Add passing headers example

Author: kklisura

cdt-examples/src/main/java/com/github/kklisura/cdt/examples/PassingCustomHeadersToRequests.java

@@ -0,0 +1,64 @@
+package com.github.kklisura.cdt.examples;
+
+import com.github.kklisura.cdt.launch.ChromeLauncher;
+import com.github.kklisura.cdt.protocol.commands.Network;
+import com.github.kklisura.cdt.protocol.commands.Page;
+import com.github.kklisura.cdt.protocol.types.network.RequestPattern;
+import com.github.kklisura.cdt.services.ChromeDevToolsService;
+import com.github.kklisura.cdt.services.ChromeService;
+import com.github.kklisura.cdt.services.types.ChromeTab;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * This is an example on how to pass header to a intercepted requests. A 'Custom-Header' with
+ * 'Value' is passed on every request.
+ *
+ * @author Kenan Klisura
+ */
+public class PassingCustomHeadersToRequests {
+  public static void main(String[] args) {
+    // Create chrome launcher.
+    final ChromeLauncher launcher = new ChromeLauncher();
+
+    // Launch chrome either as headless (true) or regular (false).
+    final ChromeService chromeService = launcher.launch(false);
+
+    // Create empty tab ie about:blank.
+    final ChromeTab tab = chromeService.createTab();
+
+    // Get DevTools service to this tab
+    final ChromeDevToolsService devToolsService = chromeService.createDevToolsService(tab);
+
+    // Get individual commands
+    final Page page = devToolsService.getPage();
+    final Network network = devToolsService.getNetwork();
+
+    network.onRequestIntercepted(
+        event -> {
+          String interceptionId = event.getInterceptionId();
+
+          System.out.printf(
+              "Adding header to %s request%s", event.getRequest().getUrl(), System.lineSeparator());
+
+          Map<String, Object> headers = new HashMap<>();
+          headers.put("Custom-Header", "Value");
+
+          network.continueInterceptedRequest(
+              interceptionId, null, null, null, null, null, headers, null);
+        });
+
+    RequestPattern interceptionRequestPattern = new RequestPattern();
+    network.setRequestInterception(Collections.singletonList(interceptionRequestPattern));
+    network.enable();
+
+    // Enable page events.
+    page.enable();
+
+    // Navigate to github.com.
+    page.navigate("http://github.com");
+
+    devToolsService.waitUntilClosed();
+  }
+}