Configure exchange connection
How does it work?
There are two steps to configure an exchange connection in Cassandre.
Cassandre uses XChange, a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges. The first thing you have to do is to find the XChange library suited for the Exchange you chose. The list is here.
For example, for a Coinbase connection, you have to add this to your pom.xml:
<dependency>
    <groupId>org.knowm.xchange</groupId>
    <artifactId>xchange-coinbasepro</artifactId>
    <version>5.0.12</version>
</dependency>
The second step is to update those properties in your application.properties:
# Exchange configuration.
cassandre.trading.bot.exchange.driver-class-name=org.knowm.xchange.coinbasepro.CoinbaseProExchange
cassandre.trading.bot.exchange.username=kucoin.cassandre.test@gmail.com
cassandre.trading.bot.exchange.passphrase=cassandre
cassandre.trading.bot.exchange.key=6054ad25365ac6000689a998
cassandre.trading.bot.exchange.secret=af080d55-afe3-47c9-8ec1-4b479fbcc5e7
For cassandre.trading.bot.exchange.driver-class-name, you have to set the main class inside the XChange library.
The other parameters username, passphrase, key andsecret are authentication parameters given by the Exchange when you will create your API access in your account.
Configuration examples
Kucoin
Add this dependency to your ̀€pom.xml:
<dependency>
    <groupId>org.knowm.xchange</groupId>
    <artifactId>xchange-kucoin</artifactId>
    <version>5.0.12</version>
</dependency>
and update your application.properties:
cassandre.trading.bot.exchange.driver-class-name=org.knowm.xchange.kucoin.KucoinExchange
Coinbase
Add this dependency to your pom.xml:
<dependency>
    <groupId>org.knowm.xchange</groupId>
    <artifactId>xchange-coinbasepro</artifactId>
    <version>5.0.12</version>
</dependency>
and update your application.properties:
cassandre.trading.bot.exchange.driver-class-name=org.knowm.xchange.coinbasepro.CoinbaseProExchange
Binance
Add this dependency to your pom.xml:
<dependency>
    <groupId>org.knowm.xchange</groupId>
    <artifactId>xchange-binance</artifactId>
    <version>5.0.12</version>
</dependency>
and update your application.properties:
cassandre.trading.bot.exchange.driver-class-name=org.knowm.xchange.binance.BinanceExchange
On Binance, you should not ask for data too often, or you will get a Way too much request weight used error, use those parameters in your application.properties:
cassandre.trading.bot.exchange.rates.account=PT30S
cassandre.trading.bot.exchange.rates.ticker=PT30S
cassandre.trading.bot.exchange.rates.trade=PT30S