Javascript flatter:从IEX JSON API检索股票统计和报价列表 IEX JSON API: import'package:http/http.dart'作为http; 导入“dart:convert”; 导入“../models/stocks.dart”; Future getStocks()异步{ //最终字符串url= 'https://cloud.iexapis.com/stable/stock/market/batch? 符号=aapl、fb和类型=报价和标记=隐藏'; //final client=new http.client(); //final streamedRest=等待客户端发送( //请求('get',Uri.parse(url)) 常量url=https://cloud.iexapis.com/stable/stock/market/batch?s ymbols=aapl,fb&types=quote&token=Hidden'; 最终响应=等待http.get(url); final decodedResponse=json.decode(response.body).keys(); 最终数据=Stocks.fromJson(decodedResponse); //http.Response-Response=wait-http.get(Uri,头:{“接受”: “应用程序/json”}); //打印(jsonDecode(response.body.keys()); 返回jsonDecode(response.body).keys(); //返回流 //.变换(utf8.解码器) //.transform(json.decoder) //.展开((数据)=>(数据作为列表)) //.map((数据)=>Stocks.fromJSON(数据)); }
{“AAPL”:{“统计数据”:{“week52change”:0.108189,“week52high”:244.8,“week52low”:142,“marketcap”:1100781864400,“employees”:132000,“day200MovingAvg”:196.46,“day50MovingAvg”:220.62,“float”:4512324403.94,“avg10Volume”:23328121.8,“avg30Volume”:26924247.43,“ttmEPS”:11.8267,“TTMDidendrate”:2.96,“companyName”:“Apple,Inc.”,“sharesOutstanding”:4519180000,“最大变化百分比”:240.1683,“年5变化百分比”:1.315,“年2变化百分比”:0.5505,“年1变化百分比”:0.108189,“年初变化百分比”:0.542427,“月6变化百分比”:0.186574,“月3变化百分比”:0.176601,“月1变化百分比”:0.1022,“日30变化百分比”:0.113509,“日5变化百分比”:0.030329,“下一个截止日期”:null,“分割收益率”“:0.012152065029969619,“下一个交易日”:“2019-10-30”,“exDividendDate”:“2019-08-09”,“peRatio”:20.75,“beta”:1.534551916699308},“引号”:{“symbol”:“AAPL”,“companyName”:“Apple,Inc.”,“primaryExchange”:“纳斯达克”,“计算价格”:“tops”,“open”:null,“openTime”:null,“closeTime”:null,“closeTime”:null,“high”:null,“low”:null,“latestPrice”:245.395,“latestSource”:“IEX实时价格”,“最晚时间”:“12:37:57” 日志: 正在调试模式下为x86构建的Android SDK上启动lib\main.dart。。。 正在初始化gradle。。。 正在解析依赖项。。。 正在运行Gradle任务“assembleDebug”。。。 已生成build\app\outputs\apk\debug\app-debug.apk。 I/OpenGLRenderer(4854):初始化EGL,版本1.4 D/OpenGLRenderer(4854):交换行为1 D/(4854):主机连接::get()新主机连接已建立0xdc20bf00,tid 4881 D/EGL_仿真(4854):eglCreateContext:0xe3d47760:maj 2 min 0 rcv 2 D/EGL_仿真(4854):eglMakeCurrent:0xe3d47760:ver 2 0(tinfo 0xc6b24a30) D/(4854):主机连接::get()新主机连接已建立0xc6b386c0,tid 4874 D/EGL_仿真(4854):eglCreateContext:0xdc27d780:maj 2 min 0 rcv 2 D/EGL_仿真(4854):eglMakeCurrent:0xdc27d780:ver 2 0(tinfo 0xc6b24dc0) 正在将文件同步到为x86构建的Android SDK设备。。。 I/Choreographer(4854):跳过了279帧!应用程序可能在其主线程上做了太多工作。 