http_client_helper

pub package

A Flutter plugin for http request with cancel and retry fuctions.

Usage

To use this plugin, add http_client_helper as a dependency in your pubspec.yaml file.

Example

  cancellationToken = new CancellationToken();
    try {
      await HttpClientHelper.get(url,
              cancelToken: cancellationToken,
              millisecondsDelay: 1000,
              retries: 10)
          .then((response) {
        setState(() {
          msg = response.body;
        });
      });
    } on OperationCanceledError catch (e) {
      setState(() {
        msg = "cancel";
      });
    } catch (e) {

    }

If you need other method of http, you can do it with RetryHelper and CancellationToken as you wish. as follow

static Future<Response> get(url,
      {Map<String, String> headers,
      CancellationToken cancelToken,
      int millisecondsDelay = 100,
      int retries = 3}) async {
    cancelToken?.throwIfCancellationRequested();
    return await RetryHelper.tryRun<Response>(() {
      return CancellationTokenSource.register(
          cancelToken, _httpClient.get(url, headers: headers));
    },
        cancelToken: cancelToken,
        millisecondsDelay: millisecondsDelay,
        retries: retries);
  }

Please see the example app of this plugin for a full example.

Libraries

http_client_helper

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]