add price history api worker

scripts/apis/creg/creg.js

@@ -114,7 +114,7 @@ export async function getSchools(lat, long) {
 }
 
 /**
- * Gets the market trends for .
+ * Gets the market trends for a listing.
  *
  * @param {string} listingId - The ID of the listing.
  * @param {string} lat latitude
@@ -134,3 +134,19 @@ export async function getMarketTrends(listingId, lat, long, zipcode) {
     });
   });
 }
+
+/**
+ * Gets the price history for a listing.
+ *
+ * @param {string} listingId - The ID of the listing.
+ * @return {Promise<Object>} resolving the economic details
+ */
+export async function getPriceHistory(listingId) {
+  return new Promise((resolve) => {
+    const worker = new Worker(`${window.hlx.codeBasePath}/scripts/apis/creg/workers/pricehistory.js`, { type: 'module' });
+    worker.onmessage = (e) => resolve(e.data);
+    worker.postMessage({
+      listingId,
+    });
+  });
+}

scripts/apis/creg/workers/pricehistory.js

@@ -0,0 +1,19 @@
+/**
+ * Handle the Worker event. Fetches price history for a provided listing id.
+ *
+ * @param {Object} event the worker event.
+ * @param {string} event.data.api the URL to fetch.
+ * @param {string} event.data.id listing id.
+ */
+onmessage = async (event) => {
+  const { listingId } = event.data;
+
+  try {
+    const response = await fetch(`/v1/pricehistory/${listingId}`);
+    const data = response.ok ? await response.json() : undefined;
+
+    postMessage(data);
+  } catch (error) {
+    postMessage({});
+  }
+};