I send some data to a webservice, it returns some JSON as NSData. How to convert to Dict?(iOS 4.3)

Question

I send some credentials to a web-service.

I can get the responce as NSData or as an NSString.

Whats the simpleist way to convert the (NSData or NSString)JSON to a NSDictionary so I can process it?

Building for iOS4.3 Many Thanks, -Code

**First duplicate:** `NSData` to `NSString` => [Here](http://stackoverflow.com/questions/6411965/converting-nsdata-to-nsstring-in-objective-c). **Second duplicate:** "JSON" to `NSDictionary` => [Here](http://stackoverflow.com/questions/5038371/convert-json-feed-to-nsdictionary). — Rui Peres, Jul 05 '12 at 07:48

score 1 · Answer 1 · answered Jul 05 '12 at 07:51

1

From iOS 5.0 and on you can use NSJSONSerialization, docs here.

There is a good tutorial on how to use it, here.

answered Jul 05 '12 at 07:51

Fran Sevillano

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aks.knit1108 · Answer 2 · 2012-07-05T07:54:07.590

0

Use this :

NSString *urlString = [NSString stringWithFormat:kURLString,self.chapter,self.page];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString]];
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setHTTPBody:[urlString dataUsingEncoding:NSISOLatin1StringEncoding]];

NSData* responseData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:nil error:nil];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSISOLatin1StringEncoding];


NSDictionary* result = [(NSDictionary*)[responseString JSONValue] objectForKey:@"Result"];

edited Jul 05 '12 at 07:54

answered Jul 05 '12 at 07:48

aks.knit1108

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What lib is the method JSONValue from? – Jul 05 '12 at 08:01
You have to add JSON classes in your project and for this download it from gitHub and then #import "JSON.h" in your required class where you want to parse data. – aks.knit1108 Jul 05 '12 at 08:38

score 0 · Answer 3 · answered Jul 05 '12 at 08:12

0

I use SBJson

NSArray *arrObj = (NSArray*)[[JsonParser sharedJsonParser] getObjectsFromJsonString:responseString];

response string is a JSON string here

answered Jul 05 '12 at 08:12

Prabhat Kasera

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score 0 · Accepted Answer · answered Jul 05 '12 at 08:25

Download SBJsonParser Framework using the link, http://github.com/stig/json-framework/downloads and add required classes to your project (SBJsonParser.h).

Import SBJsonParser.h and use the following code,

    SBJsonParser *parser = [[SBJsonParser alloc] init];

     //dictionary with name,id
     NSDictionary *jsonObject = [parser objectWithString:jsonString error:NULL];  

     //name array                
      NSMutableArray *nameArray = [[NSMutableArray alloc]init];
   for (NSMutableDictionary *dic in jsonObject){

      [nameArray addObject:[dic valueForKey:@"name"]];
    }

I send some data to a webservice, it returns some JSON as NSData. How to convert to Dict?(iOS 4.3)

4 Answers4