AFNetworking and jSON

Question

I am getting following the json response from a web-service api. I want to extract product data from the json. I also want to implement this using AFNetworking.

 {"products": [
    {
      "product_id": "1170",
      "name": "zzzz®",
      "sort_order": 0,
      "brand": "zzzas",
      "product_category_id": "1090",
      "location_ids": [
        "1078"
      ],
      "icon_url": "http://zzzzz.com/media/2502/zzzz.png",
      "icon_date": "Wed, 07 Nov 2012 14:03:47 GMT",
      "thumbnail_url": "http://zzzz.com/media/2591/zzdfs.png",
      "thumbnail_date": "Wed, 07 Nov 2012 14:04:02 GMT"
    },
    {
      "product_id": "1126",
      "name": "ddddd®",
      "sort_order": 1,
      "brand": "dddsas",
      "product_category_id": "1110",
      "location_ids": [
        "1095"
      ],
      "icon_url": "http://zzzzz.com/media/2507/ddddd.png",
      "icon_date": "Wed, 07 Nov 2012 14:03:48 GMT",
      "thumbnail_url": "http://zzzzz.com/media/2596/sssds.png",
      "thumbnail_date": "Wed, 07 Nov 2012 14:04:05 GMT"
    }
]}

Can anyone suggest a way to do this.me how the things will be done.

Solution 1

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"link"]];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request 
    success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
        NSDictionary *jsonDict = (NSDictionary *) JSON;
        NSArray *products = [jsonDict objectForKey:@"products"];
        [products enumerateObjectsUsingBlock:^(id obj,NSUInteger idx, BOOL *stop){
            NSString *productIconUrl = [obj objectForKey:@"icon_url"];
        }];

    } failure:^(NSURLRequest *request, NSHTTPURLResponse *response,
        NSError *error, id JSON) {
            NSLog(@"Request Failure Because %@",[error userInfo]); 
    }
];

[operation start];

Try this.

Update 1: You can try this https://github.com/SSamanta/SSRestClient

Update 2: https://github.com/SSamanta/SSHTTPClient (Using Swift)

Available Pod : pod 'SSHTTPClient', '~>1.2.2'

Solution 2

if you're using AFNetworking 3.0, AFJSONRequestOperation doesn't exist anymore, you have to use AFHTTPSessionManager :

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
[manager GET:@"http://example.com/resources.json" parameters:nil progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(NSURLSessionTask *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

Solution 3

To parse JSON with AFNetworking, just create a subclass and add the following during initialization.

[self registerHTTPOperationClass:[AFJSONRequestOperation class]];

Then calling a method like GET:parameters:completion: will call the completion block with an NSDictionary as the response parameter (assuming the JSON is valid).

To download the images, assuming you want to display them, check out UIImageView+AFNetworking.

Solution 4

If you are just starting, I'd recommend using RestKit for this task (it makes use of AFNetworking). See an example here.

Solution 5

Please check the example of AFNetworking https://github.com/AFNetworking/AFNetworking/tree/master/Example

For image downloading, EGOCache & EGOImageLoading may be a good choice https://github.com/enormego/EGOImageLoading

View more solutions

Comments

[fizampou]

i also want to download some really large pdf files and some videos. there i think i had a problem with those

[fizampou]

thanks a lot that worked for parsing the file also check this out if you have some spare time stackoverflow.com/questions/13478437/…

[fizampou]

i think rest kit is too complex for my application

[Susim Samanta]

@Filip check the answer in that link

[jianpx]

only registerhttpoperationclass is not enough to get the json response data. The fully steps are : [self registerHTTPOperationClass:[AFJSONRequestOperation class]]; and [self setDefaultHeader:@"Accept" value:@"application/json"] . refers to here

[tybro0103]

RestKit does seem rather bloated now.

[Michael Mior]

@jianpx This depends on the server you're talking to and whether or not you want JSON responses for all your requests. If you do, then definitely set the header.