How to show determinate progress bar with progress 0 to 100 when making rest api call in Blazor Webassembly

I am trying to find a way to show the progress bar in my blazor webassembly web app which needs to show progress from 0 to 100 as the API is call is happening and completed. I have seen couple of examples but it include external await Task.Delay(100) number. Any pointers will be helpful.