From a9b44cbae79e9c01cff07964a45e1c7efa7fb241 Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Thu, 5 Dec 2024 19:20:36 -0800
Subject: cached rates

---
 src/lib/cache.ts   | 17 +++++++++++++++++
 src/lib/invoice.ts |  5 +++--
 src/lib/rates.ts   | 13 +++++++++++++
 3 files changed, 33 insertions(+), 2 deletions(-)
 create mode 100644 src/lib/cache.ts
 create mode 100644 src/lib/rates.ts

(limited to 'src/lib')

diff --git a/src/lib/cache.ts b/src/lib/cache.ts
new file mode 100644
index 00000000..079c561b
--- /dev/null
+++ b/src/lib/cache.ts
@@ -0,0 +1,17 @@
+
+// src/lib/server/cache.ts
+let cachedData: any = null;
+
+async function fetchData() {
+  // Fetch data from your API
+  const response = await fetch('https://api.example.com/data');
+  cachedData = await response.json();
+}
+
+// Initialize cache and set up periodic updates
+fetchData(); // Initial fetch
+setInterval(fetchData, 60000); // Update every 60 seconds
+
+export function getCachedData() {
+  return cachedData;
+}
diff --git a/src/lib/invoice.ts b/src/lib/invoice.ts
index a48e02a4..d7576e82 100644
--- a/src/lib/invoice.ts
+++ b/src/lib/invoice.ts
@@ -1,12 +1,13 @@
-import { auth, get, post } from "$lib/utils";
+import getRates from "$lib/rates";
+import { auth, post } from "$lib/utils";
 import { redirect } from "@sveltejs/kit";
 
 export default async ({ cookies, request }) => {
 	const form = await request.formData();
 	const aid = form.get("aid") || cookies.get("aid");
 
-	const rates = await get("/rates");
 	const amount = parseInt(form.get("amount"));
+	const rates = await getRates();
 
 	let invoice = {
 		aid,
diff --git a/src/lib/rates.ts b/src/lib/rates.ts
new file mode 100644
index 00000000..96aaeac2
--- /dev/null
+++ b/src/lib/rates.ts
@@ -0,0 +1,13 @@
+import { get } from "$lib/utils";
+
+let last;
+let rates;
+
+export default async function getRates() {
+	if (!rates || Date.now() - last > 60000) {
+		rates = await get("/rates");
+		last = Date.now();
+	}
+
+	return rates;
+}
-- 
cgit v1.2.3