https://github.com/UsamaSarwar/flutter-trading-app

Flutter Finance Trading App
https://github.com/UsamaSarwar/flutter-trading-app

blockchain crypto cryptocurrency flutter flutter-blockchain flutter-crypto flutter-trading trading

Last synced: about 2 months ago
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Flutter Finance Trading App

• Host: GitHub
• URL: https://github.com/UsamaSarwar/flutter-trading-app
• Owner: UsamaSarwar
• License: mit
• Created: 2022-09-21T19:24:36.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2022-09-22T23:01:11.000Z (almost 2 years ago)
• Last Synced: 2024-05-29T03:27:13.660Z (4 months ago)
• Topics: blockchain, crypto, cryptocurrency, flutter, flutter-blockchain, flutter-crypto, flutter-trading, trading
• Language: Dart
• Homepage:
• Size: 21.7 MB
• Stars: 14
• Watchers: 1
• Forks: 10
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Flutter Trading App `v1.0.0`

🔗 Visit [Live Web App](https://usamasarwar.github.io/flutter-trading-app)

## Screenshoots



> Tip: You can switch currencies by tapping on the currency Symbols.



> Tip: You can change your desired duration. i.e. 1m, 3m or 1d etc.



> Tip: You can scroll up and down to zoom-in and zoom-out.

## Documentation

### Establishing Connection with Binance via Web Sockets

```dart

  WebSocketChannel establishConnection(String symbol, String interval) {

    final channel = WebSocketChannel.connect(

      Uri.parse('wss://stream.binance.com:9443/ws'),

    );

    channel.sink.add(

      jsonEncode(

        {

          "method": "SUBSCRIBE",

          "params": ["$symbol@kline_$interval"],

          "id": 1

        },

      ),

    );

    return channel;

  }

```

### API Call for fetching Candles

```dart

  Future> fetchCandles(

      {required String symbol, required String interval, int? endTime}) async {

    final uri = Uri.parse(

        "https://api.binance.com/api/v3/klines?symbol=$symbol&interval=$interval${endTime != null ? "&endTime=$endTime" : ""}");

    final res = await http.get(uri);

    return (jsonDecode(res.body) as List)

        .map((e) => Candle.fromJson(e))

        .toList()

        .reversed

        .toList();

  }

```

### API Calls for fetching Symbols

```dart

  Future> fetchSymbols() async {

    final uri = Uri.parse("https://api.binance.com/api/v3/ticker/price");

    final res = await http.get(uri);

    return (jsonDecode(res.body) as List)

        .map((e) => e["symbol"] as String)

        .toList();

  }

```

### Dependencies

```yaml

dependencies:

  # Flutter SDK

  flutter:

    sdk: flutter

  # Dependency for Icons

  cupertino_icons: ^1.0.2

  # Dependency for HTTP Calls

  http: ^0.13.3

  # Dependency for Web Socket Channels

  web_socket_channel: ^2.1.0

```

## Developer

[Usama Sarwar](https://github.com/UsamaSarwar)