Quedex Official Java API

The best way to communicate with Quedex Bitcoin Derivatives Exchange using Java.

Important!

• Next to this documentation, please read the general documentation of our WebSocket API.
• Quedex Exchange uses an innovative schedule of session states. Some session states employ different order matching model - namely, Auction. Please consider this when placing orders.

Getting the API

Include in your project as a Maven dependency:

<dependency>
    <groupId>net.quedex</groupId>
    <artifactId>java-api</artifactId>
    <version>0.7.0</version>
</dependency>

Using the API:

To use the API you need to provide a configuration - the default way to do that is via a .properties file. An example may be found in qdxConfig.properties.example - rename this file to qdxConfig.propertie, place on your classpath and fill in the following (the rest of the properties is done):

• net.quedex.client.api.accountId
• net.quedex.client.api.userPrivateKey

You may find your account id and encrypted private key in our web application - on the trading dashboard select the dropdown menu with your email address in the upper right corner and go to User Profile (equivalent to visiting https://quedex.app/profile when logged in).

Now you are ready to start hacking:

char[] pwd = ... // read private key passphrase
Config qdxConfig = Config.fromResource(pwd); // initialise the config from qdxConfig.properties using one of the factory methods

MarketStream marketStream = new WebsocketMarketStream(qdxConfig);
UserStream userStream = new WebsocketUserStream(qdxConfig);

// register stream failure listeners
marketStream.registerStreamFailureListener(...);
userStream.registerStreamFailureListener(...)

// start streams
marketStream.start();
userStream.start();

// receive tradable instruments
marketStream.registerInstrumentsListener(instruments -> {

    // register and subscribe other market stream listeners
    marketStream.registerQuotesListener(...).subscribe(instruments.keySet()); // to subscribe all instruments
    marketStream.register*(...).subscribe(...);
});

// register user stream listeners
userStream.registerOpenPositionListener(...);
userStream.register*(...);

// subscribe user stream listeners; see Javadoc for details
userStream.subscribeListeners();

// play with the streams: receive events, place orders and so on
userStream.placeOrder(...);
userStream.batch()
    .placeOrder(...)
    ...
    .send();
...

// once finished, stop the streams
userStream.stop();
marketStream.stop();

Contributing Guide

Default channel for submitting questions regarding the API is opening new issues. In cases when information disclosure is not possible, you can contact us at [email protected].

In case you need to add a feature to the API, please submit an issue containing change proposal before submitting a PR.

Pull requests containing bugfixes are very welcome!

License

Copyright © 2017-2019 Quedex Ltd. API is released under Apache License Version 2.0.