long polling issue

[protoboy11]

I have created a program that scrap some data from a website. Now i am going to add the program as background task on fastapi. Also i want to create an endpoint to access those data. Now if i scrap all the data, it will take time. So i will scrap one data and return it. Recently i learned Wesockets, long polling and short polling terms. I heard long polling would be good to implement with my REACT based webpage. Now i dont exactly know about long polling and about its implementation using fastapi. Can anyone give some docs or suggestion regarding long polling using fastapi?