flutter_fetch_widget

Make simple http requests with a Flutter widget.

Features

  • Uses package http for requests
  • Allows to transform response to a data model
  • supports GET/POST methods

Getting started

Here is a quick look at using the fetch widget:

// import 'dart:convert' as convert;
// import 'package:http/http.dart' as http;

FetchWidget<Post>(
  url: "https://jsonplaceholder.typicode.com/posts/1",
  transform: _toPost,
  builder: (model) {
    if (model.isWaiting) {
      return Text('Loading...');
    }

    if (model.isDone && model.statusCode != 200) {
      return Text(
        'Could not connect to API service. `${model.response.body}`');
    }

    return Column(
      children: <Widget>[
        Text(model.data.id),
        Text(model.data.title),
      ]
    )
  },
)
//
Post _toPost(http.Response response) {
  final json = convert.json.decode(response.body);
  return Post(json['id'], json['title']);
}

Acknowledgements

This was inspired by https://github.com/tkh44/holen

Libraries

flutter_fetch_widget

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. [...]