D/EGL_仿真(4854):eglMakeCurrent:0xe3d47760:ver 2 0(tinfo 0xc6b24a30) I/OpenGLRenderer(4854):Davey!duration=6180ms;Flags=1,IntendedVsync=596431275408,Vsync=601081275222,OldestInputEvent=9223372036854775807,NewestInputEvent=0,HandleInputStart=601083214976,AnimationStart=601083253387,PerformTraversalsStart=601083255696,DrawStart=60109630305,SyncQueued=601333900000,SyncStart=601335418694,IssueDrawCommandsStart=601335535183,SwapBuffers=602308827762,FrameCompleted=602612881859,DequeueBufferDuration=66828000,QueueBufferDuration=276000, D/EGL_仿真(4854):eglMakeCurrent:0xdc27d780:ver 2 0(tinfo 0xc6b24dc0) 等级Javascript flatter:从IEX JSON API检索股票统计和报价列表 IEX JSON API: import'package:http/http.dart'作为http; 导入“dart:convert”; 导入“../models/stocks.dart”; Future getStocks()异步{ //最终字符串url= 'https://cloud.iexapis.com/stable/stock/market/batch? 符号=aapl、fb和类型=报价和标记=隐藏'; //final client=new http.client(); //final streamedRest=等待客户端发送( //请求('get',Uri.parse(url)) 常量url=https://cloud.iexapis.com/stable/stock/market/batch?s ymbols=aapl,fb&types=quote&token=Hidden'; 最终响应=等待http.get(url); final decodedResponse=json.decode(response.body).keys(); 最终数据=Stocks.fromJson(decodedResponse); //http.Response-Response=wait-http.get(Uri,头:{“接受”: “应用程序/json”}); //打印(jsonDecode(response.body.keys()); 返回jsonDecode(response.body).keys(); //返回流 //.变换(utf8.解码器) //.transform(json.decoder) //.展开((数据)=>(数据作为列表)) //.map((数据)=>Stocks.fromJSON(数据)); },javascript,flutter,dart,stock,algorithmic-trading,Javascript,Flutter,Dart,Stock,Algorithmic Trading,{“AAPL”:{“统计数据”:{“week52change”:0.108189,“week52high”:244.8,“week52low”:142,“marketcap”:1100781864400,“employees”:132000,“day200MovingAvg”:196.46,“day50MovingAvg”:220.62,“float”:4512324403.94,“avg10Volume”:23328121.8,“avg30Volume”:26924247.43,“ttmEPS
导入'dart:convert';
Stocks stocksFromJson(String str)=>Stocks.fromJson(json.decode(str));
字符串stocksToJson(股票数据)=>json.encode(data.toJson());
类股{
字符串符号;
字符串公司名称;
字符串交换;
字符串计算价格;
int-open;
国际开放时间;
双重关闭;
int关闭时间;
双高;
双低;
双晚稻;
字符串最新源;
字符串最晚;
int最晚日期;
最后一卷;
动态IEX实时价格;
动态iexRealtimeSize;
动态IEXLAST更新;
双延迟价格;
int delayedPriceTime;
双延伸价格;
双延伸变化;
双延伸百分比;
延长价格时间;
双前关闭;
前一卷;
智力变化;
百分之二;
国际卷;
动态iexMarketPercent;
动态容积;
国际平均总体积;
动态iexBidPrice;
动态iexBidSize;
动态价格;
动态iexAskSize;
国际市场资本;
双手术;
双周52高;
国际周52低;
双ytdChange;
最后交易时间;
布尔是美国市场开放的;
股票({
这个符号,
本公司名称:,
这是初级交易所,
这个计算价格,
这个,打开,
这是开放时间,
这个,结束,
这一次,,
这个高,,
这个,低,,
这是最新的价格,
这是最新的消息来源,
最近,
这是最晚的日期,
这是最新的一卷,
这个.iexRealtimePrice,
这个.iexRealtimeSize,
此.iexlast已更新,
这个,推迟的价格,
这一次,推迟了价格,
这个价格,
这是一种延伸的变化,
这是百分之十,
这一次,,
这个,以前的关闭,
这是上一卷,
这是一种改变,
这是百分之十,
这一卷,,
这个.iexMarketPercent,
这个.iexVolume,
这个.avgTotalVolume,
这是米饭,
这个.iexBidSize,
这是iexAskPrice,
这个.iexAskSize,
这个.市场帽,,
这是我的作业,
本周52高,
本周52low,
这是ytdChange,
这一次,
这个.isUsMarketOpen,
});
工厂库存。fromJson(映射json)=>库存(
symbol:json[“symbol”],
companyName:json[“company”
import 'package:http/http.dart' as http;
import 'dart:convert';
import '../models/stocks.dart';
Future<Map<String,dynamic>> getStocks() async {
// final String url =
'https://cloud.iexapis.com/stable/stock/market/batch?
