📱 Flutter
Intermediate
What is the dio package in Flutter?
Answer
Dio is a powerful HTTP client for Dart/Flutter that goes beyond the basic http package. It supports interceptors (for adding auth headers or logging to every request), request cancellation, FormData for file uploads, download progress tracking, and timeout configuration. Interceptors are particularly useful — you can automatically refresh tokens and retry requests transparently. It is the preferred choice for production apps that need fine-grained control over HTTP communication.