DioLoggerPlus

DioLoggerPlus is a custom logging interceptor for the Dio HTTP client in Flutter. It helps developers easily debug HTTP requests and responses by printing clean, formatted logs in the console.

✨ Features

✅ Logs HTTP requests and responses
📦 Pretty-prints request/response bodies
🔸 Logs request headers
❌ Logs errors with status and response body
🧩 Optional compact or indented JSON
🛠 Fully customizable
🔐 Supports debug-only logging (enabled via kDebugMode)

📦 Installation

Add dio to your pubspec.yaml:

dependencies:
  dio: ^5.0.0

Then copy the DioLoggerPlus class into your project.

🚀 Usage

Add the interceptor to your Dio instance:

import 'package:dio/dio.dart';
import 'dio_logger_plus.dart'; // import your class

final dio = Dio();

dio.interceptors.add(DioLoggerPlus(
  request: true,
  requestHeader: true,
  requestBody: true,
  responseBody: true,
  error: true,
  compact: true,
  maxWidth: 90,
  isOnlyDebug: true,
));

⚙️ Configuration Options

Parameter	Type	Default	Description
`request`	`bool`	`true`	Logs HTTP method and URL
`requestHeader`	`bool`	`true`	Logs request headers
`requestBody`	`bool`	`true`	Logs request body
`responseBody`	`bool`	`true`	Logs response body
`error`	`bool`	`true`	Logs errors and error bodies
`compact`	`bool`	`true`	Minimized JSON indentation
`maxWidth`	`int`	`90`	(Reserved) Max width of the log lines
`isOnlyDebug`	`bool`	`true`	Enables logging only in debug mode

🧪 Example Output

┌─────── 📤 REQUEST [2025-06-11 14:32:10] ───────
│ ➡️ GET https://api.example.com/user/123
│ 🔸 Headers:
│ {
│   "Authorization": "Bearer token123"
│ }
│ 📦 Body:
│ {
│   "email": "test@example.com"
│ }
└───────────────────────────────────────────────

┌────── ✅ RESPONSE (200 OK) [+123ms] ──────────
│ URL: https://api.example.com/user/123
│ 📦 Body:
│ {
│   "id": 123,
│   "name": "John Doe"
│ }
└───────────────────────────────────────────────

🔐 Debug-Only Logging

By default, logs are shown only in debug mode (kDebugMode). To enable logs in release mode, set isOnlyDebug: false.