When your web application contains a number of services or microservices, you may need them to communicate with each other. This is usually achieved using REST or message queues. A message queue(MQ) is a software component used for passing data … Read More
OAuth is an open standard for authorization, commonly used as a way for Internet users to authorize websites or applications to access their information on other websites, but without giving them the passwords. Actual version of OAuth is 2.0, published … Read More
Have you ever experienced the following error in a unit test : java.lang.IllegalStateException: No transactionManager was specified. Using @Transactional or @Rollback requires a valid configured transaction manager. If you are running in a unit test ensure the test has been properly … Read More
Sometimes you need to store user’s locale in a DB. Grails uses Spring LocaleResolver eg CookieLocaleResolver, SessionLocaleResolver etc. So for creating CustomLocaleResolver you need to implemets Spring LocaleResolver interface. Firstly, add the locale field to the User domain. View the … Read More
JavaFX FXML is an XML-based language that provides the structure for building a user interface separate from the application logic of your code. This separation of the presentation and application logic is attractive to web developers because they can assemble … Read More
If you are familiar with Grails, Groovy and you have a need of a desktop application, the Griffon Framework is the best solution. Griffon Framework is based on the MVC pattern of desktop application development platform for the JVM. This is … Read More
There are three steps to generate PDF from swagger documentation: 1. Rest-api -> swagger.json 2. Swagger.json -> Asciidoc: swagger2markup plugin 3. Asciidoc -> PDF: asciidoctor plugin File swagger.json was generated using swagger-core library and its modules (swagger-models and swagger-annotations). After … Read More
We will be use auditlog grails plugin, that based on Hibernate inteceptor. The lastest version is org.grails.plugins:auditlogging:1.1.0 So I’ll use it. The pretty thing that we can start using it in 2 easy steps: Added plugin to buildConfig Choose the … Read More
Problem: Need to implement into grails project spring web flow Solution: I created an easy grails project. You can download it from github. I’m working with grails 2.3.11, so I choose older webflow plugin: compile ‘:webflow:2.0.8.1’ After it you can … Read More
Problem Need to send Newsletters to users with latest info about service. Solution Comparing SendGrid and Mailchimp as two most popular platforms to send emails, we choose Mailchimp as it is used especially for newsletters sending – not just mass … Read More