LiteX.Cache.Memcached 2.1.0

LiteX Memcached Cache

LiteX.Cache.Memcached is a Memcached caching lib which is based on LiteX.Cache.Core and Memcached.

How to use ?

Install Nuget packages

Run the nuget command for installing the client as,

Install-Package LiteX.Cache.Core
Install-Package LiteX.Cache.Memcached

Configuration

AppSettings

{
  "RedisConfig": {
    "RedisCachingConnectionString": "127.0.0.1:6379,ssl=False",
    "PersistDataProtectionKeysToRedis": false
  }
}

Startup Configuration

public class Startup
{
    public IConfiguration configuration { get; }

    public Startup(IConfiguration configuration)
    {
        this.configuration = configuration;
    }

    public void ConfigureServices(IServiceCollection services)
    {
        // 1. Use default configuration from appsettings.json's 'MemcachedConfig'
        services.AddLiteXMemcachedCache();

        //OR
        // 2. Load configuration settings using options.
        services.AddLiteXMemcachedCache(option =>
        {
        });

        //OR
        // 3. Load configuration settings on your own.
        // (e.g. appsettings, database, hardcoded)
        var memcachedConfig = new MemcachedConfig();
        services.AddLiteXMemcachedCache(memcachedConfig);
    }

    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        app.UseLiteXMemcachedCache();
    }
}

Use in Controller or Business layer

The following code show how to use EasyCachingProvider in ASP.NET Core Web API.

public class CustomerController : Controller
{
    #region Fields

    private readonly ILiteXCacheManager _cacheManager;

    #endregion

    #region Ctor

    /// <summary>
    /// Ctor
    /// </summary>
    /// <param name="cacheManager"></param>
    public CustomerController(ILiteXCacheManager cacheManager)
    {
        _cacheManager = cacheManager;
    }

    #endregion

    #region Methods

    /// <summary>
    /// Get a cached item. If it's not in the cache yet, then load and cache it
    /// </summary>
    /// <returns></returns>
    public IActionResult CacheCustomers()
    {
        IList<Customer> customers;

        //cacheable key
        var key = "customers";

        customers = _cacheManager.Get(key, () =>
        {
            var result = new List<Customer>();

            result = GetCustomers().ToList();

            return result;
        });

        return Ok(customers);
    }

    /// <summary>
    /// Get a cached item. If it's not in the cache yet, then load and cache it
    /// </summary>
    /// <param name="cacheTime">Cache time in minutes (0 - do not cache)</param>
    /// <returns></returns>
    public IActionResult CacheCustomers(int cacheTime)
    {
        IList<Customer> customers;

        //cacheable key
        var cacheKey = "customers";

        customers = _cacheManager.Get(cacheKey, cacheTime, () =>
        {
            var result = new List<Customer>();

            result = GetCustomers().ToList();

            return result;
        });

        return Ok(customers);
    }

    /// <summary>
    /// Get a cached item. If it's not in the cache yet, then load and cache it manually
    /// </summary>
    /// <param name="customerId"></param>
    /// <returns></returns>
    public IActionResult CacheCustomer(int customerId)
    {
        Customer customer = null;
        var cacheKey = $"customer-{customerId}";

        customer = _cacheManager.Get<Customer>(cacheKey);

        if (customer == default(Customer))
        {
            //no value in the cache yet
            //let's load customer and cache the result
            customer = GetCustomerById(customerId);
            _cacheManager.Set(cacheKey, customer, 60);
        }
        return Ok(customer);
    }

    /// <summary>
    /// Remove cached item(s).
    /// </summary>
    /// <returns></returns>
    public IActionResult RemoveCachedCustomers()
    {
        //cacheable key
        var cacheKey = "customers";

        _cacheManager.Remove(cacheKey);

        // OR
        var cacheKeyPattern = "customers-";
        // remove by pattern
        _cacheManager.RemoveByPattern(cacheKeyPattern);

        return Ok();
    }

    #endregion

    #region Utilities

    private IList<Customer> GetCustomers()
    {
        IList<Customer> customers = new List<Customer>();

        customers.Add(new Customer() { Id = 1, Username = "ashish", Email = "toaashishpatel@outlook.com" });

        return customers;
    }

    private Customer GetCustomerById(int id)
    {
        Customer customer = null;

        customer = GetCustomers().ToList().FirstOrDefault(x => x.Id == id);

        return customer;
    }

    #endregion
}