salvadordeveloper / flutter-crypto-app

Flutter Cryptocurrency App with Riverpod & Freezed + Dio for API REST

Flutter Crypto APP

Complete Flutter Application with Riverpod & Freezed + Dio for API REST.

Features

• API REST (CryptoWatch)
• Linear Graph View (Hour, Day, Week, etc)
• OHLC Graph
• Search
• Light / Dark Theme
• Multi Language
• Exchange Selection
• Favorite Pair

Stack

• Flutter 2.10.2
• Riverpod + Hooks
• Freezed
• Dio

Testing

• Unit Testing (flutter_test)
• Integration Testing (integration_test)
• Mock Data (http_mock_adapter)
• Github Actions (iOS & Android Integration Test)

Screenshots

Home	Details	Settings

Setup project

Download project

git clone https://github.com/salvadordeveloper/flutter-crypto-app

Get flutter dependencies

flutter pub get

You need to create an account at https://cryptowat.ch/ to get a personal API KEY

Rename the env.example file to .env and put there you API KEY

API_KEY={CryptoWatch_KEY}

Run the app

flutter run

If you have any error with generated files try to run this

flutter pub run build_runner build --delete-conflicting-outputs

Testing

Unit Test

flutter test

Integration Test

flutter drive --driver=test_driver/integration_test.dart --target=integration_test/main_test.dart

Resources

Flutter Docs

Riverpod Docs

Cryptowatch Docs

Licence

MIT License

Copyright (c) 2022 Salvador Valverde

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

flutter-crypto-app's Issues

Please mention that app supports null safety

If I'm correct, this app support null safety. Can you also mention it in the ReadMe?

Can you consider integrate flutter_native_splash?

Thanks for nice app. It's hard to find a good repo to learn Flutter with Riverpod like yours.

I see this app doesn't have any splash yet. Can you consider integrate https://pub.dev/packages/flutter_native_splash?

Exception has occurred. DataException (errorBadRequest)

Hello!
I tried to run your code but it gives me the following error:

Exception has occurred.
DataException (errorBadRequest)

The error occurs in this part of the code:

final favoritePairProvider = FutureProvider<FavoritePair>((ref) async {
  final cancelToken = CancelToken();
  ref.onDispose(() => cancelToken.cancel());

  final settings = ref.watch(cryptoSettings);
  String exchangeName = settings.maybeWhen(
      data: (details) => details.favoriteExchange, orElse: () => "");
  String pairName = settings.maybeWhen(
      data: (details) => details.favoritePair, orElse: () => "");

  if (exchangeName.isEmpty || pairName.isEmpty) {
    throw DataException(message: LocaleKeys.errorSomethingWentWrong);
  }

  Pair pair = Pair(pair: pairName, exchange: exchangeName);
  try {
    PairSummary pairSummary = await ref
        .read(cryptoRepository)
        .getPairSummary(exchangeName, pairName, cancelToken: cancelToken);
    return FavoritePair(pair: pair, pairSummary: pairSummary);
  } on DataException catch (error) {
    if (error.message == LocaleKeys.errorRequestNotFound) {
      ref.read(cryptoSettings.notifier).verifyFavoritePair();
    }
    throw error;
  }
});

I also changed the .env-example file to .env and copied my gotten API private key like below into it:

API_KEY=ddTaK3jVw5fgdfgdgfdgfgfdgfdgfd

Do you know how can I fix it?

Navigation Provider

Navigation provider is not working..

Add a close button to the search bar

When the user enters the search content, they can click the close button to quickly clear the search content to improve user experience.

You can consider using ConsumerStatefulWidget to achieve this function.

[Security] Workflow release.yml is using vulnerable action actions/checkout

The workflow release.yml is referencing action actions/checkout using references v1. However this reference is missing the commit a6747255bd19d7a757dbdda8c654a9f84db19839 which may contain fix to the some vulnerability.
The vulnerability fix that is missing by actions version could be related to:
(1) CVE fix
(2) upgrade of vulnerable dependency
(3) fix to secret leak and others.
Please consider to update the reference to the action.

Statemanagement concept

explain?

Targeting S+ (version 31 and above) requires that an explicit value for android:exported be defined when intent filters are present]

Targeting S+ (version 31 and above) requires that an explicit value for android:exported be defined when intent filters are present]

Consider adding android:exported="true" to AndroidManifest.xml.

SearchScreen doesn't show CircularProgressIndicator first

When SearchScreen requests network data, it first displays No results.

Because the list is initialized by default, if the network data is not loaded, the returned list will cause data.length to be 0, and then display No results.
So consider trying not to initialize the list and let it return null.

Then consider displaying CircularProgressIndicator when data == null.
And when data.length == 0, displays No results.

Just choose one of flutter_riverpod and hooks_riverpod

Because HookConsumerWidget is used in the project, maybe you can consider just keeping hooks_riverpod.

Error: A value of type 'ListTileThemeData' can't be assigned to a variable of type 'ListTileTheme'. -

/C:/src/flutter/flutter/.pub-cache/hosted/pub.dartlang.org/settings_ui-1.0.0/lib/src/cupertino_settings_item.dart:76:51: Error: A value of type 'ListTileThemeData' can't be assigned to a variable of type 'ListTileTheme'.

• 'ListTileThemeData' is from 'package:flutter/src/material/list_tile.dart' ('/C:/src/flutter/flutter/packages/flutter/lib/src/material/list_tile.dart').
• 'ListTileTheme' is from 'package:flutter/src/material/list_tile.dart' ('/C:/src/flutter/flutter/packages/flutter/lib/src/material/list_tile.dart').
  final ListTileTheme tileTheme = ListTileTheme.of(context);
  ^

[Security] Workflow tests.yml is using vulnerable action actions/checkout

The workflow tests.yml is referencing action actions/checkout using references v1. However this reference is missing the commit a6747255bd19d7a757dbdda8c654a9f84db19839 which may contain fix to the some vulnerability.
The vulnerability fix that is missing by actions version could be related to:
(1) CVE fix
(2) upgrade of vulnerable dependency
(3) fix to secret leak and others.
Please consider to update the reference to the action.

running error

No file or variants found for asset: .env.