ZacMarcus / YahooFinance.NET

YahooFinance.NET allows you to easily download historical end of day stock data and historical dividend data from Yahoo Finance.

YahooFinance.NET

Download realtime and historical end of day stock data and historical dividend data via the Yahoo Finance API

Install via NUGET

Install-Package YahooFinance.NET

Usage

using YahooFinance.NET;

string cookie = "YOUR_COOKIE";
string crumb = "YOUR_CRUMB";


string exchange = "ASX";
string symbol = "AFI";

YahooFinanceClient yahooFinance = new YahooFinanceClient(cookie, crumb);
string yahooStockCode = yahooFinance.GetYahooStockCode(exchange, symbol);
List<YahooHistoricalPriceData> yahooPriceHistory = yahooFinance.GetDailyHistoricalPriceData(yahooStockCode);
List<YahooHistoricalDividendData> yahooDividendHistory = yahooFinance.GetHistoricalDividendData(yahooStockCode);
YahooRealTimeData yahooRealTimeData = yahooFinance.GetRealTimeData(yahooStockCode);

To get a cookie/crumb

First try this script

To get a cookie manually

1. Go to the Yahoo finance URL and search for a stock. eg. https://finance.yahoo.com/quote/AFI.AX/history?p=AFI.AX
2. In Chrome open Settings > Show advanced settings... > Privacy > Content Settings... > All cookies and site data...
3. Find the site yahoo.com and the cookie name sould be 'B'
4. Copy the 'Content'
5. This is your cookie

To get a crumb manually

1. Go to the Yahoo finance URL and search for a stock. eg. https://finance.yahoo.com/quote/AFI.AX/history?p=AFI.AX
2. Right click on 'Download Data' and copy the link address
3. Paste the link somewhere and your crumb will be at the and after the &crumb= eg. https://query1.finance.yahoo.com/v7/finance/download/AFI.AX?period1=1493432127&period2=1496024127&interval=1d&events=history&crumb=YOURCRUMB

Building and testing the project via commandline

1. Open up a Powershell prompt and execute

PS> .\build.ps1

Deploying the package to NuGet

1. Set the NuGet API key via the commandline if its not already set

nuget.exe setApiKey <API-Key> -Source https://www.nuget.org/api/v2/package

2. Increment the AssemblyVersion in AssemblyInfo.cs of the YahooFinance.NET project
3. Open up a Powershell prompt and execute

PS> .\build.ps1 -Target Deploy