Intrinio Java SDK for Real-Time Stock Prices

SDK for working with Intrinio's realtime Multi-Exchange or delayed SIP prices feed. Intrinio’s Multi-Exchange feed bridges the gap by merging real-time equity pricing from the IEX and MEMX exchanges. Get a comprehensive view with increased market volume and enjoy no exchange fees, no per-user requirements, no permissions or authorizations, and little to no paperwork.

Intrinio provides real-time stock prices via a two-way WebSocket connection. To get started, subscribe to a real-time data feed and follow the instructions below.

Requirements

• Java 14+

Installation

Go to Release, download the JAR, reference it in your project. The JAR contains dependencies necessary to the SDK.

Sample Project

For a sample Java project see: intrinio-realtime-java-sdk

Features

• Receive streaming, real-time price quotes (last trade, bid, ask)
• Subscribe to updates from individual securities
• Subscribe to updates for all securities

Example Usage

public static void main(String[] args) {
		Client.Log("Starting sample app");
		TradeHandler tradeHandler = new TradeHandler();
		QuoteHandler quoteHandler = new QuoteHandler();
		Client client = new Client(tradeHandler, quoteHandler);
		Timer timer = new Timer();
		TimerTask task = new TimerTask() {
			public void run() {
				Client.Log(client.getStats());
				tradeHandler.tryLog();
				quoteHandler.tryLog();
			}
		};
		timer.schedule(task, 10000, 10000);
		client.join(); //Load symbols from config.json
		//client.join(new String[] {"AAPL", "GOOG", "MSFT"}, false); //specify symbols at runtime
	}

Handling Quotes

There are thousands of securities, each with their own feed of activity. We highly encourage you to make your trade and quote handlers has short as possible and follow a queue pattern so your app can handle the volume of activity.

Data Format

Trade Message

public record Trade(String symbol, double price, long size, long timestamp, long totalVolume)

• symbol - Ticker symbole.
• price - the price in USD
• size - the size of the last trade.
• totalVolume - The number of stocks traded so far today for this symbol.
• timestamp - a Unix timestamp in nanoseconds since unix epoch.

Quote Message

public record Quote(QuoteType type, String symbol, double price, long size, long timestamp)

• type - the quote type
  • ask - represents an ask type
  • bid - represents a bid type
• symbol - Ticker symbol.
• price - the price in USD
• size - the size of the last ask or bid).
• timestamp - a Unix timestamp in nanoseconds since unix epoch.

API Keys

You will receive your Intrinio API Key after creating an account. You will need a subscription to a realtime data feed as well.

Methods

Client client = new Client(tradeHandler, quoteHandler) - Creates an Intrinio Real-Time client. The provided handlers implement OnTrade and OnQuote, which handle what happens when the associated event happens.

• Parameter tradeHandler: The handler for trade events. This function will be invoked when a 'trade' has been received. The trade will be passed as an argument to the callback.
• Parameter quoteHandler: Optional. The handler for quote events. This function will be invoked when a 'quote' has been received. The quote will be passed as an argument to the callback. If 'onQuote' is not provided, the client will NOT request to receive quote updates from the server.

client.join(symbols, tradesOnly); - Joins the given channels. This can be called at any time. The client will automatically register joined channels and establish the proper subscriptions with the WebSocket connection. If no arguments are provided, this function joins channel(s) configured in config.json.

• Parameter symbols - Optional. A string representing a single ticker symbol (e.g. "AAPL") or an array of ticker symbols (e.g. ["AAPL", "MSFT", "GOOG"]) to join. You can also use the special symbol, "lobby" to join the firehose channel and recieved updates for all ticker symbols. You must have a valid "firehose" subscription.
• Parameter tradesOnly - Optional (default: false). A boolean value indicating whether the server should return trade data only (as opposed to trade and quote data).

client.join(["AAPL", "MSFT", "GOOG"])
client.join("GE", true)
client.join("lobby") //must have a valid 'firehose' subscription

client.leave(symbols) - Leaves the given channels.

• Parameter symbols - Optional (default = all channels). A string representing a single ticker symbol (e.g. "AAPL") or an array of ticker symbols (e.g. ["AAPL", "MSFT", "GOOG"]) to leave. If not provided, all subscribed channels will be unsubscribed.

client.leave(["AAPL", "MSFT", "GOOG"])
client.leave("GE")
client.leave("lobby")
client.leave()

client.stop() - Closes the WebSocket, stops the self-healing and heartbeat intervals. Call this to properly dispose of the client.

Configuration

config.json

{
	"apiKey": "",
	"provider": "REALTIME", //or DELAYED_SIP
	"symbols": [ "AAPL", "MSFT", "GOOG" ], //This is a list of individual tickers to subscribe to, or "lobby" to subscribe to all at once (firehose).
	"tradesOnly": true, //This indicates whether you only want trade events (true) or you want trade, ask, and bid events (false).
	"numThreads": 4 //The number of threads to use for processing events.
}