👀 Views: 0 💬 Answers: 1 📅 Created: 2025-09-12

objective-c api error-handling migration networking Objective-C

I'm relatively new to this, so bear with me. I've been struggling with this for a few days now and could really use some help... Currently developing a migration plan for an older Objective-C system that heavily relies on a custom API to connect with a third-party service. The goal is to upgrade the API implementation while also enhancing error handling to better meet current performance standards. Given that this system processes a considerable volume of requests, it’s crucial to maintain a responsive and robust error management system. I initially tried implementing a simple error handling mechanism using `NSError` objects, but it quickly became cumbersome. Here’s a snippet from my initial approach: ```objective-c - (void)fetchDataFromAPI { NSURL *url = [NSURL URLWithString:@"https://api.example.com/data"]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) { if (error) { NSLog(@"Error fetching data: %@", error.localizedDescription); return; } // Process data }]; [task resume]; } ``` This basic structure works, but debugging has become increasingly challenging, especially when the API returns various error codes that don’t get adequately handled. To address this, I’ve considered implementing a centralized error handling strategy using a custom error class. My thought is to create a dedicated method that interprets different error codes and provides a user-friendly message: ```objective-c - (void)handleError:(NSError *)error { switch (error.code) { case NSURLErrorNotConnectedToInternet: NSLog(@"No internet connection. Please try again later."); break; case NSURLErrorTimedOut: NSLog(@"Request timed out. Please check your connection."); break; default: NSLog(@"An unexpected error occurred: %@", error.localizedDescription); break; } } ``` While the centralized approach makes sense, I’m unsure how to best integrate it with the existing API calls. Should I modify each API method to call `handleError:` directly, or is there a more elegant design pattern to follow that could streamline the error handling across the board? Additionally, I’m looking into using CocoaPods to incorporate more robust libraries for networking, such as AFNetworking or Alamofire (even though it’s Swift, I’m considering bridging). Any insights on best practices for error handling in this context would be greatly appreciated, especially regarding performance implications and maintaining existing system stability during the migration. Has anyone else tackled a similar migration while enhancing error handling? What strategies worked best for you? What's the best practice here? My team is using Objective-C for this web app. I'm working with Objective-C in a Docker container on Ubuntu 20.04. Is there a better approach?