diff --git a/utils/eventLogger/getFilePath.test.ts b/utils/eventLogger/getFilePath.test.ts
new file mode 100644
index 000000000..b575e824b
--- /dev/null
+++ b/utils/eventLogger/getFilePath.test.ts
@@ -0,0 +1,46 @@
+import getFilePath from "./getFilePath";
+
+test("YouTube Video IDが得られる", () => {
+  expect(
+    getFilePath({
+      providerUrl: "https://www.youtube.com/",
+      url: "https://www.youtube.com/watch?v=aqz-KE-bpKQ",
+    })
+  ).toBe("aqz-KE-bpKQ");
+});
+
+test("Vimeo Video IDが得られる", () => {
+  expect(
+    getFilePath({
+      providerUrl: "https://vimeo.com/",
+      url: "https://vimeo.com/253989945",
+    })
+  ).toBe("253989945");
+});
+
+test("Wowzaのファイルパスが得られる", () => {
+  expect(
+    getFilePath({
+      providerUrl: "https://example/",
+      url: "https://example/api/v2/wowza/sample.mp4",
+    })
+  ).toBe("sample.mp4");
+});
+
+test("YouTube Video IDの取得失敗", () => {
+  expect(
+    getFilePath({
+      providerUrl: "https://www.youtube.com/",
+      url: "https://www.youtube.com/",
+    })
+  ).toBe(undefined);
+});
+
+test("URLが空", () => {
+  expect(
+    getFilePath({
+      providerUrl: "https://vimeo.com/",
+      url: "",
+    })
+  ).toBe(undefined);
+});
diff --git a/utils/eventLogger/getFilePath.ts b/utils/eventLogger/getFilePath.ts
new file mode 100644
index 000000000..689793d8f
--- /dev/null
+++ b/utils/eventLogger/getFilePath.ts
@@ -0,0 +1,27 @@
+import getValidUrl from "$utils/getValidUrl";
+
+/**
+ * ビデオリソースURLをv1イベントオブジェクトのfileパラメーターに変換
+ * @param e.providerUrl 動画プロバイダーの識別子
+ * @param e.url URL
+ * @return v1イベントオブジェクトのfileパラメーター
+ */
+function getFilePath({
+  providerUrl,
+  url,
+}: {
+  providerUrl: string | null;
+  url: string;
+}) {
+  const validUrl = getValidUrl(url);
+  // TODO: URLの取得に失敗し "" が得られる不具合が解決すればこの処理はおそらく不要
+  if (!validUrl) return;
+
+  if (providerUrl === "https://www.youtube.com/") {
+    return new URLSearchParams(url.split("?")[1]).get("v") ?? undefined;
+  }
+
+  return validUrl.pathname.replace(/^\/(?:api\/v2\/wowza\/)?/, "");
+}
+
+export default getFilePath;
diff --git a/utils/eventLogger/logger.ts b/utils/eventLogger/logger.ts
index fd701b442..ecdf408a2 100644
--- a/utils/eventLogger/logger.ts
+++ b/utils/eventLogger/logger.ts
@@ -2,6 +2,7 @@ import type { EventType } from "$server/models/event";
 import { api } from "$utils/api";
 import { PlayerEvent, PlayerEvents, PlayerTracker } from "./playerTracker";
 import { load } from "./loggerSessionPersister";
+import getFilePath from "./getFilePath";
 
 /** v1のときのトラッキング用コードの移植 */
 function send(eventType: EventType, event: PlayerEvent, detail?: string) {
@@ -12,10 +13,7 @@ function send(eventType: EventType, event: PlayerEvent, detail?: string) {
   const body = {
     event: eventType,
     detail,
-    file:
-      event.providerUrl === "https://www.youtube.com/"
-        ? new URLSearchParams(event.url.split("?")[1]).get("v") ?? undefined
-        : new URL(event.url).pathname.replace(/^\/(?:api\/v2\/wowza\/)?/, ""),
+    file: getFilePath(event),
     query: event.url.split("?")[1],
     current: event.currentTime.toString(),
     rid: id(ltiLaunchBody.resource_link_id),
diff --git a/utils/getValidUrl.ts b/utils/getValidUrl.ts
new file mode 100644
index 000000000..dd6390363
--- /dev/null
+++ b/utils/getValidUrl.ts
@@ -0,0 +1 @@
+export { default } from "$server/utils/getValidUrl";