⚡ Response Caching

1. First Request: When you make a request with caching enabled, it fetches from the API and stores the response in memory
2. Cache Key: A unique key is generated based on the request URL and method
3. Subsequent Requests: Future requests with the same key return instantly from cache
4. TTL Expiration: After the specified duration (e.g., 5 minutes), the cache entry expires
5. Auto Refresh: Next request after expiration fetches fresh data and updates the cache

Configuration in Program.cs

// Add Memory Cache
builder.Services.AddMemoryCache();

// Add caching decorator to the service chain
builder.Services.AddScoped<IHttpRequestResultService>(provider =>
{
    IHttpRequestResultService service = provider.GetRequiredService<HttpRequestResultService>();
    
    // Wrap with caching decorator
    service = new HttpRequestResultServiceCache(
  provider.GetRequiredService<ILogger<HttpRequestResultServiceCache>>(),
        service,
     provider.GetRequiredService<IMemoryCache>()
    );
    
    return service;
});

Usage in Application Code

// Create request with caching enabled
var request = new HttpRequestResult<JokeResponse>
{
    RequestPath = "https://v2.jokeapi.dev/joke/Programming?safe-mode",
    RequestMethod = HttpMethod.Get,
CacheDurationMinutes = 5 // Cache for 5 minutes
};

var result = await _requestResultService.HttpSendRequestResultAsync(request);

// Check if response came from cache
var isCacheHit = result.RequestContext.TryGetValue("CacheHit", out var hit) && (bool)hit;

if (isCacheHit)
{
    Console.WriteLine($"✓ Response from cache! (Age: {result.RequestContext["CacheAge"]})");
}
else
{
    Console.WriteLine("↻ Fresh response from API, now cached");
}