Improving file organization.

src/learning-sequence/sub-section/data/api.js

@@ -0,0 +1,11 @@
+import { getConfig } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+
+/* eslint-disable import/prefer-default-export */
+
+export async function getSubSectionMetadata(courseId, subSectionId) {
+  const { data } = await getAuthenticatedHttpClient()
+    .get(`${getConfig().LMS_BASE_URL}/courses/${courseId}/xblock/${subSectionId}/handler/xmodule_handler/metadata`, {});
+
+  return data;
+}

src/learning-sequence/sub-section/data/hooks.js

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+import { useState, useEffect } from 'react';
+
+import { getSubSectionMetadata } from './api';
+
+export function useSubSectionMetadata(courseId, subSectionId) {
+  const [metadata, setMetadata] = useState(null);
+  const [loaded, setLoaded] = useState(false);
+
+  useEffect(() => {
+    setLoaded(false);
+    getSubSectionMetadata(courseId, subSectionId).then((data) => {
+      setMetadata(data);
+      setLoaded(true);
+    });
+  }, [courseId, subSectionId]);
+
+  return {
+    metadata,
+    loaded,
+  };
+}
+
+export function useExamRedirect(metadata, blocks) {
+  useEffect(() => {
+    if (metadata !== null && blocks !== null) {
+      if (metadata.isTimeLimited) {
+        global.location.href = blocks[metadata.itemId].lmsWebUrl;
+      }
+    }
+  }, [metadata, blocks]);
+}