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distributedcache.azuretablestorage's Introduction

logo DistributedCache.AzureTableStorage

  • Based on oceanweb/azuretablestoragecache but with lower dependencies.
  • Extra added logic to use strongly typed objects with IDistributedCache instead of byte arrays.
  • Multiple versions are available, see table below for details.

Info

Version Dependencies Information
V1 Windows.Azure.Storage This dependency is declared deprecated by Microsoft.
V2 Microsoft.Azure.Cosmos.Table
V2-preview Microsoft.Azure.Cosmos.Table - Preview This is still a preview version.
V3 Azure.Data.Tables

Code example

Configure in code (option 1)

c# code:

// Configure in code
services.Configure<AzureTableStorageCacheOptions>(options =>
{
    options.TableName = "CacheTest";
    options.PartitionKey = "ConsoleApp";
    options.ConnectionString = "UseDevelopmentStorage=true;";
    options.ExpiredItemsDeletionInterval = TimeSpan.FromHours(24);
});

Notes

  • If the TableName does not exists, it's created. If you want to disable this behaviour, set the options.CreateTableIfNotExists to false.
  • When an item is retrieved or added to to the cache, a periodic interval scan can be done to find and delete expired items in the cache. Default this is set to null, which means that this functionality is disabled. If you want to change this, set the options.ExpiredItemsDeletionInterval to a different value, like TimeSpan.FromMinutes(30).

Configure via appsettings.json (option 2)

appsettings.json:

"AzureTableStorageCacheOptions": {
  "ConnectionString": "UseDevelopmentStorage=true;",
  "TableName": "CacheTest",
  "PartitionKey": "ConsoleApp"
}

c# code:

// Configure via app.setttings
services.Configure<AzureTableStorageCacheOptions>(Configuration.GetSection("AzureTableStorageCacheOptions"));

Add DistributedAzureTableStorageCache to services

services.AddDistributedAzureTableStorageCache();

Usage

IDistributedCache cache = ... // injected via DI

var test = new TestModel
{
    Id = 1,
    Name = "Test 1"
};

// Set an item in the cache using an expiration from 30 seconds
var cacheOptions = new DistributedCacheEntryOptions { AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(30) };
await cache.SetAsync("t1", test, cacheOptions);

// Retrieve the item from the cache
var t2 = await cache.GetAsync<TestModel>("t1");
logger.LogInformation("t2 : {TestModel}", JsonConvert.SerializeObject(t2));

distributedcache.azuretablestorage's People

Contributors

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