Aftnetworking with Token to download image

Question

I’m testing Aftnetworking to download images from a backend, but I’m having errors downloading images.

I tested several implementations, with this implementation presents error of content not accepted.

Below is the last implementation I did of testing:

NSString* urlImagem = @"http://lojacliente.goldarkapi.com/pizzas/54bf3e3a657f6f2c04a81afd/imagem";

AFHTTPRequestOperationManager *operationManager = [AFHTTPRequestOperationManager manager];

operationManager.responseSerializer = [AFImageResponseSerializer serializer];

operationManager.responseSerializer = [AFJSONResponseSerializer serializer];
operationManager.requestSerializer = [AFJSONRequestSerializer serializer];


[operationManager.requestSerializer setValue:@"image/jpeg" forHTTPHeaderField:@"Content-Type"];
[operationManager.requestSerializer setValue:@"zRWGVZ0HEpSzsb1ZOYMYHCwL6q54qa2x3y3JlNmCN61d1SCmfRDfnbFHteu/R50N29bOQJv8IgG6aLD4y8dNWQ==" forHTTPHeaderField:@"X-Api-Token"];

[operationManager GET:urlImagem parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {

    NSLog(@"success");

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

    NSLog(@"failure. Error:%@",error);

}];

ERROR:

Gdrequestimageaftnetworking[1647:65915] Ailure. Error:Error Domain=com.alamofire.error.serialization.Response Code=-1016 "Request failed: Unacceptable content-type: image/jpeg" Userinfo=0x78604030 {com.alamofire.serialization.response.error.Response= { URL: http://lojacliente.goldarkapi.com/pizzas/54bf3e3a657f6f2c04a81afd/imagem } { status code: 200, headers { "Access-Control-Allow-Credentials" = "true, true"; "Access-Control-Allow-Headers" = "Content-Type, Content-Length, Depth, User-Agent, X-Requested-With, X-Requested-By, If-Modified-Since, X-Access-Token, X-Fileencoding, Cache-Control"; "Access-Control-Allow-Methods" = "GET,PUT,POST,DELETE, OPTIONS, HEAD"; "Access-Control-Allow-Origin" = "*"; Connection = "Keep-Alive"; "Content-Length" = 25553; "Content-Type" = "image/jpeg"; Date = "Fri, 30 Jan 2015 16:49:36 GMT"; Etag = "5c08b1f8fc6e9943027d4062badbd5d60aca31f0 ""; Server = "Nginx/1.4.1 (Ubuntu)"; } }, Nserrorfailingurlkey=http://lojacliente.goldarkapi.com/pizzas/54bf3e3a657f6f2c04a81afd/imagem, Nslocalizeddescription=Request failed: Unacceptable content-type: image/jpeg, com.alamofire.serialization.response.error.data=

How could you correctly set the request header setting with Token?

Answer 1

The problem is that you are sending the headers HTTP via the GET parameters.

To set these headers you must use the method setValue:forHTTPHeaderField: of AFHTTPRequestSerializer

You can do it like this:

[operationManager.requestSerializer setValue:@"image/jpg" forHTTPHeaderField:@"Content-Type"];
[operationManager.requestSerializer setValue:@"_TOKEN_" forHTTPHeaderField:@"X-Api-Token"];

Answer 2

I was able to download using the following code:

     AFHTTPRequestOperationManager *operationManager = [AFHTTPRequestOperationManager manager];

        operationManager.responseSerializer = [AFImageResponseSerializer serializer];

        [operationManager.requestSerializer setValue:@"TOKEN" forHTTPHeaderField:@"X-Api-Token"];

        [operationManager GET:urlImagem parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {

// responseObject será um valor do tipo UIImage, dispensando qualquer conversão de data 
// para image. Podendo ser usado diretamente ou inserido em um UIImage.

            NSLog(@"success");


        } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

            NSLog(@"failure. Error:%@",error);

        }];