Category: Programming

Learn how to implement SpringBoot roles and privileges with Granted Authorities, design secure REST API routes, and restrict access using hasAuthority().

Learn how to implement SpringBoot roles and privileges with a fine-grained data model, REST API endpoints, user privilege assignments, and role-based access management.

Learn how to implement SpringBoot Roles and Privileges in InventoryMS by defining standard roles, responsibilities, and privileges for inventory, sales, warehouse, procurement, finance, and more.

Learn how to protect React routes with SpringBoot authentication using an Auth Context, Protected Route component, and login/logout state management

Learn how to build the InventoryMS Complete Application with React UI, Vite, CoreUI, SpringBoot API integration, authentication, CRUD, routing, and Redux.

Understand the React/SpringBoot Authentication Flow, including user registration, login, protected resources, request interceptors, local storage, and logout.

Learn React SpringBoot Authentication by implementing user registration, login, password handling, sessions, and authentication components in React and Spring Boot.

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Learn how to Authenticate From React to Spring Boot by configuring Spring Security, UserDetailsService, CORS, Basic Authentication, and Axios.

Learn how to build the InventoryMS Complete Application with Spring Boot, MySQL, Spring Security, JPA Auditing, Swagger, JWT authentication, and roles and privileges.

Learn how to filter a Select list by another Select list in React using state, useEffect, event handlers, and filtered subcategories.

Learn how to implement pagination in a React application using Material UI, including page states, row limits, table slicing, and TablePagination. TL;DR Use page and …

Learn Creational Patterns in Software Design Patterns, including Factory, Singleton, Builder, and Prototype patterns with practical code examples.

Learn how to implement Role-Based Authorization in Spring Boot using Spring Security, including role management, user roles, authorities, access restrictions, and access denied pages.

Learn about Build Tools, including Maven, Gradle, sbt, Ant, CMake, and Mill, and understand how to choose a build tool for your application.

Learn what Github Action is and how to set it up with a Spring Boot application, Maven workflow, Super Linter, and multiple operating systems.

Learn how to publish package to NPM step by step, from creating and testing a Node package to publishing regular and scoped packages. TL;DR Create …

Learn how to integrate Admin LTE with Angular by copying the template files, adding CSS and JS links, creating components, and fixing image links.

Learn how to deploy SpringBoot Application to Kubernetes using Minikube and a deployment YAML file, create a Docker image, configure a service, and test the …

Learn how to setup Kubernetes locally with Minikube, build a SpringBoot application image, create a deployment and service, and access the Kubernetes dashboard. TL;DR Learn …

Learn how to implement pagination in Spring Boot with Thymeleaf, add page navigation, and combine pagination with sorting using Spring Data JPA. TL;DR Add First, …

Learn how to implement pagination in Spring Boot with Thymeleaf and JpaRepository, display page numbers, and retrieve records one page at a time.

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Learn how to deploy Spring Boot to Kubernetes using Minikube, Docker, Kubernetes deployments, services, and practical testing steps.

Learn how to solve Queen’s Attack II on HackerRank with a simple approach for calculating attackable and blocked cells using Python. This is a simple …

In this step by step tutorial, you will learn how to secure your REST API endpoints using Auth0. Create a NestJs Application Add Two More …

This is Season 1 of building a complete application in ASP.NET C# using SQL Lite. All the parts are provided below: Part 1 –  Introduction …

In this tutorial we would build a complete application with ASP.NET and C# Programming Language. It would be a Hospital Management System – HospitalMS. All …

In this tutorial, you will learn how to setup and use the top 5 UI components in Angular Material, Primeng and Bootstrap. I have decided …

This is a beginner tutorial on how to build and deploy microservices using Docker-Compose. But first, we’ll learn what docker-compose is and what it’s used …

In this tutorial, you will learn step by step how to Dockerize your Spring Boot application. We would create a Docker container of a Spring …

I would show you several way you can pass variables from one component to another in Angular. We would cover the following;   Set up …

In this tutorial, you will learn about GraphQL and how to use it. This would be useful to you if you have a basic knowledge …

In this tutorial, you will learn how to build a WordPress plugin from the scratch! This would be a practical tutorial with all the code …

In this tutorial, you would learn how to use layout and content page in a Spring application. This is also called Master and Content page …

We’ll outline the components of a Messaging Architecture based on RabbitMQ. We would examine terms including: Producer, Consumer, Exchanger, Routing Key, Binding etc. See tutorial …

Thanks for visiting my page! This article outlines my activities during my 1 year National Youth Service Corps(NYSC) assignment in Nigeria. Please enjoy reading and …

In this tutorial, we would learn how to install and setup Failover cluster in Windows Server 2019 step by step. In the previous tutorial, we …

In this tutorial, we would learn how to configure iSCSI disks in Windows Server 2019 and setup a iSCSI target server. The following would be …

In Part 1, we set up our a domain and configured a domain controller. In this part, we would look at creating user, configuring network …

In this step by step, I will teach you how to setup active directory directory services with a domain using VirtualBox. The demos are based …

If you would like to learn Angular while working on an interesting project, then you are welcome! This would be a 6-part procedure but 11-video …

In this tutorial, I would take you through building a simple quiz application in React. As we go through, I would be explaining the pieces …

