Springframework

12. Adding GIT release information

In the previous post, we saw how to enable actuator endpoints on our spring server. Once we have done that, it is a good idea to add GIT release information to the server in order to get the information related to the currently deployed server at runtime.
We add the…

11. Spring Actuators

pring provides actuators that are a helpful set of tools to debug the application on runtime. Here is how to enable them. We first add actuator dependency in the pom.xml

<dependency>
  <groupid>org.springframework.boot</groupid>…

10. Application with multiple data sources

Many times it is a practical requirement to have multiple databases for a single application. These databases could be at different locations on the cloud and different entities in your application may be dealing with these databases.
Multi-tenancy is a…

9. Role-based data access

Many times we have a need to return data from an endpoint based on the role. Spring framework provider easy mechanism for us to be able to do that. Let’s take an example. In the previous example, we want to add a GET method in UserEndpoint that returns all the users. For any safe…

8. That little matter of creating a user

Now that our simplified authentication system is in place, we are faced with the little matter of how to create a new user. Since we don’t have a username, password, or token we can’t really create a new user.
To accomplish that, we need to make some…

7. Enabling Swagger

Before we proceed any further, let’s enable swagger on our service so that testing it becomes easy. The first step is to add…

6. Introducing Spring Security

If the web services that we are building require any level of authentication and authorization, it is better to understand Spring security context. Services that are properly built with security context can implement a better level of security at each method and endpoint…

5. Replacing tomcat with jetty

By default when we run spring boot application, it runs a tomcat server. I have personally found tomcat too heavyweight and I prefer to use Jetty for writing a webservices backend.

2018-12-19 10:54:08.403  INFO 16029 --- [           main]…

4. More on CrudRepository

In the previous post, we used the CrudRepository interface. We only used the methods already provided by the interface. In this post, we look at how we can extend the interface with custom queries. Let’s go back to our UserEndpoint. In the GET method, we can currently get the…