What is the difference between the http package and Dio in Flutter?
The http package is a simple, low-level HTTP client. Dio is a feature-rich client with interceptors, automa...
15 questions
http, dio, serialization, offline-first, WebSocket
The http package is a simple, low-level HTTP client. Dio is a feature-rich client with interceptors, automa...
Manual: implement fromJson/toJson by hand. json_serializable: code-generates toJson/fromJson via annotation...
Wrap API calls in try/catch, handle DioException types specifically (timeout, cancel, response), and return...
Use the connectivity_plus package to listen to ConnectivityResult changes (wifi, mobile, none). Note: a Con...
Retrofit (retrofit.dart) uses annotations and build_runner to generate type-safe Dio-based API clients from...
Use the web_socket_channel package to connect to a WebSocket server. It returns a WebSocketChannel with a s...
Certificate pinning rejects connections to servers whose SSL certificate doesn't match an expected fingerpr...
Add a custom Dio interceptor that catches network errors and retries the request up to N times with exponen...
Use the graphql_flutter or ferry package. graphql_flutter provides Query/Mutation/Subscription widgets. Fer...
Use Dio's FormData with MultipartFile for multipart uploads. Pass onSendProgress callback to track upload p...
Offset pagination: GET /items?page=2&limit=20. Cursor pagination: GET /items?after=cursor&limit=20. Keyset:...
Use compute(jsonDecode, rawString) to run JSON decoding in a background Isolate. compute() is a convenience...
Cache API responses in Hive (NoSQL, fast) or Drift (SQLite, relational). Store the data with a TTL timestam...
Include the API version in the base URL (https://api.example.com/v2) or as an Accept header (Accept: applic...
For Dio: use DioMixin + MockAdapter or inject a mock repository with mocktail. For http package: inject a m...