MongoCommandProblemTest.java

import io.vertx.core.DeploymentOptions;
import io.vertx.core.json.JsonArray;
import io.vertx.core.json.JsonObject;
import io.vertx.rxjava.core.Vertx;
import io.vertx.rxjava.ext.mongo.MongoService;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class MongoCommandProblemTest {

    private static final String MONGO_SERVICE_ADDRESS = "vertx.mongo";
    private Vertx vertx;

    @Before
    public void setUp() throws Exception {
        vertx = Vertx.vertx();
        vertx.deployVerticleObservable("service:io.vertx.vertx-mongo-embedded-db").toBlocking().last();


        JsonObject config = new JsonObject()
                .put("address", MONGO_SERVICE_ADDRESS)
                .put("connection_string", "mongodb://localhost:27018")
                .put("db_name", "test");
        DeploymentOptions deploymentOptions = new DeploymentOptions();
        deploymentOptions.setConfig(config);
        vertx.deployVerticleObservable("service:io.vertx.mongo-service", deploymentOptions).toBlocking().last();
    }

    @Test
    public void testMongoServiceClient() throws Exception {
        MongoService mongoService = MongoService.createEventBusProxy(vertx, MONGO_SERVICE_ADDRESS);
        JsonObject command = new JsonObject()
                .put("aggregate", "collection_name")
                .put("pipeline", new JsonArray());
        mongoService.runCommandObservable(command).toBlocking().last();
    }

    @After
    public void tearDown() throws Exception {
        vertx.closeObservable().toBlocking().last();
    }
}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>sth.vertx</groupId>
    <artifactId>mongo-command-problem</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <vertx.version>3.0.0-milestone5</vertx.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>io.vertx</groupId>
            <artifactId>vertx-mongo-embedded-db</artifactId>
            <version>${vertx.version}</version>
        </dependency>
        <dependency>
            <groupId>io.vertx</groupId>
            <artifactId>vertx-mongo-service</artifactId>
            <version>${vertx.version}</version>
        </dependency>
        <dependency>
            <groupId>io.vertx</groupId>
            <artifactId>vertx-rx-java</artifactId>
            <version>${vertx.version}</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
    </dependencies>
</project>