programming

Host a wasm module on Raspberry Pi easily Part 1

Reading Time: 5 minutes In this series of WebAssembly, I tell you about wasm and some useful CLI to have fun with wasm. WebAssembly is an open standard that defines a portable binary code format for executable programs, and a corresponding textual representation for interactions between such programs and their hosts. More than 20 companies reportedly use WebAssembly in their tech stacks, including Backend, Foretag, and Cubbit. C++, C, Rust, Blazor, and Yew Framework are some of the popular tools that can Continue Reading

Reading Avro files using Apache Flink

Reading Time: 2 minutes In this blog, we will see how to read the Avro files using Flink. Before reading the files, let’s get an overview of Flink. There are two types of processing – batch and real-time. Batch Processing: Processing based on the data collected over time. Real-time Processing: Processing based on immediate data for an instant result. Real-time processing is in demand and Apache Flink is the Continue Reading

Reactive Streams with JAVA 9

Reading Time: 5 minutes With the introduction of Java 9, Java community has started to show its support directly towards Reactive streams, which was earlier used by leveraging third-party libraries. Please visit my earlier blog on Reactive streams to understand the basic ideologies which are working behind it like the push-pull model or backpressure. As a part of this blog, we will explore how we can leverage the same Continue Reading

Getting Started with Vault

Reading Time: 3 minutes HashiCorp Vault is a secret management tool which provides a secure and reliable way to store secrets like passwords, access token, secret API key etc.

There are applications that need to interact with third party services and for that it needs various credentials. There are scenarios in which we need different credentials to process different requests. So, where will you store them? Can you really hard-code them and publish them to your sub-versioning tool? Ofcourse not. This is not a recommendable approach.

Create your first messaging application with RabbitMQ

Reading Time: 3 minutes What is RabbitMQ and Why we should use it? We often get this question in our mind when we look to any project and see RabbitMQ in its technical stack. So, this blog will give you a brief introduction to RabbitMQ. RabbitMQ is a message-broker whose basic functionality is to accept and forward the message. It is an open-source enterprise messaging system modeled on the Advanced Continue Reading

First steps to build Spring Boot Application with Couchbase

Reading Time: 2 minutes As the name of the blog suggests, we will be taking the first steps to build a simple application from scratch using Couchbase as a database and spring -boot as a framework. Let’s get started. You can create a starter maven project using this link. Add Web, Lombok and Couchbase dependencies. The pom.xml should look like: <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.3.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> Continue Reading

Lagom Message Broker API Testing

Reading Time: 3 minutes Many of us have been working with Lagom, so I will skip telling about Lagom. Let’s just quickly go through the  important APIs that Lagom provides: Service API Message Broker API Pesistence API In this blog, we will see how we can test the Message Broker API provided by Lagom. But before doing that let’s just briefly see what this API provides! Lagom’s Message Broker Continue Reading