on application start Application["variablename"] = "hello"; and to read: HttpContext.Application["variablename"].ToString(); Commented Apr 13, 2024 at 3:19
  • i think this thread would be helpful stackoverflow.com/questions/49624242/… Commented Apr 13, 2024 at 3:21
  • Hi thanks for reply, yes setting or declaring the value in #C is ok but how do I retrieve it in the js file when I need it? Commented Apr 13, 2024 at 16:08
  • stackoverflow.com/questions/16474640/… Commented Apr 13, 2024 at 23:02
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