REST over Vertx

Configuration

The REST over Vertx communication channel runs in standalone mode, it can be started in the main function. In the main function, you need to initialize logs and load service configuration. The code is as follow:

import org.apache.servicecomb.foundation.common.utils.BeanUtils;
import org.apache.servicecomb.foundation.common.utils.Log4jUtils;

public class MainServer {
  public static void main(String[] args) throws Exception {
  　Log4jUtils.init();// Log initialization
  　BeanUtils.init(); // Spring bean initialization
  }
}

To use the REST over Vertx communication channel, add the following dependencies in the maven pom.xml file:

<dependency>
　　<groupId>org.apache.servicecomb</groupId>
　　<artifactId>transport-rest-vertx</artifactId>
</dependency>

The REST over Vertx related configuration items in the microservice.yaml file are described as follows:

Table 1-1 Configuration items for REST over Vertx

Configuration Item	Default Value	Description
servicecomb.rest.address		listening address, empty for not listen, just a rest client
servicecomb.rest.server.connection-limit	Integer.MAX_VALUE	Max allowed client connections
servicecomb.rest.server.thread-count	verticle-count	rest server verticle instance count(Deprecated)
servicecomb.rest.server.verticle-count	verticle-count	rest server verticle instance count
servicecomb.rest.server.connection.idleTimeoutInSeconds	60	Timeout for server's idle connection, The idle connections will be closed
servicecomb.rest.client.thread-count	verticle-count	rest client verticle instance count(Deprecated)
servicecomb.rest.client.verticle-count	verticle-count	rest client verticle instance count
servicecomb.rest.client.connection.maxPoolSize	5	The maximum number of connections in each connection pool for an IP:port combination
servicecomb.rest.client.connection.idleTimeoutInSeconds	30	Timeout for client's idle connection, The idle connections will be closed
servicecomb.rest.client.connection.keepAlive	true	Whether to use long connections

Sample Code

An example of the configuration in the microservice.yaml file for REST over Vertx:

servicecomb:
  rest:
    address: 0.0.0.0:8080
    thread-count: 1
  references:
    hello:
      transport: rest
      version-rule: 0.0.1