In this post we will be developing a full-blown CRUD application using Spring Boot, AngularJS, Spring Data, JPA/Hibernate and MySQL, learning the concepts in details along the way. This application can as well serve as a base/starting point for your own application. In addition, we will also use the notion of profiles to deploy the application into two different databases [H2 & MySQL] to emulate the local and production environment, to be more realistic. Let’s get going. Following technologies stack being used: Let’s Begin. 2. Dependency Management [pom.xml] spring-boot-starter-parent : In most of the cases[unless imported], your maven project POM will simply inherit from the spring-boot-starter-parent project. The spring-boot-starter-parent provides useful Maven defaults, provides dependency-management section so that you can omit version tags for dependencies you would need for your own project. Once inherited from spring-boot-starter-parent, you would declare dependencies to one or more “Starters” jars. spring-boot-starter-web : Provides typical WEB MVC + Embedded container support. spring-boot-starter-freemarker : Provides freemarker template support. We will be using freemarker in this example. spring-boot-starter-data-jpa : Provides spring-data setup using JPA abstraction. Since we are talking about fast-development using spring-boot, spring-data would certainly save time compare to traditional DAO/Creteria/Query manual setup. HikariCP : Provides Hikari connection pooling support. We could have as well used Tomcat datapooling. Common DBCP is usually not recommended for performance reasons. h2: Provides H2 database support. Please note that it is used here just to demonstrate the real-life scenarios where your local setup uses one database while the one on production might be altogether a different database.Additionally, we are deliberately using a different version of h2, just to demonstrate...
Simple and Complete Module-based Laravel API Dec 3 I’m a big fan of writing module-based software, but I’m not so fond of relying on third-party packages for trivial things as they could always prevent you from upgrading. For the two years I have been writing module-based software with Laravel and I’m very happy with the result. The deciding factor that drives me towards module-based software is the possibility for continuous improvement. Imagine you setup a project structure and 6 months later you decide that you made a lot of mistakes. It’s usually not easy to just improve the architecture without affecting the 6 months of existing code. There are two major points that I’ve noticed while analyzing this subject: you either have a standard in your whole project and stick with it or you modularize it and improve module by module. Some people prefer to work with standards at all costs, even if that means being stuck with a standard that you no longer enjoy. Personally, I prefer continuous improvement. If the 20th module that I wrote is 100% different than the 1st one, I don’t mind. If I ever need to go back to Module 1 for a bugfix or refactoring, I can improve it towards the new standards being used by the latest modules. If, like me, you would like to work on a module-based Laravel Application and avoid adding unnecessary third-party dependency to your project, here is how I did it. 1- Route Service Provider Laravel Router system is kind of the entrypoint for the application. The first thing that requires changing is the default RouteServiceProvider.php that should...
Virtually every industry is tapping into the mobile market to bring new and innovative solutions for users, and the healthcare industry is no different. In fact, more and more people have come to rely on the remote services healthcare apps are offering during this COVID-19 reality we’re living in. In this article, we’re going to take a look at how far healthcare mobile app development has come, what kind of technology new apps are leveraging, and how you can develop your own health app. Chapter #1: How Mobile Apps Are Transforming Healthcare In today’s digital era, we’re embracing smartphone technology as a way of solving our problems. It’s become an integral part of our lives which is constantly evolving as new technologies emerge. The healthcare mobile app industry in particular has seen steady growth over the years by offering a wealth of convenient services for both patients and health care physicians. In fact, the mobile health market is expected to exceed $300 billion by 2025. And due to the pandemic, health apps have seen a download increase of 25%. In short, if you’re looking to tap into the mobile health market, you’re in a good place. 1.1 Technology in Healthcare Apps So what can the technology in mobile health do? Health apps can do quite a bit nowadays. Health management apps can record, track, and collect data, like blood pressure, glucose levels, our physical activity, heart rate, and so much more. Mobile technology is being used as a diagnostic tool. We can use our mobile devices to test for certain infections or diseases. General health and wellness apps can...
