You might have heard about GraphQL and how Facebook uses GraphQL in their mobile applications. In this blog, I will show you how to implement GraphQL in a Spring Boot application and let’s see what kind of magic does GraphQL provides. Why GraphQL? If you do not […]Continue reading
1. JdbcTemplate Introduction If we want to perform CRUD operations on a relational database the Spring ecosystem provides Spring Data JPA and Spring Support for JDBC. Spring Support for JDBC focuses on the JdbcTemplate class, which is internally based on the JDBC API of the Java SDK. Anyone who has ever worked with the JDBC […]Continue reading
Spring Framework 5 introduces WebClient, a component in the new Web Reactive framework that helps build reactive and non-blocking web applications. In web applications, a common requirement is to make HTTP calls to other services. Prior to Spring 5, there was RestTemplate for client-side HTTP access. RestTemplate, which is part of the Spring MVC project, […]Continue reading
When developing Spring Boot applications, you need to tell the Spring Framework where to look for Spring components. Using component scan is one method of asking Spring to detect Spring managed components. Spring needs the information to locate and register all the Spring components with the application context when the application starts. Spring can auto […]Continue reading
Introduction I’m quickly becoming a fan of using CircleCI for CI builds. I’m finding that CircleCI is a very powerful platform. Recently, I configured CircleCI to build a Spring Boot Microservice. The microservice was generated by JHipster. CircleCI is a online resource which uses Docker containers to run your CI builds. Since your build is […]Continue reading
In this tutorial, we will be building a demo web application for a Dog Rescue organization that uses JdbcTemplate and Thymeleaf. For this example, we will be using a MySQL database. However, this example is not limited to MySQL and the database could be swapped out for another type with ease. You can browse and […]Continue reading
Recently we’ve seen a rise in popularity of NoSQL databases. MongoDB has rapidly gained popularity in the enterprise and the Spring community. While developing and testing Spring Boot applications with MongoDB as the data store, it is common to use the lightweight Embedded MongoDB rather than running a full-fledged server. As the embedded MongoDB runs […]Continue reading
The Spring Boot makes developing RESTful services ridiculously easy, and using Swagger makes documenting your RESTful services much easier. Building a back-end API layer introduces a whole new area of challenges that goes beyond implementing just endpoints. You now have clients which will now be using your API. Your clients will need to know how […]Continue reading
When developing enterprise applications, Spring programmers typically prefer writing data-centric code against a lightweight in-memory database, such as H2 rather than running an enterprise database server such as Oracle, or MySQL. Out of the box, Spring Boot is very easy to use with the H2 Database. In-memory databases are useful in the early development stages […]Continue reading
This is part 6 of the tutorial series for building a web application using Spring Boot. In this post, we look at adding a DAO Authentication provider for Spring Security. We started off with the first part by creating our Spring project using the Spring Initializr. In part 2, we rendered a web page using […]Continue reading
