Kotlin-Java Demo ToDo app

Simple ToDo app containing REST API written in Java and Kotlin using:

• Spring Data JPA
• Flyway Migration Tool
• PostgresDB 12 (scripts)
• JUnit5

1. Setting up and running the app

To properly set up and run the app perform following steps:

1. Create todo_db database in Postgres DB ver 12 using following credentials: username=postgres
   password=postgres
   NOTE: Make sure they are matching spring.datasource.username / spring.flyway.user properties in application.properties file
2. Enter directory of todo-kotlin-java-app module
3. Make sure property spring.flyway.enabled is set to true located in src/main/resources/application.properties
4. Execute ./gradlew bootRun command
5. Before 2nd and every other app run (i.e. before executing Step4) set spring.flyway.enabled property to false located in src/main/resources/application.properties

2. App containerization

If you prefer not to have needed Postgres 12 version installed on your computer locally you can run docker-compose. In that use case you need to:

1. Disable port 5432 in order for containerized Postgres image to run
2. Create docker network named app_db_net.

Finally, execute docker compose up -d command to start both application and database containers.

3. REST Endpoints

Target one of following endpoints

1. GET all Todo(s) http://localhost:8080/api/todos
   
2. GET Single Todo (with id=1) http://localhost:8080/api/todos/1
   
3. POST Todo http://localhost:8080/api/todos
   ...using following body

   {
      "title": "Kotlin app review",
      "description": "Survive the Kotlin app review"
   }

4. PATCH Todo http://localhost:8080/api/todos/3
   ...using following body

    {
        "title": "Push created Kotlin project!!!"
    }

5. DELETE Todo http://localhost:8080/api/todos/2