RESTful Web Services

In this tutorial, you will learn how to read HTTP Request Header in the Rest Controller class of your Spring Boot application. To read HTTP Request Header in Spring Boot REST application, we use @RequestHeader annotation. @RequestHeader(value=”Accept”) String acceptHeader To learn how to test if HTTP Header is received, read the tutorial about Testing HTTP Header…

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In this Swagger tutorial, I am going to share with you how to add Contact and API information to your RESTful Web Service documentation created with Swagger. When adding Swagger to our RESTful Web Service, we usually create a new configuration Java Class which is then annotated with @Configuration annotation. Below is an example of…

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In this tutorial, you will learn how to add Swagger or an OpenAPI support to your Spring Boot project so that you can start documenting your REST API. To be able to follow this tutorial you will need to have your REST API Spring Boot project created. If you do not have one, here is…

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In this tutorial, you will learn how to deal with an infinite recursion problem or circular reference, which occurs when you try to return an Object with Bidirectional Relationships in the HTTP response body. Infinite Recursion Problem Let’s look at an example that will cause an Infinite Recursion problem in our RESTful Web Service when we…

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This short tutorial will teach you how to roll back a database change using @Transactional annotation in your RESTful Web Service built with Spring Boot and JPA. Rollback with @Transactional Annotation Sometimes if an error occurs in our RESTful Web Service, we want to roll back the changes made. For changes to be rolled back…

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In this blog post, I am going to list commonly used POM.XML dependencies for building RESTful Web services with Spring Boot and Spring MVC. The list of below dependencies is not complete and will depend on the functionality you need your RESTful Web Services to support. But if you are building a simple REST API…

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The list of below video tutorials is a Quick Start to learning How to Build RESTful Web Services with Spring Framework. Spring Framework is large and there is so much to learn about it. And although there are so many tutorials on the Internet I still felt it would be helpful to create a series…

Read More RESTful Web Services with Spring Framework. Video Tutorials

This tutorial will teach you how to use the @Query annotation to run custom SQL queries. Spring Data JPA provides us with many ready-to-use query methods which allow us to perform basic CRUD(Create, Read, Update and Delete) operations. However, sometimes, even though we have this ready-to-use Query method, we still need to run a custom…

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In this tutorial on Rest Assured, I am going to share with you how to create a test case which sends HTTP Get Request and includes two Query String Request Parameters. Let’s assume we need to test a RESTful Web Service Endpoint which returns a list of users. The URL to our RESTful Web Service…

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In this tutorial, you will learn how to validate the request body of an HTTP Post request sent to a RESTful Web Service endpoint built with Spring Boot. Request Body JSON Let’s say you have a RESTful Web Service endpoint that accepts HTTP post requests with the following JSON payload: { “firstName”: “Sergey”, “lastName”: “Kargopolov”,…

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In this tutorial, you will learn how to make a method in your Rest Controller class return a custom HTTP status code. To return a specific HTTP status code from a Spring Controller method in your application, you can use the ResponseEntity class. ResponseEntity with HTTP Status Code Let’s assume we have a simple web…

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