flutternetworkservicehandler 0.0.5

This Package is easy and useful to handle network calls using single class.

🎖 Installing

1. First goto your pubspec.yaml file and add dependency:

   flutternetworkservicehandler:
   

2. run flutter pub get to update the packages dependencies.

⚡️ Import

3. In your code, you can use it like this: first import the package:

import 'package:flutternetworkservicehandler/HttpNetworkService.dart';

🎮 Code Usage

then use it like this in your code:

import 'package:flutter/material.dart';
import 'package:flutternetworkservicehandler/src/http_network_service.dart';
import 'package:flutternetworkservicehandler/src/http_exception.dart';

void main() {
runApp(MyApp());
}

class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
  return MaterialApp(
    title: 'Flutter Demo',
    theme: ThemeData(
      primarySwatch: Colors.blue,
      visualDensity: VisualDensity.adaptivePlatformDensity,
    ),
    home: MyHomePage(),
  );
}
}

class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
List _usersList = [];

var errorMessage = 'Can\'t proceed request';

void _showErrorDialog(String message) {
  showDialog(
    context: context,
    builder: (ctx) => AlertDialog(
      title: Text('Error Occured'),
      content: Text(message),
      actions: <Widget>[
        FlatButton(
          onPressed: () {
            Navigator.of(ctx).pop();
          },
          child: Text('OK!'),
        )
      ],
    ),
  );
}

Future getUsersData() async {
  try {
    final responseUsersList = await HttpNetworkService.getRequest(
      url: 'https://jsonplaceholder.typicode.com/userss',
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
      },
    );
    for (var items in responseUsersList) {
      print(items);
      _usersList.add({
        'id': items['id'],
        'username': items['username'],
        'website': items['website'],
      });
    }
  } on HttpException catch (error) {
    if (error.toString().contains('Redirection error')) {
      errorMessage = 'The resource requested has been temporarily moved.';
    } else if (error.toString().contains('Bad Request Format')) {
      errorMessage = 'Your client has issued a malformed or illegal request.';
    } else if (error.toString().contains('Internal Server Error')) {
      errorMessage =
          'The server encountered an error and could not complete your request.';
    } else if (error.toString().contains('No Internet Found')) {
      errorMessage =
          'There is no or poor internet connect. Please try again later';
    }
    _showErrorDialog(errorMessage);
  }
}

@override
Widget build(BuildContext context) {
  return Scaffold(
    body: FutureBuilder(
      future: getUsersData(),
      builder: (ctx, snapshot) =>
          snapshot.connectionState == ConnectionState.waiting
              ? Center(
                  child: CircularProgressIndicator(),
                )
              : snapshot.data == null
                  ? Center(
                      child: Column(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: [
                          Icon(
                            Icons.error,
                            size: 75,
                            color: Colors.red,
                          ),
                          Padding(
                            padding: const EdgeInsets.all(8.0),
                            child: Text(
                              errorMessage.toUpperCase(),
                              textAlign: TextAlign.center,
                              style: TextStyle(
                                fontSize: 16.0,
                                fontWeight: FontWeight.w700,
                              ),
                            ),
                          ),
                        ],
                      ),
                    )
                  : ListView.builder(
                      itemCount: _usersList.length,
                      itemBuilder: (ctx, i) => ListTile(
                        title: Text(_usersList[i]['username']),
                        subtitle: Text(_usersList[i]['website']),
                        leading: CircleAvatar(
                          child: FittedBox(
                            child: Text(
                              _usersList[i]['id'].toString(),
                            ),
                          ),
                        ),
                        trailing: Icon(
                          Icons.arrow_forward_ios,
                        ),
                      ),
                    ),
    ),
  );
}
}

🐛 Bugs/Requests

If you encounter any problems feel free to open an issue. If you feel the library is missing some feature, please raise a ticket on Github. Pull request are also welcome.

🚀 SUPPORT

You liked this package? then give it a star. If you want to help then: Star this repository. Send a Pull Request with new features, see Contribution Guidelines. Share this package. Create issues if you find a Bug or want to suggest something.