Crate yahoo_finance

Yahoo Finance

Yahoo! provides some great market data and this is a library to easily get that information out of Yahoo for use in financial applications.

Currently yahoo_finance provides:

• Historical quote information OHCL Data + volume
• Relatively real-time quote informaton with comparible performance to the real-time updates on their website

Quick Examples

To retrieve the intraday high for the last 3 months of Apple you can use something like:

use yahoo_finance::{history, Interval};
 
// retrieve 6 months worth of data
let data = history::retrieve_interval("AAPL", Interval::_6mo).unwrap();
 
// print out some high numbers!
for bar in &data {
   println!("Apple hit an intraday high of ${:.2} on {}.",
     bar.high, bar.timestamp.format("%b %e %Y")
   )
}

To listen on relatively real-time changes in price:

use yahoo_finance::realtime::{ Quote, Streamer };

fn print_quote(quote: Quote) {
   println!("At {}, {} is trading for ${}", quote.timestamp, quote.symbol, quote.price)
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
   let mut streamer = Streamer::new().await;

   streamer.subscribe(vec!["AAPL", "IBM", "^DJI", "^IXIC"], print_quote).await;
   streamer.run().await?;

   Ok(())
}

Modules

history	Historical quotes
realtime	Realtime quotes

Structs

Bar	A single 'bar' of price information containing OHLCV data

Enums

Error	All possible errors that can occur when using yahoo finance
Interval	An interval use when requesting periods of quote information.