User Profile Caching Sample

Lets assume we have a profile page in our site that is generated using several queries. We might have a model for this page e.g. UserProfile class that contains all profile data for a user, and a GetProfile method that produces this for a particular user id.

public class UserProfile
{
    public string Name { get; set; }
    public List<CachedFriend> Friends { get; set; }
    public List<CachedAlbum> Albums { get; set; }
    ...
}
public UserProfile GetProfile(int userID)
{
    using (var connection = new SqlConnection("..."))
    {
        // load profile by userID from DB
    }
}

By making use of LocalCache.Get method, we could cache this information for one hour easily and avoid DB calls every time this information is needed.

public UserProfile GetProfile(int userID)
{
    return LocalCache.Get<UserProfile>(
        cacheKey: "UserProfile:" + userID,
        expiration: TimeSpan.FromHours(1),
        loader: delegate {
            using (var connection = new SqlConnection("..."))
            {
                // load profile by userID from DB
            }
        }
    );
}

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