Xamarin Forms Caching Strategy with Monkey Cache🐒

 In Genel

Today, we will learn caching technology in Xamarin.Forms as Monkey Cache.
Sometimes we need to store data in the application that we develop. For example, HTTP requests, configurations, settings, databases etc.
I need to store HTTP requests for a while during work on a project. I found Xamarin monkey cache while I search about caching strategies in that way.

What is monkey cache?

Monkey cache is a simple way to store any type of data. It supports SQLite-net, LiteDB, and a simple File Store. Monkey Cache is built against .NET Standard 2.0 and that means it is not just using with the mobile applications; it can use in any .NET projects.

How to use?

First of all, let’ s install Monkey Cache in our project from NuGet packages. You can use any file storage type in your project.

I prefer FileStore for this project. I install MonkeyCache, MonkeyCache.FileStore

Data is stored in a “Barrel” or IBarrel. Don’t forget to give an application id on the barrel before storing data.

Barrel.ApplicationId = "your_unique_name_here";

If you want to do user-based cache, you can use some code like this:

Barrel.ApplicationId = "your-app-name" + UserId + DateTime.Now;

Caching a Web Request

Http request caching is very easy with Monkey Cache. We can set the expire time easily in this way:

Think like this scenario; I want to store the results of HTTP requests while if the user connected to the internet. I want to take these data from this cache if the user didn’t connect the internet and cached data didn’t expire. Now let’s take a look at the example:

public async Task<CurrencyModel> GetCurrencyAsync()
var url = "https://lookup.binlist.net/45717360";
var client = new HttpClient();
if (!CrossConnectivity.Current.IsConnected && !Barrel.Current.IsExpired(key: url))
return Barrel.Current.Get<CurrencyModel>(key: url);
CurrencyModel result = null;
var response = await client.GetAsync(url);
if (response.IsSuccessStatusCode)
result = JsonConvert.DeserializeObject<CurrencyModel>(response.Content.ReadAsStringAsync().Result);
Barrel.Current.Add(key: url, data: result, expireIn: TimeSpan.FromDays(1));
return result;
view raw Service.cs hosted with ❤ by GitHub

We have seen together how to use Monkey cache today. Easy, right? You can use it over any caching scenario. Follow sample project here.

Happy Coding 🙂

You can find Monkey Cache Github source here.

You can find my previous article on Xamarin here.

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