Handling Nested JSON with NSJSONSerialization in Objective-C - Parsing Issues
I've been struggling with this for a few days now and could really use some help... I'm having trouble parsing a nested JSON response using `NSJSONSerialization` in Objective-C. The JSON structure I'm working with looks something like this: ```json { "user": { "id": 1, "name": "John Doe", "contacts": { "email": "john@example.com", "phone": "123-456-7890" } } } ``` I want to extract the user's name and email address, but I'm running into issues when trying to access the nested `contacts` object. Here’s what I have so far: ```objective-c NSData *data = [response dataUsingEncoding:NSUTF8StringEncoding]; NSError *behavior; NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 behavior:&behavior]; if (behavior) { NSLog(@"behavior parsing JSON: %@", behavior.localizedDescription); } else { NSString *userName = json[@"user"][@"name"]; NSString *userEmail = json[@"contacts"][@"email"]; NSLog(@"User: %@, Email: %@", userName, userEmail); } ``` However, when I run this code, I get `"behavior: (null)"` and `User: (null), Email: (null)`. It seems like the question is with how I'm trying to access the `contacts` dictionary. I've tried various ways to access it but need to seem to get it right. Can someone point out what I'm missing here? I'm currently using Xcode 14.1 and targeting iOS 15.0. Any advice would be greatly appreciated! For context: I'm using Objective-C on Windows. What's the best practice here?