Share feedback
Answers are generated based on the documentation.

Create the Quarkus project

Table of contents

Set up the project

Create a Quarkus project from code.quarkus.io by selecting the RESTEasy Classic, RESTEasy Classic Jackson, Hibernate Validator, Hibernate ORM with Panache, JDBC Driver - PostgreSQL, and Flyway extensions.

Alternatively, clone the guide repository.

The key dependencies in pom.xml are:

<properties>
    <quarkus.platform.version>3.22.3</quarkus.platform.version>
</properties>
<dependencies>
    <dependency>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-hibernate-orm-panache</artifactId>
    </dependency>
    <dependency>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-flyway</artifactId>
    </dependency>
    <dependency>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-hibernate-validator</artifactId>
    </dependency>
    <dependency>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-resteasy</artifactId>
    </dependency>
    <dependency>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-resteasy-jackson</artifactId>
    </dependency>
    <dependency>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-jdbc-postgresql</artifactId>
    </dependency>
    <dependency>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-junit5</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.rest-assured</groupId>
        <artifactId>rest-assured</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

Create the JPA entity

Hibernate ORM with Panache supports the Active Record pattern and the Repository pattern to simplify JPA usage. This guide uses the Active Record pattern.

Create Customer.java by extending PanacheEntity. This gives the entity built-in persistence methods such as persist(), listAll(), and findById().

package com.testcontainers.demo;

import io.quarkus.hibernate.orm.panache.PanacheEntity;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.Table;

@Entity
@Table(name = "customers")
public class Customer extends PanacheEntity {

    @Column(nullable = false)
    public String name;

    @Column(nullable = false, unique = true)
    public String email;

    public Customer() {}

    public Customer(Long id, String name, String email) {
        this.id = id;
        this.name = name;
        this.email = email;
    }
}

Create the CustomerService CDI bean

Create a CustomerService class annotated with @ApplicationScoped and @Transactional to handle persistence operations:

package com.testcontainers.demo;

import jakarta.enterprise.context.ApplicationScoped;
import jakarta.transaction.Transactional;
import java.util.List;

@ApplicationScoped
@Transactional
public class CustomerService {

    public List<Customer> getAll() {
        return Customer.listAll();
    }

    public Customer create(Customer customer) {
        customer.persist();
        return customer;
    }
}

Add the Flyway database migration script

Create src/main/resources/db/migration/V1__init_database.sql:

create sequence customers_seq start with 1 increment by 50;

create table customers
(
    id    bigint DEFAULT nextval('customers_seq') not null,
    name  varchar                                 not null,
    email varchar                                 not null,
    primary key (id)
);

insert into customers(name, email)
values ('john', 'john@mail.com'),
       ('rambo', 'rambo@mail.com');

Enable Flyway migrations in src/main/resources/application.properties:

quarkus.flyway.migrate-at-start=true

Create the REST API endpoints

Create CustomerResource.java with endpoints for fetching all customers and creating a customer:

package com.testcontainers.demo;

import jakarta.ws.rs.Consumes;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.Response;
import java.util.List;

@Path("/api/customers")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public class CustomerResource {
    private final CustomerService customerService;

    public CustomerResource(CustomerService customerService) {
        this.customerService = customerService;
    }

    @GET
    public List<Customer> getAllCustomers() {
        return customerService.getAll();
    }

    @POST
    public Response createCustomer(Customer customer) {
        var savedCustomer = customerService.create(customer);
        return Response.status(Response.Status.CREATED).entity(savedCustomer).build();
    }
}
Write tests with Testcontainers »