BrowserCacheExtensions

BrowserCacheExtensions is a collection of extensions designed to cache non-confidential data in the browser using popular libraries like Blazored LocalStorage. Future plans include extending support to Blazor.IndexedDB.

Installing

To install the package add the following line inside your csproj file with the latest version.

<PackageReference Include="BrowserCache.Extensions" Version="x.x.x" />

An alternative is to install via the .NET CLI with the following command:

dotnet add package BrowserCache.Extensions

Usage

LocalStorageAsyncExtensions

The LocalStorageAsyncExtensions class provides asynchronous methods for caching data. Here's how to use it:

using Blazored.LocalStorage;
using BrowserCache.Extensions.LocalStorage;
using System;
using System.Threading.Tasks;

public class Example
{
    private readonly ILocalStorageService _localStorageService;

    public Example(ILocalStorageService localStorageService)
    {
        _localStorageService = localStorageService;
    }

    public async Task UseCacheAsync()
    {
        string key = "cachedData";
        TimeSpan timeToLive = TimeSpan.FromMinutes(10);

        var data = await _localStorageService.GetOrCreateCacheAsync(
            key,
            timeToLive,
            async () => await FetchDataAsync()
        );

        // Use 'data' as needed
    }

    private async Task<MyDataType> FetchDataAsync()
    {
        // Fetch or generate data
        return await Task.FromResult(new MyDataType());
    }
}

LocalStorageSyncExtensions

The LocalStorageSyncExtensions class offers synchronous methods for caching data:

using Blazored.LocalStorage;
using BrowserCache.Extensions.LocalStorage;
using System;

public class Example
{
    private readonly ISyncLocalStorageService _localStorageService;

    public Example(ISyncLocalStorageService localStorageService)
    {
        _localStorageService = localStorageService;
    }

    public void UseCache()
    {
        string key = "cachedData";
        TimeSpan timeToLive = TimeSpan.FromMinutes(10);

        var data = _localStorageService.GetOrCreateCache(
            key,
            timeToLive,
            () => FetchData()
        );

        // Use 'data' as needed
    }

    private MyDataType FetchData()
    {
        // Fetch or generate data
        return new MyDataType();
    }
}

Note

If you prefer not to rely on this library, you can copy the extension methods directly into your project and modify them as needed to suit your requirements.

Disclaimer

Use only this library for caching non sensitive data. If you are working with highly private and confidential data , you should not be storing this data in your client's browser.

License

MIT License