This application exposes a REST API on port 8080 with endpoints that provide functionality for updating and retrieving rates for a given time range. These rates are expected not to span days within their original timezone.

It is a purely Kotlin, Spring Boot project that is documented with Swagger and is containerized alongside PostgreSQL for "prod", and uses an in memory H2 database for "dev". It uses Spring Boot's concept of profiles to trigger between the two.

It has a basic but thorough enough set of service and controller layer tests.

Once the application has started via either of the two methods below, send a GET request to http://localhost:8080/rates to see it in action or check out the Swagger documentation link below.

To run the application with PostgreSQL (you will need to have Docker, first run will be download intensive) run the following command from a terminal within this directory.

docker-compose up -d

To directly run the "dev" version, run the following command. Optionally, place a file with name ending with 'rate.json' in this directory containing desired rate defaults. If no file is provided, default example data will be loaded.

./mvnw spring-boot:run

See http://localhost:8080/swagger-ui.html for REST API endpoint usage documentation