Hello friends, welcome back to my blog. Today in this blog post, I am going to show you, Reactjs Bootstrap 4 Project Dashboard. Reactjs Bootstrap 4 Reactjs Tutorial Videos For reactjs new comers, please check the below link: Reactjs Basic Tutorials Friends now I proceed onwards and here is the working code snippet for Reactjs Bootstrap 4 Project Dashboard and please use this carefully to avoid the mistakes: 1. Firstly, we need fresh reactjs setup and for that, we need to run below commands into out terminal and also we should have latest node version installed on our system: npx create-react-app reacttepmate cd reacttepmate npm start 2. Now we need to run below commands into our project terminal to get bootstrap and related modules into our reactjs application: npm install bootstrap --save npm start //For start project again 3. Finally for the main output, we need to add below code into our reacttemplate/src/App.js file or if you have fresh setup then you can replace reacttemplate/src/App.js file code with below code: import React from 'react'; import './App.css'; import 'bootstrap/dist/css/bootstrap.min.css'; class Home extends React.Component { render() { return ( <div className="maincontainer"> <div class="container"> <div class="row"> <div class="col-xl-3 col-md-6"> <div class="card bg-pattern"> <div class="card-body"> <div class="float-right"> <i class="fa fa-archive text-primary h4 ml-3"></i> </div> <h5 class="font-size-20 mt-0 pt-1">24</h5> <p class="text-muted mb-0">Total Projects</p> </div> </div> </div> <div class="col-xl-3 col-md-6"> <div class="card bg-pattern"> <div class="card-body"> <div class="float-right"> <i class="fa fa-th text-primary h4 ml-3"></i> </div> <h5 class="font-size-20 mt-0 pt-1">18</h5> <p class="text-muted mb-0">Completed Projects</p> </div> </div> </div> <div class="col-xl-3 col-md-6"> <div class="card bg-pattern"> <div class="card-body"> <div class="float-right"> <i class="fa fa-file text-primary h4 ml-3"></i> </div> <h5 class="font-size-20 mt-0 pt-1">06</h5>...
Server performance problems can happen for many different reasons. Memory issues, slow database requests, and too few machines are just some of them. I witnessed my fair share of problems and learned a few tricks along the way. In this article, I’ll tell you about 10 types of issues that can cause performance problems in your server. That’s not to say I categorized all possible problem types, but these might give you some ideas and nudge you in the right direction next time you’re digging into perf matters. Here they are, in no particular order: 1. Slow database calls A fast interaction with your database is probably the single most important thing for good performance. At least in most applications. Unfortunately, there are lots of things that can go wrong, and even innocent-looking implementations can cause problems. Here are some issues that can originate slow database requests and ruin your application’s performance: var adults = dbContext.Users.Where(user => user.Age >= 18); var adults = dbContext.Users.Where(user => user.Age >= 18).ToList(); var count = users.Count; The hardest part of solving these problems is to identify them in the first place. There are many tools to see how your requests perform in production. Usually, the database itself will be able to show slow queries, scaling problems, network reaching its limits, etc. APM solutions like Application Insights show this very well. It’s also pretty simple to add request execution time to your logs and build queries and automation around that. 2. Memory Pressure One of the most common offenders in high-throughput servers is memory pressure. In this state, the garbage collector doesn’t keep up...
We have an abundance of technologies and web & mobile app development languages surrounding us, but foremost call lies in selecting the one that reverberates with your business requirements. If we go with the latest statistics, the language that is making a huge pace and also covering the landscape is AngularJS. Well, being in the latest era, if you are wasting your much time in developing a web & mobile application than just stop right now and opt Angular JS as your first choice. If we define AngularJS in technical terms that Angular JS is one of the leading open source JavaScript frameworks powered by Google. The main Motto behind its introduction is to simplify the development of dynamic & web apps & also widely uses for restructuring the JavaScript Code. So, Let’s Have A Proper Overview Of AngularJS: Let’s understand Angular JS with appropriate briefing… Powered by Google in 2009, it is one of the most widely used JavaScript frameworks. However, it doesn’t arrive with better accompaniments, but eventually; it helps make the development process very simplified as it is easy to use. It helps in gathering data and also helps to keep developers at bay from adding extra source code and eliminates extra code in order to maintain the flexibility of the code. Angular JS works on many building blocks such as, Guidelines to expand HTML characteristic, Directives to accumulate data into HTML, Error and event handling, Unit testing, Routing and binding, Controllers and HTML rendering Apart from the aforesaid basics, it assists to influence J-query DOM libraries. Specifically, Angular JS permits developers to increase the functionality...
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