edit

src/main/java/org/usf/traceapi/core/RemoteTraceSender.java

@@ -4,7 +4,6 @@
 import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
 
 import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.TimeUnit;
 
 import org.springframework.web.client.RestTemplate;
 
@@ -25,32 +24,26 @@ public final class RemoteTraceSender implements TraceSender {
 
 	static final ScheduledExecutorService executor = newSingleThreadScheduledExecutor();
 
-	private final String host;
-	private final int delay;
-	private final TimeUnit unit;
+	private final TraceConfigurationProperties properties;
 	private final RestTemplate template;
 
-	public RemoteTraceSender(TraceConfig config) {
-		this(normalizeHost(config.getHost()), config.getDelay(), TimeUnit.valueOf(config.getUnit()), new RestTemplate());
+	public RemoteTraceSender(TraceConfigurationProperties properties) {
+		this(properties, new RestTemplate());
 	}
-
+	
 	@Override
 	public void send(Metric trc) {
-		var uri = join("/", host, TRACE_ENDPOINT, endpointFor(trc));
-		executor.schedule(()-> template.put(uri, trc), delay, unit); //wait for sending response
+		var uri = join("/", properties.getHost(), TRACE_ENDPOINT, endpointFor(trc));
+		executor.schedule(()-> template.put(uri, trc), properties.getDelay(), properties.getUnit()); //wait for sending response
 	}
 
 	private static String endpointFor(@NonNull Metric trc) {
 		if(trc.getClass() == IncomingRequest.class) {
 			return INCOMING_ENDPOINT;
 		}
-		else if(trc.getClass() ==  OutcomingRequest.class) { //super after
+		else if(trc.getClass() ==  OutcomingRequest.class) {
 			return OUTCOMING_ENDPOINT;
 		}
 		throw new UnsupportedOperationException(trc.getClass().getSimpleName() + " : " + trc);
 	}
-
-	private static String normalizeHost(String host) {
-		return host.endsWith("/") ? host.substring(0, host.length()-1) : host;
-	}
 }

src/main/java/org/usf/traceapi/core/TraceConfiguration.java

@@ -23,7 +23,7 @@
  *
  */
 @Configuration
-@EnableConfigurationProperties(TraceConfig.class)
+@EnableConfigurationProperties(TraceConfigurationProperties.class)
 @ConditionalOnProperty(prefix = "api.tracing", name = "enabled", havingValue = "true")
 public class TraceConfiguration implements WebMvcConfigurer {
 
@@ -61,7 +61,7 @@ public Object postProcessBeforeInitialization(Object bean, String beanName) thro
     }
 
     @Bean
-    public TraceSender sender(TraceConfig config) {
+    public TraceSender sender(TraceConfigurationProperties config) {
     	return config.getHost().isBlank() 
         		? res-> {} 
         		: new RemoteTraceSender(config);

src/main/java/org/usf/traceapi/core/TraceConfigurationProperties.java

@@ -0,0 +1,37 @@
+package org.usf.traceapi.core;
+
+import static java.util.concurrent.TimeUnit.SECONDS;
+
+import java.util.concurrent.TimeUnit;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+import lombok.Getter;
+import lombok.Setter;
+
+/**
+ * 
+ * @author u$f
+ *
+ */
+@Getter
+@Setter
+@ConfigurationProperties(prefix = "api.tracing")
+public final class TraceConfigurationProperties {
+
+	private String host = "";
+	private int delay = 5;
+	private TimeUnit unit = SECONDS;
+
+	public void setHost(String host) {
+		this.host = normalizeHost(host);
+	}
+
+	public void setUnit(String unit){
+		this.unit = TimeUnit.valueOf(unit.toLowerCase());
+	}
+
+	private static String normalizeHost(String host) {
+		return host.endsWith("/") ? host.substring(0, host.length()-1) : host;
+	}
+}