Adds basic availability endpoint

pages/api/availability/_get.ts

@@ -0,0 +1,29 @@
+import type { NextApiRequest } from "next";
+import { z } from "zod";
+
+import { getUserAvailability } from "@calcom/core/getUserAvailability";
+import { defaultResponder } from "@calcom/lib/server";
+import { stringOrNumber } from "@calcom/prisma/zod-utils";
+
+const availabilitySchema = z
+  .object({
+    userId: stringOrNumber.optional(),
+    username: z.string().optional(),
+    dateFrom: z.string(),
+    dateTo: z.string(),
+    eventTypeId: stringOrNumber.optional(),
+  })
+  .refine((data) => !!data.username || !!data.userId, "Either username or userId should be filled in.");
+
+async function handler(req: NextApiRequest) {
+  const { username, userId, eventTypeId, dateTo, dateFrom } = availabilitySchema.parse(req.query);
+  return getUserAvailability({
+    username,
+    dateFrom,
+    dateTo,
+    eventTypeId,
+    userId,
+  });
+}
+
+export default defaultResponder(handler);

pages/api/availability/index.ts

@@ -0,0 +1,5 @@
+import { defaultHandler } from "@calcom/lib/server";
+
+export default defaultHandler({
+  GET: import("./_get"),
+});