symbols=aapl,fb&types=quote&token=Hidden';
// final client = new http.Client();
// final streamedRest = await client.send(
// http.Request('get', Uri.parse(url))
const url = 'https://cloud.iexapis.com/stable/stock/market/batch?s
ymbols=aapl,fb&types=quote&token=Hidden';
final response = await http.get(url);
final decodedResponse = json.decode(response.body).keys();
final data = Stocks.fromJson(decodedResponse);
//http.Response response = await http.get(Uri, headers: {"Accept":
"application/json"});
//print(jsonDecode(response.body).keys());
return jsonDecode(response.body).keys();
// return streamedRest.stream
// .transform(utf8.decoder)
// .transform(json.decoder)
// .expand((data) => (data as List<dynamic>))
// .map((data) => Stocks.fromJSON(data));
}
import 'dart:convert';
Stocks stocksFromJson(String str) => Stocks.fromJson(json.decode(str));
String stocksToJson(Stocks data) => json.encode(data.toJson());
class Stocks {
String symbol;
String companyName;
String primaryExchange;
String calculationPrice;
int open;
int openTime;
double close;
int closeTime;
double high;
double low;
double latestPrice;
String latestSource;
String latestTime;
int latestUpdate;
int latestVolume;
dynamic iexRealtimePrice;
dynamic iexRealtimeSize;
dynamic iexLastUpdated;
double delayedPrice;
int delayedPriceTime;
double extendedPrice;
double extendedChange;
double extendedChangePercent;
int extendedPriceTime;
double previousClose;
int previousVolume;
int change;
double changePercent;
int volume;
dynamic iexMarketPercent;
dynamic iexVolume;
int avgTotalVolume;
dynamic iexBidPrice;
dynamic iexBidSize;
dynamic iexAskPrice;
dynamic iexAskSize;
int marketCap;
double peRatio;
double week52High;
int week52Low;
double ytdChange;
int lastTradeTime;
bool isUsMarketOpen;
Stocks({
this.symbol,
this.companyName,
this.primaryExchange,
this.calculationPrice,
this.open,
this.openTime,
this.close,
this.closeTime,
this.high,
this.low,
this.latestPrice,
this.latestSource,
this.latestTime,
this.latestUpdate,
this.latestVolume,
this.iexRealtimePrice,
this.iexRealtimeSize,
this.iexLastUpdated,
this.delayedPrice,
this.delayedPriceTime,
this.extendedPrice,
this.extendedChange,
this.extendedChangePercent,
this.extendedPriceTime,
this.previousClose,
this.previousVolume,
this.change,
this.changePercent,
this.volume,
this.iexMarketPercent,
this.iexVolume,
this.avgTotalVolume,
this.iexBidPrice,
this.iexBidSize,
this.iexAskPrice,
this.iexAskSize,
this.marketCap,
this.peRatio,
this.week52High,
this.week52Low,
this.ytdChange,
this.lastTradeTime,
this.isUsMarketOpen,
});
factory Stocks.fromJson(Map<String, dynamic> json) => Stocks(
symbol: json["symbol"],
companyName: json["companyName"],
primaryExchange: json["primaryExchange"],
calculationPrice: json["calculationPrice"],
open: json["open"],
openTime: json["openTime"],
close: json["close"].toDouble(),
closeTime: json["closeTime"],
high: json["high"].toDouble(),
low: json["low"].toDouble(),
latestPrice: json["latestPrice"].toDouble(),
latestSource: json["latestSource"],
latestTime: json["latestTime"],
latestUpdate: json["latestUpdate"],
latestVolume: json["latestVolume"],
iexRealtimePrice: json["iexRealtimePrice"],
iexRealtimeSize: json["iexRealtimeSize"],
iexLastUpdated: json["iexLastUpdated"],
delayedPrice: json["delayedPrice"].toDouble(),
delayedPriceTime: json["delayedPriceTime"],
extendedPrice: json["extendedPrice"].toDouble(),
extendedChange: json["extendedChange"].toDouble(),
extendedChangePercent: json["extendedChangePercent"].toDouble(),
extendedPriceTime: json["extendedPriceTime"],
previousClose: json["previousClose"].toDouble(),
previousVolume: json["previousVolume"],
change: json["change"],
changePercent: json["changePercent"].toDouble(),
volume: json["volume"],
iexMarketPercent: json["iexMarketPercent"],
iexVolume: json["iexVolume"],
avgTotalVolume: json["avgTotalVolume"],
iexBidPrice: json["iexBidPrice"],
iexBidSize: json["iexBidSize"],
iexAskPrice: json["iexAskPrice"],
iexAskSize: json["iexAskSize"],
marketCap: json["marketCap"],
peRatio: json["peRatio"].toDouble(),
week52High: json["week52High"].toDouble(),
week52Low: json["week52Low"],
ytdChange: json["ytdChange"].toDouble(),
lastTradeTime: json["lastTradeTime"],
isUsMarketOpen: json["isUSMarketOpen"],
);
Map<String, dynamic> toJson() => {
"symbol": symbol,
"companyName": companyName,
"primaryExchange": primaryExchange,
"calculationPrice": calculationPrice,
"open": open,
"openTime": openTime,
"close": close,
"closeTime": closeTime,
"high": high,
"low": low,
"latestPrice": latestPrice,
"latestSource": latestSource,
"latestTime": latestTime,
"latestUpdate": latestUpdate,
"latestVolume": latestVolume,
"iexRealtimePrice": iexRealtimePrice,
"iexRealtimeSize": iexRealtimeSize,
"iexLastUpdated": iexLastUpdated,
"delayedPrice": delayedPrice,
"delayedPriceTime": delayedPriceTime,
"extendedPrice": extendedPrice,
"extendedChange": extendedChange,
"extendedChangePercent": extendedChangePercent,
"extendedPriceTime": extendedPriceTime,
"previousClose": previousClose,
"previousVolume": previousVolume,
"change": change,
"changePercent": changePercent,
"volume": volume,
"iexMarketPercent": iexMarketPercent,
"iexVolume": iexVolume,
"avgTotalVolume": avgTotalVolume,
"iexBidPrice": iexBidPrice,
"iexBidSize": iexBidSize,
"iexAskPrice": iexAskPrice,
"iexAskSize": iexAskSize,
"marketCap": marketCap,
"peRatio": peRatio,
"week52High": week52High,
"week52Low": week52Low,
"ytdChange": ytdChange,
"lastTradeTime": lastTradeTime,
"isUSMarketOpen": isUsMarketOpen,
};
}