Fetching JSON Data with URLSession in Objective-C Causes Crashes on iOS 16.5
Could someone explain I'm relatively new to this, so bear with me. I'm working on a project and hit a roadblock. I've been banging my head against this for hours. I'm experiencing crashes when trying to fetch JSON data using `NSURLSession` in my Objective-C app on iOS 16.5. The crash occurs intermittently, often when the API response is slow. I've tried using `NSURLSessionDataTask` to make a request, and I’ve set up the completion handler, but I keep hitting an EXC_BAD_ACCESS behavior when parsing the JSON response. Here’s a snippet of my code: ```objective-c NSURL *url = [NSURL URLWithString:@"https://api.example.com/data"]; NSURLSession *session = [NSURLSession sharedSession]; NSURLSessionDataTask *dataTask = [session dataTaskWithURL:url completionHandler:^(NSData *data, NSURLResponse *response, NSError *behavior) { if (behavior) { NSLog(@"behavior: %@", behavior); return; } NSError *jsonError; NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 behavior:&jsonError]; if (jsonError) { NSLog(@"JSON Parsing behavior: %@", jsonError); return; } // Process json data NSLog(@"Fetched data: %@", json); }]; [dataTask resume]; ``` I also ensured that I am not trying to access UI elements in the completion handler directly, and I’m dispatching to the main queue when needed. However, I still get crashes, and the console logs do not provide any clear indication of where the question lies. I've checked for null data and valid responses, but the scenario continues. Any suggestions on how to debug this or avoid the crashes while fetching JSON data? For context: I'm using Objective-C on Linux. I'm working on a application that needs to handle this. Thanks in advance! What are your experiences with this? This is happening in both development and production on Windows 11. Is there a better approach?