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<h1>MicroProfile Config</h1>
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<p>This is an example on how to use microprofile config in TomEE.</p>
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<h2 id="_run_the_application">Run the application:</h2>
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<pre class="highlight"><code class="language-bash" data-lang="bash">mvn clean install tomee:run</code></pre>
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<h2 id="_api">API</h2>
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<p>Within the application there are three ways to inject values using config</p>
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<p>1 . For the ConfigProperty with default value call:</p>
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<pre>GET http://localhost:8080/mp-config-example/sample/defaultProperty</pre>
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<p>2 . For the get property inject with ConfigProperty call:</p>
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<pre>GET http://localhost:8080/mp-config-example/sample/injectedJavaVersion</pre>
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<p>3 . For the get property from Config with getValue call:</p>
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<pre>GET http://localhost:8080/mp-config-example/sample/javaVersion</pre>
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<h2 id="_config_feature">Config Feature</h2>
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<p>MicroProfile Config is a solution to externalise configuration from microservices.
Each individual property can be injected directly</p>
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<pre class="highlight"><code class="language-java" data-lang="java">@Inject
@ConfigProperty(name = "java.runtime.version")
private String javaVersion;</code></pre>
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<p>You can also set a default value for it, in case the config does not match the property in the context it will use the default value</p>
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<pre class="highlight"><code class="language-java" data-lang="java">@Inject
@ConfigProperty(name = "defaultProperty", defaultValue = "ALOHA")
private String defaultProperty;</code></pre>
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<p>The config object can also be injected. Then use the getValue() method to retrieve the individual property.</p>
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<pre class="highlight"><code class="language-java" data-lang="java">@Inject
private Config config;
@GET
@Path("javaVersion")
public String getJavaVersionPropertyFromSystemProperties() {
return config.getValue("java.runtime.version", String.class);
}</code></pre>
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