Vert.x Config examples

Here you will find examples demonstrating Vert.x Config.

Vert.x Config provides a way to configure your Vert.x application:

• it offers multiple configuration syntaxes (e.g. JSON, properties, Yaml, Hocon),

• it offers multiple configuration stores (e.g. files, directories, HTTP, git, Redis, system properties, environment properties),

• it lets you define the processing order and overloading,

• it supports runtime reconfiguration.

Simple HTTP Server configuration

In this example, a Server verticle is deployed.

It fetches configuration using ConfigRetriever and then starts an HTTP server.

By default, the ConfigRetriever is configured with the following stores (in this order):

• the Vert.x verticle config(),

• Java system properties,

• environment variables,

• a conf/config.json file.

After starting the server, you can send HTTP requests using your favorite tool (e.g, curl or a browser).

Then, uncomment the first two lines of the main method and restart the server. You will see that the server is listening on a different port and that the HTTP response has changed.