Creating a Discord Bot with Discord4J + Spring Boot

Creating a Discord Bot with Discord4J + Spring Boot

Explore all the necessary steps for creating a Discord bot using the Discord4J library and Spring Boot. Discord4J is an open-source Java library that can primarily be used to quickly access the Discord Bot API. It heavily integrates with Project Reactor to provide a completely non-blocking reactive API.

1. Overview

Discord4J is an open-source Java library that can primarily be used to quickly access the Discord Bot API. It heavily integrates with Project Reactor to provide a completely non-blocking reactive API.

We'll use Discord4J in this tutorial to create a simple Discord bot capable of responding to a predefined command. We'll build the bot on top of Spring Boot to demonstrate how easy it would be to scale our bot across many other features enabled by Spring Boot.

When we're finished, this bot will be able to listen for a command called “!todo” and will print out a statically defined to-do list.

2. Create a Discord Application

For our bot to receive updates from Discord and post responses in channels, we'll need to create a Discord Application in the Discord Developer Portal and set it up to be a bot. This is a simple process. Since Discord allows the creation of multiple applications or bots under a single developer account, feel free to try this multiple times with different settings.

Here are the steps to create a new application:

  • Log in to the Discord Developer Portal
  • In the Applications tab, click “New Application”
  • Enter a name for our bot and click “Create”
  • Upload an App Icon and a description and click “Save Changes”

Now that an application exists, we simply need to add bot functionality to it. This will generate the bot token that Discord4J requires.

Here are the steps to transform an application into a bot:

  • In the Applications tab, select our application (if it is not already selected).
  • In the Bot tab, click “Add Bot” and confirm that we want to do it.

Now that our application has become a real bot, copy the token so that we can add it to our application properties. Be careful not to share this token publicly since someone else would be able to execute malicious code while impersonating our bot.

We're now ready to write some code!

spring-boot chatbot programming developer

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

Spring Boot Tutorials - Spring Boot Full Course

Spring Boot Tutorials | Full Course - What is Spring? Spring Boot is an open source Java-based framework used to create a Micro Service. Spring Boot contains a comprehensive infrastructure support for developing a micro service and enables you to develop enterprise-ready applications that you can “just run”.

Complete Spring Boot Tutorial | Spring Boot Crash Course

In this Spring boot tutorial, you will learn from Spring Boot development to deployment to PCF. Ways to create Spring Boot applications. Spring Beans and Dependency Injection (Writing REST End Points). Working Data (Data JPA). Exception Handling. Logging. Externalizing Configuration. Deployment to PCF

Things to know before getting your own chatbot- Custom Chatbot Development

This article gives you complete information on custom chatbots. We provide a complete understanding on chatbots and show a comparative analysis between platform chatbot and custom chatbot development

How long does it take to develop/build an app?

This article covers A-Z about the mobile and web app development process and answers your question on how long does it take to develop/build an app.

Developer Career Path: To Become a Team Lead or Stay a Developer?

For a developer, becoming a team leader can be a trap or open up opportunities for creating software. Two years ago, when I was a developer, ... by Oleg Sklyarov, Fullstack Developer at Skyeng company