MainVerticle.java

public class MainVerticle extends AbstractVerticle {

    private static final Logger LOGGER = LoggerFactory.getLogger(MainVerticle.class);

    @Override
    public void start() {
        final long start = System.currentTimeMillis();

        deployMigrationVerticle(vertx)
                .flatMap(migrationVerticleId -> deployApiVerticle(vertx))
                .onSuccess(success -> LOGGER.info(LogUtils.RUN_APP_SUCCESSFULLY_MESSAGE.buildMessage(System.currentTimeMillis() - start)))
                .onFailure(throwable -> LOGGER.error(throwable.getMessage()));
    }

    private Future<Void> deployMigrationVerticle(Vertx vertx) {
        final DeploymentOptions options = new DeploymentOptions()
                .setWorker(true)
                .setWorkerPoolName("migrations-worker-pool")
                .setInstances(1)
                .setWorkerPoolSize(1);

        return vertx.deployVerticle(MigrationVerticle.class.getName(), options)
                .flatMap(vertx::undeploy);
    }

    private Future<String> deployApiVerticle(Vertx vertx) {
        return vertx.deployVerticle(ApiVerticle.class.getName());

    }

}