Simple demo for Spring Boot deployable to Heroku

This is a simple Spring Boot application which uses Spring, Postgres/HSQLDB, Rest, jQuery and Bootstrap. You can see it live here (it's deployed to free dyno on Heroku, and it might be slow at start):

https://peaceful-taiga-63635.herokuapp.com/

The main idea about this demo was testing Spring Boot with Heroku, so it is easily deployable following this Heroku tutorial. Default database is set to Postgres, so make sure you activate your Heroku Postgres add-on. If you want to use in-memory database, you can build application using 'in-memory-db' maven profile (there is short explanation how to use custom build command with Procfile in tutorial).

The easiest way to get this app running is to build it using mvn clean install -Pin-memory-db (which starts the app with in memory HSQLDB), and then running it by java -jar target/spring-boot-demo-1.0-SNAPSHOT.jar. Spring Boot wraps Tomcat inside, so the app is deployed to locahost:8080.

Hibernate is configured to drop and re-create tables on each deploy (which destroys all the data). If you wish to change it, you can modify spring.jpa.hibernate.ddl-auto property in application.properties file.