This is  Part two of out Quiz App Tutorial in React. Please see Part 1 if you have not. In this part, we would put …

In this tutorial, I would teach you how to create a complete DevOps pipeline for free. We would push a SpringBoot application to Github, then …

We would learn about 7 database patterns for Microservices. The include: Database per Service Shared database Saga API Composition CQRS Domain event Event sourcing   …

If you remember from Tutorial 2, we stored our password in MySQL database in plain text. Now, this is not ideal way since plain text …

In this Tutorial, would see how to add custom Login Form. So instead of using the generated form we’ll build one. You can find Tutorials …

This tutorial follows from Part 1. In this tutorial, you would learn how to call the PHP API from a html page. We would use …

In this article, I would explain step by step, how to enable Auditing in Spring Boot application. We would consider the following: Introduction to Auditing …

Good to know you’ve completed Parts 1 to 16! Thumbs up to you! Otherwise, you can see the links below and follow. Now we’ll continue …

We would continue from Part 21. You will learn how to update a record and delete a record. You will also learn about CascadeTypes and …

I’m happy, that finally we have a complete tutorial that addresses the challenges faced by many programmers. Entity relationships(@OneToMany and @ManyToOne). So everything about relationships …

First let me say that if you have gotten to this point successfully, congrats! and thumbs up to you! You’ll sure be an expert if …

Now we continue with Part 13. We are still working with the GET requests Part 1 to 7 – Setting Up Part 8 to 12 …

If you are a programmer, then I have some good news for you! This applies if you are a Software/Application Developer or Engineer. As you …

I would teach you how to work with Spring Security. Tutorial 1 – Introduction to Spring Security  Tutorial 2 – Storing Login Details in MySQL …

In this lesson, I would explain to you how relationships works in hibernate. Then I would give you a practical as well. We would be …

I would teach you how to make two microservices communicate. This would be step by step. You can watch the video as well. We assume …

1. Introduction to Thymeleaf (Video) In this walk-through, we would build an application to store student records. Users would be able to: access list of …

This is Similar to the Spring with MVC Procedure Create a new Starter project. Add Web, jpa and H2 dependencies Examine the pom.xml Create a …

This procedure teaches you how to perform CRUD operation (Insert, Update, Select and Delete) in Spring MVC. Source codes is included at the end of …

A Receiver Operating Characteristics (ROC) Curve is used to describe the trade-off between correct classifications and wrong classifications. The ROC curve displays a plot of …

You can find Question 1 to 10 here. So let’s get started! 11. What is Multivariate Linear Regression? This is a type of regression were …

I’m providing set to data science question and answers. The answers would be clear and brief for anyone to understand no matter your field. However, …

This tutorial would cover Exploratory Factor Analysis. We would cover the following sub-topics: What is Factor Analysis(FA) Difference between Exploratory FA and Confirmatory FA Application …

Bayesian Inference is simply a way of making statistical inference by applying Bayes’ Theorem. Assuming there is a particular hypothesis H. Let the probability of …

In this short write-up, I would explain to you these important trends in IT. The interesting thing is that they are actually very simple concepts …

I’m going to explain microservices to you based on the following sections: What are Microservices? Benefits of Microservices How to Create Microservices Challenges of Microservices …

Bayes Rule is based on Conditional Probability which we have been discussing in the previous 3 lessons. Conditional Probability – Basics Conditional Probability – Multiplication …

In the previous lesson(Introduction to Bayes’ Rule), we saw how Bayes’ Rule can be applied to medical diagnosis. So in this chapter, we would see …

In this short lesson we would understand how to use the Multiplication Law in Conditional Probability. You may want to review Basics of Conditional Probability. …

In this lesson, we would examine Law of Total Probability. We looked Multiplication Law previously. I would state this law. Then give an explanation. Finally …

I assume you have a basic knowledge of Probability. For example, if there a 3 red ball and 2 blue balls in a bag and …

We cover the following Introduction to Ford-Fulkerson Algorithm Introduction to Residual Graphs About Residual Graphs Augmenting Paths in Residual Graph Using Bottleneck 1. Introduction to …

Pointers in C++ is one of the core concepts that you need to learn. This is because it is a feature that helps you understand …

I would start with a brief review of SVD and then gradually ease into Higher Order SVD.  As usual, I would try to make it …

Singular Value Decomposition (SVD) is a dimensionality reduction technique similar to PCA but more effective than PCA. It is considered as factorization of a data …

AVL trees are self-balancing Binary Search Trees (BST) that was invented by Adelson, Velski and Landis. Let’s consider the following: AVL Tree Balance Factor How …

We would go through a simple tutorial on how to build an API in Visual Studio (Step by Step) using ASP.NET C#. Before we go …

Hello, good to see you here! Its good to know that you want to learn Java and be sure that you would find all you …

You can watch the video of this explanation here:  Video Many person in the field of IT don’t get as productive as they should be …

Coding is fun! Have you heard this expression sometimes? Another one is, ‘coding is for the noble-minded’ or ‘coding is for the great minds’ or …

In this blog, I am going to address some of the typical problems encountered by  programmers who try to connect Netbeans to the MS Access …

This is an assignment given to MSc. Students of the University of Port Harcourt as well as the Rivers State University of Science and Technology …