ilkersevim_retry 0.1.3

Add HTTP-client-neutral retries with backoff, jitter, cancellation, and injectable delays for deterministic Dart tests.

ilkersevim_retry

Retry policies with backoff, jitter, and cancel tokens. Pure Dart; injectable RetryDelay for testable waits.

Why use this package?

• Apply the same retry policy to HTTP, storage, or other async work without coupling business logic to one client library.
• Control attempt limits, fixed/linear/exponential backoff, jitter, and retry filtering in one place.
• Cancel pending retries and inject instant or virtual delays for fast, deterministic tests.

This package's CancelToken is not package:dio's CancelToken.

License: Apache-2.0. Issues: github.com/redjadet/ilkersevim_retry/issues.

Installation

dependencies:
  ilkersevim_retry: ^0.1.2

Requires Dart >=3.12.0.

Usage

import 'package:ilkersevim_retry/ilkersevim_retry.dart';

Future<void> main() async {
  final CancelToken cancelToken = CancelToken();
  const RetryPolicy policy = RetryPolicy(maxAttempts: 3);

  // Immediate delay for demos/tests (no wall-clock wait).
  Future<void> immediateDelay(Duration _) async {}

  final int value = await policy.executeWithRetry<int>(
    action: () async => 42,
    cancelToken: cancelToken,
    delay: immediateDelay,
  );

  print(value); // 42

  // Cancel in-flight retries from elsewhere:
  // cancelToken.cancel();
}

API

• RetryPolicy / RetryStrategy — exponential, linear, or fixed backoff
• RetryDelay — injectable wait (Future.delayed by default)
• CancelToken / CancellationException — cooperative cancel (not Dio)
• RetryPolicy.calculateDelay — shared delay math
• Presets: RetryPolicy.transientErrors, RetryPolicy.networkErrors