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Tag Archives: Spring

Spring Rest API with Swagger – Exposing documentation

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Once you create API documentation it is important to make it available to the stakeholders. In ideal case, this published documentation would be flexible enough to account for any last-minute changes and also be easy to distribute (in terms of costs as well as time needed to accomplish this). To make this possible we will make use of what was accomplished ...

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Spring Caching abstraction and Google Guava Cache

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Spring provides a great out of the box support for caching expensive method calls. The caching abstraction is covered in a great detail here. My objective here is to cover one of the newer cache implementations that Spring now provides with 4.0+ version of the framework – using Google Guava Cache In brief, consider a service which has a few ...

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Server side logging from browser side JavaScript code

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Application logging is something we all do in our applications that get deployed on an application server, right? Using frameworks like Log4J or Logback seems like a no-brainer to most Java developers. But what about the code we’ve written that is running in those pesky browsers? I guess that, apart from the occasional console.log() statement used during debugging, we don’t ...

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Spring from the Trenches: Using Null Values in DbUnit Datasets

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If we are writing integration tests for an application that uses Spring Framework, we can integrate DbUnit with the Spring testing framework by using Spring Test DbUnit. However, this integration is not problem free. Often we have to insert null values to the database before our tests are run or verify that the value saved to the specific table column ...

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Spring Rest API with Swagger – Creating documentation

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The real key to making your REST API easy to use is good documentation. But even if your documentation is done well, you need to set your company processes right to publish it correctly and on time. Ensuring that stakeholders receive it on time is one thing, but you are also responsible for updates in both the API and documentation. ...

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Spring Boot Actuator: custom endpoint with MVC layer on top of it

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Spring Boot Actuator endpoints allow you to monitor and interact with your application. Spring Boot includes a number of built-in endpoints and you can also add your own.   Adding custom endpoints is as easy as creating a class that extends from org.springframework.boot.actuate.endpoint.AbstractEndpoint. But Spring Boot Actuator offers also possibility to decorate endpoints with MVC layer.   Endpoints endpoint There ...

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Spring Boot / Java 8 / Tomcat 8 on Openshift with DIY

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DIY cartridge is an experimental cartridge that provides a way to test unsupported languages on OpenShift. It provides a minimal, free-form scaffolding which leaves all details of the cartridge to the application developer. This blog post illustrates the use of Spring Boot / Java 8 / Tomcat 8 application with PostgreSQL service bound to it. Creating new application Prerequisite Before ...

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Spring Rest API with Swagger – Integration and configuration

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Nowadays, exposed APIs are finally getting the attention they deserve and companies are starting to recognize their strategic value. However, working with 3rd party APIs can be really tedious work, especially when these APIs are not maintained, ill designed or missing any documentation. That’s why I decided to look around for ways to provide fellow programmers and other team members ...

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