How to parse such a json array?

Question

Im having hard time while trying to parse the following json array. How to parse it. The other answers in web doesn't seem to solve my problem.

{
  "status": 1,
  "value": {
    "details": [
      {
        "shipment_ref_no": "32",
        "point_of_contact": {
          "empid": ""
        },
        "products": {
          "0": " Pizza"
        },"status": "2"
      },
      {
        "shipment_ref_no": "VAPL/EXP/46/14-15",
        "point_of_contact": {
          "empid": "60162000009888"
        },
        "products": {
          "0": "MAIZE/CORN STARCH"
        },
        "status": "5"
      }
    ]
  }
}

I have to access the values of each of those keys.

Following is my code

NSString* pendingResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

NSData *jsonData = [pendingResponse dataUsingEncoding:NSUTF8StringEncoding];

NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSArray *argsArray = [[NSArray alloc] initWithArray:[jsonDic objectForKey:@"details"]];
NSDictionary *argsDict = [[NSDictionary alloc] initWithDictionary:[argsArray objectAtIndex:0]];
NSLog(@"keys = %@", jsonDic[@"values"]);

Why not use a third party library/pod to help you out with the parsing? — footyapps27, Feb 16 '16 at 10:06
Possible duplicate of [How do I parse JSON with Objective-C?](http://stackoverflow.com/questions/5547311/how-do-i-parse-json-with-objective-c) — Black Magic, Feb 16 '16 at 10:41

Shehzad Ali · Answer 1 · 2016-02-16T10:18:17.847

This is how you can parse your whole dictionary:

NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];

    NSArray *details = [[dataDictionary objectForKey:@"value"] objectForKey:@"details"];

    for (NSDictionary *dic in details) {
        NSString *shipmentRefNo = dic[@"shipment_ref_no"];
        NSDictionary *pointOfContact = dic[@"point_of_contact"];
        NSString *empId = pointOfContact[@"empid"];

        NSDictionary *products = dic[@"products"];
        NSString *zero = products[@"0"];
        NSString *status = dic[@"status"];

    }

Jonas · Answer 2 · 2016-02-16T10:02:07.033

1

EDIT: Following answer is in javascript!

You can parse your json data with:

var array = JSON.parse(data);

and then you can get everything like this:

var refno = array["value"]["details"][0]["shipment_ref_no"];

edited Feb 16 '16 at 10:02

answered Feb 16 '16 at 09:59

Jonas

2,139
17
38

`value` is not an array in the example given. – Avi Feb 16 '16 at 10:01
yes, thanks. But it thought he wanted to know how to do it in javascript so my answer is wrong anyways – Jonas Feb 16 '16 at 10:02

score 1 · Accepted Answer · edited May 23 '17 at 11:45

NSString *pendingResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];    
NSData *jsonData = [pendingResponse dataUsingEncoding:NSUTF8StringEncoding];    
NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSArray *argsArray = [[NSArray alloc] initWithArray:[jsonDic objectForKey:@"details"]];

//argsArray holds objects in form of NSDictionary.
for(NSDictionary *response in argsArray) {
   //String object
    NSLog(@"%@", [response valueForKey:@"shipment_ref_no"]);
   //Dictionary object
    NSLog(@"%@", [[response objectForKey:@"point_of_contact"] valueForKey:@"empid"]);
   //String object
    NSLog(@"%@", [response valueForKey:@"status"]);
   //Dictionary object
    NSLog(@"%@", [[response objectForKey:@"products"] valueForKey:@"0"]);
}

I believe you should surely ask your server developer to update the response format.

Also, you can always use Model classes to parse your data. Please check this, How to convert NSDictionary to custom object.

And yes, I'm using this site to check my json response.

score 1 · Answer 4 · answered Feb 16 '16 at 10:16

you can parse like ...

NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSDictionary *dictValue = [[NSDictionary alloc] initWithDictionary:[jsonDic objectForKey:@"value"]];

NSArray *arrDetails = [[NSArray alloc] initWithArray:[dictValue objectForKey:@"details"]];

for (int i=0; i<arrDetails.count; i++) 
{
    NSDictionary *dictDetails=[arrDetails objectAtIndex:i];
    NSDictionary *dictContact = [[NSDictionary alloc] initWithDictionary:[dictDetails objectForKey:@"point_of_contact"]];
    NSDictionary *dictProduct = [[NSDictionary alloc] initWithDictionary:[dictDetails objectForKey:@"products"]];
}

score 0 · Answer 5 · answered Feb 16 '16 at 10:03

0

NSDictionary *response = //Your json
NSArray *details = response[@"value"][@"details"]

etc. Pretty easy

answered Feb 16 '16 at 10:03

Artem Z.

1,243
2
14
36

score 0 · Answer 6 · answered Feb 16 '16 at 10:06

Update your code as follows. You are trying to read the details array from the top level whereas in your data its inside the value key. So you should read the value dict and within that read the details array.

NSString* pendingResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSData *jsonData = [pendingResponse dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSDictionary *valueDict = [jsonDic objectForKey:@"value"];
NSArray *argsArray = [[NSArray alloc] initWithArray:[valueDict objectForKey:@"details"]];
NSDictionary *argsDict = [[NSDictionary alloc] initWithDictionary:[argsArray objectAtIndex:0]];
NSLog(@"keys = %@", jsonDic[@"values"]);

score 0 · Answer 7 · answered Feb 16 '16 at 10:06

0

I think your problem is that you have:

NSLog(@"keys = %@", jsonDic[@"values"]);

But it should be:

NSLog(@"keys = %@", jsonDic[@"value"]);

answered Feb 16 '16 at 10:06

Jonas

2,139
17
38

score 0 · Answer 8 · answered Feb 16 '16 at 10:25

Below is code for parsing JSON array. i have used to parse JSON array from file but you can also do this using response link also.I have provided code for both and are below.

// using file
NSString *str = [[NSBundle mainBundle] pathForResource:@"test" ofType:@"json"];
NSData *data = [[NSData alloc]initWithContentsOfFile:str];
NSMutableDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSMutableDictionary *dictValues = [[NSMutableDictionary alloc]initWithDictionary:[dict valueForKey:@"value"]];
NSMutableArray *array = [[NSMutableArray alloc]initWithArray:[dictValues valueForKey:@"details"] copyItems:YES];

NSLog(@"Array Details :- %@",array);

// using url
NSURL *url = [NSURL URLWithString:@"www.xyz.com"]; // your url
NSData *data = [[NSData alloc]initWithContentsOfURL:url];
NSMutableDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSMutableDictionary *dictValues = [[NSMutableDictionary alloc]initWithDictionary:[dict valueForKey:@"value"]];
NSMutableArray *array = [[NSMutableArray alloc]initWithArray:[dictValues valueForKey:@"details"] copyItems:YES];

NSLog(@"Array Details :- %@",array);

How to parse such a json array?

8 Answers8