A multithreaded but simple to use library to create a Discord bot in Java.
<repository>
<id>javacord-repo</id>
<url>http://repo.bastian-oppermann.de</url>
</repository>
...
<dependency>
<groupId>de.btobastian.javacord</groupId>
<artifactId>javacord</artifactId>
<version>2.0.14</version>
<!-- This will use the shaded javacord which contains all required dependencies -->
<classifier>shaded</classifier>
</dependency>
<!-- A SLF4J comaptible logging framework. I would recommend to use logback -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.3</version>
</dependency>
If you never used maven before you should take a look at the setup tutorial:
For detailed information take a look at the wiki: Wiki
For those of you how don't use maven: Jenkins
Thanks to ketrwu (https://github.com/KennethWussmann).
The javadocs can be found here: JavaDocs
Thanks to ketrwu, too.
Creating a simple ping-pong bot:
package <package>;
import com.google.common.util.concurrent.FutureCallback;
import de.btobastian.javacord.entities.message.Message;
import de.btobastian.javacord.listener.message.MessageCreateListener;
/**
* A simple ping-pong bot.
*/
public class MyPingPongBot {
public MyPingPongBot(String token) {
// See "How to get the token" below
DiscordAPI api = Javacord.getApi(token, true);
// connect
api.connect(new FutureCallback<DiscordAPI>() {
@Override
public void onSuccess(DiscordAPI api) {
// register listener
api.registerListener(new MessageCreateListener() {
@Override
public void onMessageCreate(DiscordAPI api, Message message) {
// check the content of the message
if (message.getContent().equalsIgnoreCase("ping")) {
// reply to the message
message.reply("pong");
}
}
});
}
@Override
public void onFailure(Throwable t) {
t.printStackTrace();
}
});
}
}
More examples can be found in the wiki: Examples
1. Open https://discordapp.com/developers/applications/me and click on "New App".
2. Enter a name for your bot and click "Create App"
3. Click on "Create a Bot user"
4. Reveal the bot's token. This token is used to login your bot.
In order to add a bot to your server you need it's client id.
You can get your client id from the same page where you created it.
With this id you can create an invite link for your bot:
https://discordapp.com/api/oauth2/authorize?client_id=123456789&scope=bot&permissions=0
If you are the owner or admin of the server you can use this link to add your bot to your server. Otherwise you have to give the link to the server owner/admin and ask him to add your bot.
I would recommend to use sdcf4j in order to create commands. It provides a clean and simple way to create commands. A ping-pong command would be as easy as this:
public class PingCommand implements CommandExecutor {
@Command(aliases = {"!ping"}, description = "Pong!")
public String onCommand(String command, String[] args) {
return "Pong!";
}
}
Take a look at the sdcf4j wiki to find out how it works.