Flutter › Flutter DevTools & Debugging
How can you use Flutter DevTools' dedicated network view together with proper logging to effectively debug a genuinely complex issue involving several separate related API calls happening across your application?
AdvancedAnswer
The DevTools network view displays every single outgoing network request your app actually makes, including its exact specific headers, request body, and the resulting actual response, letting you verify a request is genuinely being sent with exactly the correct expected parameters and that the response is actually being properly parsed and correctly interpreted as intended, and combining this network view together with structured, thoughtfully placed logging throughout your own application code, clearly tagging each individual log message with a relevant specific request identifier, helps you effectively trace the exact complete flow of a genuinely complex operation involving several separate related API calls, across what might otherwise be several entirely different files and layers throughout your codebase.
final requestId = uuid.v4();
log('[$requestId] Fetching orders for user $userId');
final response = await dio.get('/orders', options: Options(headers: {'X-Request-ID': requestId}));Real-world example A developer debugging a confusing checkout issue involving three genuinely separate chained API calls tags every one of those individual related log messages with a shared, common request identifier, making it noticeably easier to trace the exact complete, full sequence of events across the entire process using the DevTools network view alongside their own structured application logs.