how to create json in objective-c

Question

NSData* jsonDataToSendTheServer;

NSDictionary *setUser = [NSDictionary
            dictionaryWithObjectsAndKeys:[@\"u\" stringByAppendingString:my.id],@\"id\",
             


        

Answer 1

Try below

NSDictionary *o1 = [NSDictionary dictionaryWithObjectsAndKeys:
@"ABCD", @"key1",
@"EFG", @"key2",
nil];

NSDictionary *o2 = [NSDictionary dictionaryWithObjectsAndKeys:
@"XYZ", @"key1",
@"POI", @"key2",
nil];

NSArray *array = [NSArray arrayWithObjects:o1, o2, nil];

NSString *jsonString = [array JSONRepresentation];

// send jsonString to the server After executing the code above, jsonString contains:

[
    {
        "key1": "ABCD",
        "key2": "EFG"
    },
    {
        "key1": "XYZ",
        "key2": "POI"
    }
]