Hands-On Mobile Development with .NET Core

Implement retrieval actions

Considering the auctions dataset, since we have created our MVC application, we should include two GET methods in our controller, one for retrieving the complete collection of auctions, and one that will retrieve a specific auction.

Let's see how we can do this:

1. We can simply initialize our repository and return the results for the first GET method:

[HttpGet]public async Task<IEnumerable<Auction>> Get(){    var result = Enumerable.Empty<Auction>();    try    {        result = await _cosmosCollection.GetItemsAsync(item =>         true);    }    catch (Exception ex)    {        // Log the error or throw depending on the requirements    }    return result;}

Notice that the predicate we are using here is targeting the complete set of auctions. We can expand ...