In this tutorial, you will learn how to create a console-based Spring Boot application that you can run in the terminal window on your computer. You will also learn to pass command-line arguments to your Spring Boot console-based application. For more Spring Boot tutorials and video lessons check this page: Spring Boot tutorials and video lessons.…
Read More Spring Boot Console ApplicationIn this tutorial, you will learn how to use Declarative REST Client Feign to make HTTP Requests RESTful Web Services. You can use Feign client to make HTTP Requests to a registered with Eureka Discovery Service Microservice or to an external RESTful Web Service. For a step-by-step series of video lessons, please check this page:…
Read More Spring Feign Client HTTP Request ExampleIn this Spring Boot tutorial, you will learn how to implement User Authentication(User Login) functionality for your RESTful Web Service application. There is also a step-by-step video demonstration on how to do User Authentication available here. The user authentication functionality we are going to implement in this tutorial will work the following way: A user…
Read More User Authentication – Spring Boot, Spring Security, JWTIn this tutorial, you will learn how to use Spring Boot Profiles. You can use Spring Boot Profile functionality when providing application configuration for a specific environment. For example, when your application runs in a development environment, then your application will use a specific for that environment application.properties file. And when you are ready to…
Read More Spring Boot Profiles TutorialIn this tutorial, you will learn how to create and run your own Zuul API Gateway and how to register with it more than one Spring Boot Microservice. To be able to follow this tutorial you need to know how to create simple RESTful Web Services with Spring Boot. If you need to review that,…
Read More Zuul API Gateway TutorialIn this tutorial, you will learn how to start up your own Spring Cloud API Gateway and how to make it route HTTP Requests sent to a registered with Eureka Discovery Server Microservice. I will also show you how to register more than one Spring Boot Microservice with Eureka and how to configure your Spring…
Read More Spring Cloud API Gateway TutorialIn this tutorial, you will learn how to create a Web Service or a Microservice and how to make it register with Eureka Discovery Server. For a step-by-step series of video lessons, please check this page: Spring Boot Microservices and Spring Cloud. Start Eureka Discovery Server To be able to follow this tutorial, you will…
Read More Register Microservice(Eureka Client) with Eureka ServerIn this tutorial, you will learn how to startup your own Eureka Discovery Server, so that the Microservices you build can register with this server and become discoverable by other Microservices. To learn how to setup Eureka Cluster, read the Eureka Server Cluster Setup tutorial. For a step by step series of video lessons, please…
Read More Eureka Discovery Server TutorialSpring Boot has a nice feature that enables the application to automatically restart when you change your Java code. This automatic restart of your application is often called Hot Swap. Spring Boot Dev Tools Dependency To enable your Spring Boot application to automatically restart when you make a change to your Java code, add the…
Read More Spring Boot Hot Swap or Automatic RestartIn this short Spring Boot tutorial, you will learn how to pass command-line arguments to your Spring Boot application. Passing Command-Line Arguments To pass command line arguments to your Spring Boot app when running it with Maven use the -Dspring-boot.run.arguments. In the below code example, I will pass two command-line arguments: firstName and lastName. mvn spring-boot:run…
Read More Pass Command-Line Arguments to Spring Boot ApplicationWith this tutorial, I am going to share with you how to convert one Java Model Class into another. You might need to use it when converting a DTO(Data Transfer Object) to an Entity bean and back from Entity bean to a DTO. And also when converting a DTO to a REST Model Object which…
Read More Java Objects Mapping with ModelMapperIn this JUnit 5 and Rest Assured tutorial, I am going to share with you how to add JUnit 5 and Rest Assured support to your Spring Boot project. It will be more than that actually. This tutorial will cover: Add JUnit 5 and Rest Assured to Spring Boot Project, Create a new JUnit 5…
Read More Create a JUnit 5 Test Case with Rest Assured. Video Tutorial.In this tutorial, we will create a Spring Boot application which demonstrates how we can add and use the H2 in-memory database in our application. You will learn how an in-memory database like H2 can be used to develop a Spring boot application without the overhead of doing DB configuration on your machine and without…
Read More Using H2 In-memory Database in Spring BootThis tutorial will teach you how to build a Spring Boot application and access data in a MongoDB database using the MongoTemplate APIs. For MongoDB, we will use mLab, which provides MongoDB Database as a Service platform so that you don’t even have to install a MongoDB database on your computer. Also, at the end…
Read More Spring Boot and MongoTemplate Tutorial with MongoDBIn this REST Assured tutorial, you will learn how easy it is to test and validate RESTful APIs. REST Assured provides excellent HTTP support, explicit verbs, and actions. We will use REST Assured in this tutorial and the Hamcrest library to perform assertions. REST Assured Maven Dependencies Before laying down examples for this library, we need…
Read More REST Assured Tutorial