JetBrains intro task: message service

Heroku deployment - link to OpenAPI docs

Features

• Create messages from templates using provided variables
• Validate variables by defining types in templates
• Schedule message sending using cron (e.g. */5 * * * * *) or fixed interval (e.g. 00/500ms, 1s, 2m, 30h)
• Send a created message to multiple recipients, either HTTP servers (defined by URL) or emails (defined as mailto:<email address>)
• Schedule message sending & cancel scheduled tasks

Technological stack

• Java 11
• Gradle
• Spring Boot 2.4
• Spring Data JPA
• Project Lombok
• H2DB
• OpenAPI Documentation