Spreadsheet Backend

Java 21 Spring Boot backend for the spreadsheet application.

Stack

• Spring Boot 3
• PostgreSQL with Flyway migrations
• Redis for JWT revocation and hot range cache
• JWT authentication with owner/admin authorization
• OpenAPI via springdoc
• Docker Compose for local and production-like runs

Local Run

docker compose up --build

The API starts on http://localhost:8080.

• Health: GET /actuator/health
• Swagger UI: GET /swagger-ui.html
• OpenAPI JSON: GET /v3/api-docs

Tests

With Java 21 and Docker available:

./gradlew test

On Windows PowerShell:

.\gradlew.bat test

Integration tests use Testcontainers for PostgreSQL and Redis.

Docs

• API examples
• Database schema and ER diagram
• Production deployment guide