feat: stripe handlers and fetchers

packages/lib/stripe/fetchers/portal-session.ts

@@ -0,0 +1,19 @@
+import { PortalSessionRequest, PortalSessionResponse } from "../handlers/portal-session";
+
+export type FetchPortalSessionOptions = PortalSessionRequest["body"];
+
+export const fetchPortalSession = async ({ id }: FetchPortalSessionOptions) => {
+  const response = await fetch("/api/stripe/portal-session", {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify({
+      id,
+    }),
+  });
+
+  const json: PortalSessionResponse = await response.json();
+
+  return json;
+};