Create json array in ios

Question

How can i create a json array in below format:

[{"id":"8"},{"id":"9"}]

Using Nsmutable dictionary we can create an above format,but key should be different.

Answer 1

    NSDictionary *dict1 = @{
                            @"id" : @"8"
                            };
    NSDictionary *dict2 = @{
                            @"id" : @"9"
                            };

    NSArray *array = @[dict1,dict2];
    NSData *jsonData=[NSJSONSerialization dataWithJSONObject:array options:NSJSONWritingPrettyPrinted error:nil];
    NSString* newStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

Output

[ { "id" : "8" }, { "id" : "9" } ]