In 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…
Read More Register Web Service 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 be discoverable by other Microservices. For a step by step series of video lessons, please check this page: Spring Boot Microservices and Spring Cloud. Create a New Spring Boot…
Read More Eureka Discovery Server TutorialIn this short tutorial, I am going to share with you how to enable CrossOrigin in a RESTful Web Service API built with Spring Boot, Spring MVC and which also has Spring Security enabled. Enable CrossOrigin for Specific Endpoint To enable cross origin AJAX HTTP request to a specific RESTful Web Service endpoint in our Rest Controller…
Read More CrossOrigin and CORS in RESTful Web ServiceIn 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 an overhead of doing DB configuration on your machine and without…
Read More Using H2 In-memory Database with Spring BootIn this tutorial, we will build a Spring Boot application which demonstrates how to 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…
Read More Spring Boot and MongoTemplate Tutorial with MongoDBIn this Spring MVC tutorial, you will learn how to implement pagination in your RESTful Web Services app built with Spring MVC. The code example below will demonstrate how to implement pagination to implement “Get a list of users” registered with our app feature. I assume you already have your Spring MVC RESTful Web Service…
Read More REST Pagination Tutorial with Spring MVCIn this Spring MVC tutorial, you will learn how to make your RESTful Web Service endpoint respond back with either XML or JSON representation. When the client application sends a request to our web service to get a Resource, like for example, User Details, it can provide a special HTTP Header that will request our…
Read More Return XML or JSON in Spring MVC Web ServiceIn this Spring MVC tutorial, you will learn how to use @PutMapping annotation in your RESTful Web Services application to be able to accept HTTP Put request containing a Request Body with JSON or XML payload, so that you can perform let’s say an update user details operation. So, let’s say you want to send…
Read More @PutMapping Example in Spring MVCIn this Spring MVC tutorial, you are going to learn how to use the @PostMapping annotation to make your RESTful Web Service Endpoint be able to handle HTTP Post request and read its JSON or XML body payload. Sending JSON in HTTP Post Request Let’s say we need to send the following JSON in our…
Read More @PostMapping and @RequestBody Example in Spring MVCIn this Spring MVC tutorial, you will learn how to use the @RequestParam annotation to read the URL Query request parameters in your Spring MVC Web Services application. I am also including a video tutorial here so you can see it in action. Let’s assume we have the following URL to your Web Service endpoint.…
Read More @RequestParam Example in Spring MVCIn this Spring MVC tutorial, you will learn how to use a @PathVariable parameter to read the path parameter value. I will also include here a video tutorial so you can see how to do it on video. Let’s say we have the following URL: http://localhost:8080/api/users/5jg8hf4ys9fit If we break the above URL down into smaller…
Read More @PathVariable Example in Spring MVCAlmost in every RESTful Web Service application, I have to do the DTO to Entity and then Entity to DTO conversion. DTO stands for Data Transfer Object and is a simple Plain Old Java Object which contains class properties and getters and settings methods for accessing those properties. In this blog post, I am going…
Read More DTO to Entity and Entity to DTO ConversionWith this Spring Boot tutorial, I am going to share with how to handle exceptions in your RESTful Web Service application build with Spring Boot. What If Exception Takes Place The good news is that if Exception takes place and your code does not handle it, Spring Boot will handle the Exception for you and will…
Read More Handle Exceptions in Spring Boot RESTful ServiceIt is extremely simple to add logging support to your RESTful Web Service application with Spring Boot. To use Spring Boot logging you do not really need to add any additional dependencies or libraries to your web app project other than the spring-boot-starter-web dependency of which is below. If you are working on a Spring Boot Web…
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