Issue with parsing JSON with AFNetworking? - objective-c

Question

Using AFNetworking unable to get the data from server.
here is my some of code,
NSString *serviceUrl = [NSString stringWithFormat:#"%#%#", BASE_URL,serviceName];
NSString *paramString = [NSString stringWithFormat:SERVICE_PARAMS, parametersString, DB_NAME];
NSData* data = [paramString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error;
NSDictionary *parametersDictionary = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSString *postLength = [NSString stringWithFormat:#"%ld", [data length]];
AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc]initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[manager.requestSerializer setTimeoutInterval:SERVICE_TIMEOUT];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];
[manager.requestSerializer setValue:postLength forHTTPHeaderField:#"Content-Length"];
[manager.requestSerializer setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:#"text/html"];
manager POST:serviceUrl parameters:parametersDictionary progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
if (self.delegate) {
[self.delegate onServiceSuccess:(NSDictionary *)responseObject];
}
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
if (self.delegate) {
[self.delegate onServiceFailed];
}
}];
i am getting response like this, <5b5b7b22 636f756e 74223a22 30227d5d 5d>
but my actual response working fine in Postman.
here is the postman Screen

Answer 1

You are using AFHTTPResponseSerializer (default response serializer), so responseObject is a NSData object (<5b5b7b22 636f756e 74223a22 30227d5d 5d> is the basic description of a NSData object).
You can replace AFHTTPResponseSerializer with the JSON correspondant one: AFJSONResponseSerializer, or do the serialization yourself:
NSArray *myJSONArray = [NSJSONSerialization JSONObjectWithData:responseObject options:0 error:nil];
Note that your JSON is an Array of Arrays of Dictionaries. So doing this: [self.delegate onServiceSuccess:(NSDictionary *)responseObject]; is just a cast, and a bad one.
If you really want just {"count":"96"}, do [self.delegate onServiceSuccess:myJSONObjectResponseArray[0][0]]; instead.