Convert text into json in Objective c - ios

Question

I have a string that I want to convert it into JSON in iOS but it is returning nil when I'm parsing it using jsonkit. My string format is as follows.
[
{ index:0, title:ARPPU },
{ index:1, title:ARPU },
{ index:2, title:Conversion },
{ index:3, title:DAU },
{ index:4, title:DAU },
]
Any one have idea how I can convert into a JSON object? Any help is appreciated.

Answer 1

The problem I would see here is your JSON string is invalid. Validate your JSON here
Try this
NSString *strJson = #"[{\"index\": \"0\",\"title\": \"ARPPU\"}]";
id jsonObj = [NSJSONSerialization JSONObjectWithData:[strJson dataUsingEncoding:NSUTF8StringEncoding]
options:NSJSONReadingMutableContainers error:nil];
This worked for me.

Answer 2

Convert your string to NSData with NSUTF8Encoding and do a JSONSerialisation to make it JSON
// Converting Your String to NSData
NSString *myString=#"[
{ index:0, title:ARPPU },
{ index:1, title:ARPU },
{ index:2, title:Conversion },
{ index:3, title:DAU },
{ index:4, title:DAU },
]";
// Converts the string to Data
NSData* data = [myString dataUsingEncoding:NSUTF8StringEncoding];
// Does JSONSerialisation and convert the data into JSON
NSDictionary*dict=[NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
// Prints here the JSON
NSLog(#"Dict value==%#",dict);

Answer 3

First fix the JSON string, see Introducing JSON and W3Schools.
Then it is a JSONstring representation.
Convert to NSData and use JSONObjectWithData:options:error:
NSString *JSONStringRepresentation= #"["
#"{ \"index\":0, \"title\":\"ARPPU\" },"
#"{ \"index\":1, \"title\":\"ARPU\" },"
#"{ \"index\":2, \"title\":\"Conversion\" },"
#"{ \"index\":3, \"title\":\"DAU\" },"
#"{ \"index\":4, \"title\":\"DAU\" },"
#"]";
NSData *JSONAsData = [JSONStringRepresentation dataUsingEncoding:NSUTF8StringEncoding];
NSError *error;
NSArray *JSONAsArrayObject = [NSJSONSerialization JSONObjectWithData:JSONAsData options:0 error:&error];
NSLog(#"JSONAsArrayObject: %#", JSONAsArrayObject);
NSLog output:
JSONAsArrayObject: (
{
index = 0;
title = ARPPU;
},
{
index = 1;
title = ARPU;
},
{
index = 2;
title = Conversion;
},
{
index = 3;
title = DAU;
},
{
index = 4;
title = DAU;
} )