In this post, I am going to explain how to monitor a local Cardano node’s mempool using Java or any JVM language. To do that we are going to use a small Java library called “Yaci” and we need an instance of Cardano node. What’s Yaci ? An opensource project which implements Cardano…

In this post, we will go through the steps required to invoke a Plutus smart contract from a Java application using Cardano Client Lib. Cardano-client-lib is a Java client library for Cardano blockchain. It simplifies the interaction with Cardano blockchain from Java applications. …

Cardano-client-lib is a Java client library for Cardano blockchain. It simplifies the interaction with Cardano blockchain from a Java application. Using this library, you can perform various types of transactions in a Java application. For example, you can do a transfer from one address to another, mint a token or…

This is the third part of cardano-client-lib series. In this post, I will explain how to create a new Native Token using Java. In this post also, we will be using Blockfrost backend api. You can check Part I and Part II of this series before continuing with this post …

In this post, we will see how you can create and post a transaction with metadata to Cardano network in a Java application using cardano-client-lib. Cardano-client-lib is a Java library which provides support to create, sign and submit transaction to the Cardano network. …

Update: For latest “Getting Started Guide”, you can check this tutorial https://cardano-client.bloxbean.com/docs/gettingstarted/simple-transfer The high level api used to build transaction in this post (from section #7) is no longer recommended. For flexibility, you should build the transactions using “Composable Functions api” mentioned in the above getting started guide. In this…

In this post, I am going to explain how to retrieve Blocks / Transactions / Events data from any Web3 compatible blockchain (Ethereum, Aion, …) and publish to Kafka topics in real-time. Kafka Connectors ? Kafka Connectors are ready to use components, which can be used to import data from external systems to…

In this post, I am going to explain how to use Spock Framework to unit test Java smart contract. Spock is a Groovy based testing framework and an alternative to the traditional JUnit framework. By making use of Groovy, Spock introduces new and expressive ways of testing Java applications. In…

Stack Traces are one of the most common things we run into while doing Java development. The stack trace provides more details when there is an exception during a method call. It contains all invocations from the start of a thread until the point it’s generated. …