AFNetworking - do not cache response

Question

I\'m using this code to pull a simple JSON feed from a server:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    manager.         


        

Answer 1

With AFNetworking 3:

NSURLSessionConfiguration *sessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];
sessionConfiguration.requestCachePolicy = NSURLRequestReloadIgnoringLocalCacheData;

AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL
                                                         sessionConfiguration:sessionConfiguration];

Answer 2

Just do:

manager.requestSerializer.cachePolicy = NSURLRequestCachePolicyReturnCacheDataElseLoad

Answer 3

What you are experiencing is the effect of the URL cache (see NSURLCache).

The caching behavior of the request can be defined by setting a "Cache Policy" for the NSMutableURLRequest object, e.g.:

NSMutableURLRequest* request = ...;
[request setCachePolicy: myCachePolicy];

The default caching behavior (NSURLRequestUseProtocolCachePolicy) is appropriate for the current protocol, which is HTTP. And for the HTTP protocol, a GET requests will be cached by default!

And, AFNetworking does not change the default behavior of the request!

Now, you could set another cache policy, for example:

NSURLRequestReloadIgnoringLocalCacheData

Specifies that the data for the URL load should be loaded from the originating source. No existing cache data should be used to satisfy a URL load request.

This is likely the desired behavior you want to achieve:

[request setCachePolicy: NSURLRequestReloadIgnoringLocalCacheData];

The problem here is, that the super "convenient" API does not provide a way to configure the URL cache behavior of the request. You cannot access the used request at all.

Thus, I would suggest to use a lower level API where you have control about the created NSMutableURLRequest object, and set the cache policy accordingly.

Answer 4

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager.requestSerializer setValue:@"no-store" forHTTPHeaderField:@"Cache-Control"];
[manager.requestSerializer setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];

Adding the Cache-Control:no-store header to the request, assuming your server is implemented correctly, will return a response with the same header thus disabling NSURLCache disk cache for any request that contains this header.

Answer 5

For Swift poeple

let manager = AFHTTPSessionManager()
manager.requestSerializer.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringCacheData

Answer 6

try to add some rubbish at the end of your URL (for example, timestamp)

kDataUrl = [NSString stringWithFormat:@"%@?%f", kDataUrl, [NSDate timeIntervalSinceReferenceDate]];

In this case, you would request fresh data every time. That works for me))