Table of Contents Introduction Prerequisites Application Properties Producer Consumer Configuration Spring Boot Main Class Testing Work Queues Task Queues Source Code Introduction Here in this example I am going to show you how to build work queues or task queues using Spring Boot framework and RabbitMQ broker. Work queues are used to distribute time-consuming tasks…

Table of Contents Introduction Prerequisites Include Non-classpath Jars In Gradle Script Introduction Here in this example I am going to tell you how to include non-classpath jars in gradle based Java project. You may need to include non-classpath jar files in order to make your application run. Non-classpath jars are those jar files which are not included in your classpath through dependency…

Table of Contents Introduction Prerequisites CRUD Application Using CodeIngiter 4 and MongoBD MongoDB Config MongoDB Library Model Class Controller Class Views List Records Style Create Record Update Record Route Config Testing CodeIgniter 4 MongoDB CRUD Example Source Code Introduction In this example I am going to build CodeIgniter 4 MongoDB CRUD example. CRUD is an…

Table of Contents Introduction Why do you need to create Gradle project in CLI Prerequisites Create Gradle Project in CLI Introduction Here I am going to show you how to create a new Gradle in CLI (command line interface). Command line interface is basically a command prompt in Windows system and Shell terminal in Unix…

Table of Contents Introduction Why Need To Reduce Size Other Tools Prerequisites Project Directory Reduce Image Size Testing Image Quality After Reducing Image Size Original Images Scaled Images Optimized Images Source Code Introduction In this tutorial I will show you how to reduce image size using Python program. I am using Pillow package for reducing…

Table of Contents Introduction Prerequisites Project Setup Install okta-auth-js Service Auth Service Token Service Auth Guard Components Implementing Okta Auth Role Based Access Environment Variables App Modules Routing Module Token Service Auth Service Auth Guard Expired Component Unauthorized Component Login Component App Component Dashboard Component Protected Component Update Page Testing Okta SSO Role Based Access…

Table of Contents Introduction Prerequisites Project Setup Application Properties Producer Consumer Configuration Spring Boot RabbitMQ Main Class Testing Producer Consumer Application Source Code Introduction In this tutorial I will show you how to build producer consumer example using Spring Boot and RabbitMQ. This is also called point-to-point messaging model as there are only one producer…

Table of Contents Introduction Why Does 404 Error Occur Solution Introduction Here in this tutorial I am going to show you how to redirect to context path for 404 error in Angular Spring Boot application. Context path basically is the same path for home page or root URL. It is assumed that your frontend application…

Introduction Here I am going to tell you how to setup multiple environments for Angular applications. Multiple environments are required for your Angular application when you want to ensure the stability and integrity of the application when it goes live on the production environment where your application’s end users access it. Your application’s development workspace…

Problem Let’s say you are starting your Spring Boot application and your (Spring Boot) application is trying to connect to vhost (virtual host) ‘xyz’ that does not exist in RabbitMQ server. So, you are getting error – access to vhost ‘xyz’ refused for use ‘guest’. By default, the user which is used to connect to RabbitMQ is ‘guest’….

What is integrity attribute? You might have seen the integrity attribute as well as crossorigin attribute in web page source code. The integrity and crossorigin attributes are used in the <script> and <link> tags. This is also called subresource integrity because it is included into the third party resources which are parts of the HTML…

Problem Here I am going to tell you how you can solve the problem when you try to run Java main class in Spring Boot application from IntellijIDEA. The actual error you would find as given below: