Add api endpoint that revalidates the current month and 3 more ahead

apps/web/pages/api/revalidate-calendar-cache/[username].ts

@@ -0,0 +1,41 @@
+import { NextApiRequest, NextApiResponse } from "next";
+import { z } from "zod";
+
+import dayjs from "@calcom/dayjs";
+
+const querySchema = z.object({
+  username: z.string(),
+});
+
+export const revalidateCalendarCache = (
+  revalidate: NextApiResponse["revalidate"],
+  username: string,
+  monthsToRevalidate = 4
+): Promise<void[]> => {
+  return Promise.all(
+    new Array(monthsToRevalidate).fill(0).map((_, index): Promise<void> => {
+      const date = dayjs().add(index, "month").format("YYYY-MM");
+      const url = `/${username}/calendar-cache/${date}`;
+      console.log("revalidating", url);
+      return revalidate(url);
+    })
+  );
+};
+
+/**
+ * This endpoint revalidates users calendar cache several months ahead
+ * Can be used as webhook
+ * @param req
+ * @param res
+ * @returns
+ */
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+  const { username } = querySchema.parse(req.query);
+  try {
+    await revalidateCalendarCache(res.revalidate, username);
+    return res.status(200).json({ revalidated: true });
+  } catch (err) {
+    return res.status(500).send({ message: "Error revalidating" });
+  }
+}