QubicJ: Java Infrastructure for the Qubic Network Is Now Live

Java developers, the gateway to Qubic development is here.

QubicJ - the Java infrastructure for the Qubic network - is now fully live. Whether you’re building applications, automating transactions, or interacting with Qubic’s core systems, QubicJ makes it all possible - without needing deep protocol knowledge.

QubicJ: A Qubic Grants Program Success Story

QubicJ was one of the successful projects from round one of the Qubic Grants Program. The goal? To create a Java library that allows developers to interact with Qubic easily, without needing to work directly with raw TCP calls.

With QubicJ now live, Java developers can build on Qubic.

What QubicJ Does

QubicJ provides a fully functional Java interface for interacting with the Qubic network. Instead of manually handling API calls, developers can now work with pre-built Java methods that simplify key tasks.

Key Features

• Node Pooling → Automatically select a healthy node.

• Client API → Seamlessly interact with the Qubic nodes.

• Transaction Handling → Automate Qubic transactions with Java.

• Wallet Management → qubicj-shell provides a full command line wallet. 

• Smart Contract Support → Execute and manage Qubic-based smart contract interactions

• QX Integration → Work directly with Qubic’s decentralised exchange.

QubicJ eliminates the complexity of raw API calls and network interactions, giving Java developers a clean, intuitive framework to build with.

Getting Started with QubicJ

Installation – Clone the repository from GitLab:

bash

git clone https://gitlab.com/qubic-contributions/qubicj.git

For using the library in your own project you can get the dependency from maven central:

<dependency>

<groupId>at.qubic</groupId>

<artifactId>qubicj-computor-api</artifactId>

<version>1.5.0</version>

</dependency>

Basic Usage – Example of using QubicJ to interact with the network:

java

public class Main {

    public static void main(String[] args) {

      Node node = new Node("1.2.3.4", 21841);

      TickInfo info = node.getCurrentTickInfo().block();

      System.out.println("Latest tick: " + info.getTick());

    }

}

Full Documentation – Explore all available methods and integration options.

Now, Java developers can build Qubic-powered applications without dealing with raw TCP interactions.

How QubicJ Benefits Qubic

Developer tools like QubicJ drive network growth. By making Qubic more accessible to Java developers, QubicJ plays a key role in expanding adoption.

• Lowering the barrier to entry → Java developers can start building with Qubic without needing deep blockchain expertise.

• Encouraging new applications → More accessible tools lead to more Qubic-powered projects.

• Boosting adoption → The simpler it is to develop, the more builders will contribute to the ecosystem.

• Strengthening integrations → QubicJ allows Java-based platforms to interact with Qubic, opening doors to wider adoption.

Who Built QubicJ?

QubicJ was developed by Mio, a software engineer passionate about blockchain development and Java-based infrastructure.

Mio has been an active contributor to Qubic, working on:

• Java-based integrations → Helping expand Qubic’s accessibility for Java developers.

• Network interaction improvements → Ensuring smooth and efficient RPC communication.

• Building QubicJ from the ground up → Creating a fully functional Java library for Qubic.

QubicJ is his contribution to making Qubic more accessible, allowing Java developers to easily build applications and interact with the network.

Already Live. Already Improving.

QubicJ is fully live and ready for developers and the library will continue to receive updates, optimisations, and new features based on developer feedback and ecosystem needs.

Want to contribute? Found an issue? Join the QubicJ development discussions on GitLab.

GitLab Repository – Report issues, request features, or contribute to the codebase.

Final Thoughts

A strong developer ecosystem is key to Qubic’s long-term success. QubicJ makes Java integration simple, efficient, and powerful, allowing more developers to build, innovate, and expand the network.

This is just the beginning. More improvements, refinements, and optimisations are on the way.

Try QubicJ and start building on Qubic with Java.

How do you see QubiJ bringing more developers to Qubic? Join the discussion and share your thoughts in the Qubic Discord and Telegram.

Developer Grants Available

Do you have a project idea that could support the growth of the Qubic network? Qubic is actively seeking developers to help us grow our ecosystem. Read more about the Qubic Grants Program and how to apply for a grant. 

Please note: The Qubic Grants Program is not currently accepting applications. There will be an announcement when the next grant period opens.