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WIP Bitfinex, added human readable for long values
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| import 'dart:convert'; | ||
| import 'package:flutter_trading_volume/models/order_type.dart'; | ||
| import 'base_trade.dart'; | ||
|
|
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| class BitfinexData { | ||
| final String symbol; | ||
| final double price; | ||
| final double size; | ||
| final String side; | ||
| final String time; | ||
|
|
||
| BitfinexData( | ||
| {this.symbol, this.price, this.size, this.side, this.time}); | ||
|
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| factory BitfinexData.fromJson(dynamic jsonData) { | ||
| return BitfinexData( | ||
| symbol: jsonData['symbol'] as String, | ||
| price: jsonData['price'] ?? 0, | ||
| size: jsonData['size'] ?? 0, | ||
| side: jsonData['side'] as String, | ||
| time: jsonData['timestamp'] as String | ||
| ); | ||
| } | ||
| } | ||
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| class BitfinexTrade extends BaseTrade{ | ||
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| BitfinexTrade({ | ||
| symbol, | ||
| price, | ||
| quantity, | ||
| orderType, | ||
| tradeTime}) : super(market: 'Bitfinex', symbol: symbol, price: price, | ||
| quantity: quantity, tradeTime: tradeTime, orderType: orderType); | ||
|
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| // ignore: slash_for_doc_comments | ||
| /** | ||
| { | ||
| "data":[ | ||
| { | ||
| "timestamp":"2020-12-08T16:06:13.580Z", | ||
| "symbol":"XBTUSD", | ||
| "side":"Buy", | ||
| "size":1500, | ||
| "price":18813, | ||
| "tickDirection":"PlusTick", | ||
| "trdMatchID":"3539a9fa-ef88-4c25-6634-92997c69ec31", | ||
| "grossValue":7972500, | ||
| "homeNotional":0.079725, | ||
| "foreignNotional":1500 | ||
| } | ||
| ] | ||
| } | ||
| */ | ||
| factory BitfinexTrade.fromJson(String jsonAsString) { | ||
| if(jsonAsString == null || jsonAsString.contains('subscribe') || jsonAsString.contains('info')) return null; | ||
| final jsonData = json.decode(jsonAsString); | ||
| var dataJson = jsonData['data'] as List; | ||
| List<BitfinexData> tradeData = dataJson.map((bitmexJson) => BitfinexData.fromJson(bitmexJson)).toList(); | ||
| return BitfinexTrade( | ||
| symbol: tradeData != null ? tradeData[0].symbol : '', | ||
| price: tradeData != null ? tradeData[0].price ?? 0 : 0, | ||
| quantity: tradeData != null ? tradeData[0].size ?? 0 : 0, | ||
| orderType: tradeData != null ? (tradeData[0].side.contains('Buy') ? OrderType.BUY : OrderType.SELL) : OrderType.ALL, | ||
| tradeTime: tradeData != null ? tradeData[0].time : '0', | ||
| ); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_trading_volume/models/supported_pairs.dart'; | ||
| import 'package:flutter_trading_volume/websockets/base_socket.dart'; | ||
| import 'package:web_socket_channel/html.dart'; | ||
|
|
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| class BitfinexSocket implements BaseSocket { | ||
| SupportedPairs pair; | ||
| HtmlWebSocketChannel socket; | ||
|
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| BitfinexSocket({@required this.pair}); | ||
|
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| @override | ||
| HtmlWebSocketChannel connect() { | ||
| if(socket == null) { | ||
| socket = HtmlWebSocketChannel.connect(wsUrl()); | ||
| } | ||
| if(socket != null && socket.sink != null) { | ||
| socket.sink.add(wsSubscribeMessage()); | ||
| } | ||
| return socket; | ||
| } | ||
|
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| @override | ||
| void closeConnection() { | ||
| if(socket != null && socket.sink != null) { | ||
| socket.sink.close(); | ||
| } | ||
| socket = null; | ||
| } | ||
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| @override | ||
| String wsUrl() { | ||
| return 'wss://api-pub.bitfinex.com/ws/2'; | ||
| } | ||
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| @override | ||
| String wsSubscribeMessage() { | ||
| return """{"event": "subscribe", "channel": "trades", "symbol": "${pair.toStringUSD()}"}"""; | ||
| } | ||
|
|
||
| } |