Bootstraping Foundation: Implementing Infrastructure and Core Entities in capevents

Infrastructure Setup

Starting a new project requires a solid foundation to handle database migrations and domain entity management. In the capevents project, we focused on establishing a robust backend using Spring Boot. Our initial phase centered on configuring the infrastructure layer to support clean data migration and organized service endpoints.

Database Versioning with Flyway

To ensure our PostgreSQL database state remains consistent across development environments, we integrated Flyway for schema versioning. This approach replaces manual schema management with reproducible migration scripts.

-- V1__create_department_table.sql
CREATE TABLE app_department (
    id SERIAL PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

Modeling Core Entities

Using the Repository Pattern, we defined the initial domain entities for Role and Department management. By leveraging Hibernate, we mapped these entities to our PostgreSQL schema, ensuring that our Spring services interact with data through typed, testable interfaces.

@Entity
@Table(name = "app_department")
public class Department {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    private String name;
    
    // Getters and Setters
}

Service Orchestration

With the data layer configured, we implemented RESTful endpoints to expose role and department operations. We utilized Swagger to automatically document these APIs, ensuring that client teams can easily explore our service contract as the project evolves.

Takeaway

When starting a new project, prioritize your infrastructure and migration tooling early. Implementing Flyway and the Repository Pattern from the first commit significantly reduces technical debt and makes schema changes predictable as your domain grows.

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