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Flutter App : A migration of the pandas functionality to read yahoo finance stock prices

This project is a migration of the pandas functionality to read yahoo finance stock prices

https://github.com/pydata/pandas-datareader/blob/main/pandas_datareader/yahoo/daily.py

This lib have a strong advantage on backtesting strategies as it can give all the dataframe in yahoo finance, this means that can get daily data on futures like NQ=F and ES=F since 2000 and it goes as far as getting data from 1927 on the SP500 yahoo finance symbol ^GSPC

Yahoo Finance data

Features

Get daily data from yahoo finance for the entire dataframe available

Getting started

Add the dependency to your pubspec.yaml:

yahoo_finance_data_reader: ^0.0.2

Usage

List<dynamic> prices = await YahooFinanceDailyReader().getDailyData('GOOG');

Additional information

To include in your app as a widget you can start with this future builder and debug your way until your desired result

FutureBuilder( future: const YahooFinanceDailyReader().getDailyData('GOOG'), builder: (BuildContext context, AsyncSnapshot<List<dynamic>> snapshot) { if (snapshot.connectionState == ConnectionState.done) { List<dynamic> historicalData = snapshot.data!; return ListView.builder( itemCount: historicalData.length, itemBuilder: (BuildContext context, int index) { return Container( margin: const EdgeInsets.all(10), child: Text(historicalData[index].toString())); }); } else if (snapshot.hasError) { return Text('Error ${snapshot.error}'); } return const Center( child: SizedBox( height: 50, width: 50, child: CircularProgressIndicator(), ), ); }, )

Like us on pub.dev

Package url:
https://pub.dev/packages/yahoo_finance_data_reader

Instruction to publish the package to pub.dev

dart pub publish

GitHub

View Github

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