Microservice Core Overview

The Microservice API consists of a base class for defining executable microservices.

Features include:

• A builder-based API for defining and starting microservices.
• An extensible API that allows you to hook into various lifecycle events.
• Simple-to-use APIs for accessing manifest file entries, command-line arguments, and external configuration file properties.

The Microservice API consists of the following packages and classes:

Microservice APIorg.apache.juneau.microservice - Main packageMicroservice - The base microservice class.Microservice.Builder - Builder for the microservice class.MicroserviceListener - Interface for hooking into lifecyle events of the microservice.BasicMicroserviceListener - Adapter for MicroserviceListener class.org.apache.juneau.microservice.console - Console packageConsoleCommand - Abstract class for defining console commands.

By itself the Microservice API doesn't provided much functionality but it does provide the basis for the Jetty Microservice described later. The most-basic creation of a microservice from an entry-point method is shown below:

public class App {
    public static void main(String[] args) {
        Microservice
            .create()   // Create builder.
            .args(args) // Pass in args.
            .build()    // Create microservice.
            .start()    // Start microservice.
        ;
    }
}