Simple script for testing if we are correctly gathering the ice candidates in the browser.

examples/aws-agentcore/scripts/turn-test.js

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+// Simple script for testing if we are correctly gathering the ice candidates from a specific
+// turn server in the browser
+(async () => {
+  console.clear();
+  console.log("Starting ICE candidate test…");
+
+  const turnServer = {
+    urls: "turn:turn.cloudflare.com:80?transport=tcp",
+    username: "username",
+    credential: "password"
+  };
+
+  const pc = new RTCPeerConnection({
+    iceServers: [ turnServer ],
+    iceTransportPolicy: "all"  // or "relay" if you want only TURN
+  });
+
+  let gotRelay = false;
+
+  pc.onicecandidate = event => {
+    if (!event.candidate) {
+      console.log("ICE gathering finished.");
+      if (gotRelay) {
+        console.log("%cTURN relay candidate FOUND ✔️", "color: green; font-weight: bold;");
+      } else {
+        console.log("%cNo TURN relay candidates detected ❌", "color: red; font-weight: bold;");
+      }
+      return;
+    }
+
+    const cand = event.candidate.candidate;
+    console.log("ICE Candidate:", cand);
+
+    if (cand.includes("typ relay")) {
+      console.log("%cTURN relay candidate detected!", "color: green;");
+      gotRelay = true;
+    }
+  };
+
+  // Create empty data channel (required to trigger ICE)
+  pc.createDataChannel("test");
+
+  const offer = await pc.createOffer();
+  await pc.setLocalDescription(offer);
+
+  console.log("Gathering ICE candidates…");
+})();