Objective-C

Pretty Print JSON (Formatter, Beautifier)

See more JSON Examples

Demonstrates how to emit JSON in a pretty, human-readable format with indenting of nested arrays and objects. Objective-C

#import <CkoJsonObject.h>
#import <NSString.h>

BOOL success = NO;

CkoJsonObject *json = [[CkoJsonObject alloc] init];

NSString *jsonStr = @"{\"name\": \"donut\",\"image\":{\"fname\": \"donut.jpg\",\"w\": 200,\"h\": 200},\"thumbnail\":{\"fname\": \"donutThumb.jpg\",\"w\": 32,\"h\": 32}}";

success = [json Load: jsonStr];
if (success != YES) {
    NSLog(@"%@",json.LastErrorText);
    return;
}

// To pretty-print, set the EmitCompact property equal to NO
json.EmitCompact = NO;

// If bare-LF line endings are desired, turn off EmitCrLf
// Otherwise CRLF line endings are emitted.
json.EmitCrLf = NO;

// Emit the formatted JSON:
NSLog(@"%@",[json Emit]);