How to return 202 status code async from C#

Question

User-1188570427 posted

I need to run an async status call to start exeuction, but then return http code 202 so the scheduled task knows that it is working in the background.

How would I do that?

This post is what is generating the question:

https://feedback.azure.com/forums/230896-scheduler/suggestions/6986985-customizable-timeout-to-a-scheduled-job-through-az

Answer 1

User-1174608757 posted

Hi  tvb2727,

According to your description, to accomplish your requirement,you could firstly send the request for checking the status of  async task , then if it is in processing , you could change the status code as 202 so that scheduled task would know that is working in background.

Here is the demo , I hope it could help you.

 

 public partial class excel : System.Web.UI.Page
    {
        private Task<int> DoWorkAsync() // No async because the method does not need await
        {
            return Task.Run(() =>
            {
                return 1 + 2;
            });
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            

            Window_PreviewKeyDown();

        }
      


        private void Window_PreviewKeyDown()
        {
            
            //check goes here - abort if running 
            if (DoWorkAsync() != null && !DoWorkAsync().IsCompleted)
            {
                // Your code here -- change the status as 202
                Response.StatusCode = 202;
            }
        }
    }

You could see :

Best Regards

Wei

Answer 2

User-1188570427 posted

Wei Zhang

Hi  tvb2727,

According to your description, to accomplish your requirement,you could firstly send the request for checking the status of  async task , then if it is in processing , you could change the status code as 202 so that scheduled task would know that is working in background.

Here is the demo , I hope it could help you.

 

 public partial class excel : System.Web.UI.Page
    {
        private Task<int> DoWorkAsync() // No async because the method does not need await
        {
            return Task.Run(() =>
            {
                return 1 + 2;
            });
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            

            Window_PreviewKeyDown();

        }
      


        private void Window_PreviewKeyDown()
        {
            
            //check goes here - abort if running 
            if (DoWorkAsync() != null && !DoWorkAsync().IsCompleted)
            {
                // Your code here -- change the status as 202
                Response.StatusCode = 202;
            }
        }
    }

You could see :

Best Regards

Wei

I did what you said and I get this error when I call the page:

This site can’t be reached

http’s server IP address could not be found.

• Try running Windows Network Diagnostics.

Answer 3

User-1188570427 posted

This site can’t be reached

http’s server IP address could not be found.

• Try running Windows Network Diagnostics.

This was an issue with the URL I was copying into the web address.

Still testing now.

Answer 4

User-1188570427 posted

Wei Zhang

Hi  tvb2727,

According to your description, to accomplish your requirement,you could firstly send the request for checking the status of  async task , then if it is in processing , you could change the status code as 202 so that scheduled task would know that is working in background.

Here is the demo , I hope it could help you.

 

 public partial class excel : System.Web.UI.Page
    {
        private Task<int> DoWorkAsync() // No async because the method does not need await
        {
            return Task.Run(() =>
            {
                return 1 + 2;
            });
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            

            Window_PreviewKeyDown();

        }
      


        private void Window_PreviewKeyDown()
        {
            
            //check goes here - abort if running 
            if (DoWorkAsync() != null && !DoWorkAsync().IsCompleted)
            {
                // Your code here -- change the status as 202
                Response.StatusCode = 202;
            }
        }
    }

You could see :

Best Regards

Wei

I did what you said and I get this error when I call the page:

This site can’t be reached

http’s server IP address could not be found.

• Try running Windows Network Diagnostics.

THIS FIXED MY ISSUE!

I can now run a long running task via schedule job in Azure!