ASP.NET WebAPI Ajax with Progress

Question

I have a very long webAPI request that basically does the following:

1. retrieves a list of item categories from the db 
2. for each category, retrieve all the items in the category

Now the whole process takes a very long time, and I do not want the user to wait for the completion of the whole process, if the category has finished loading, I want it to return to the client.

Does anyone know how I can do this? Send a request and receive server progress notifications whenever a part of the request is complete?

Answer 1

You can use SignalR to send data from the server to the client when it is available.

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Answer 2

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Answer 3

PushStreamContent : http://weblogs.asp.net/andresv/asynchronous-streaming-in-asp-net-webapi