WIP: improve IH performance

Author: cprussin

apps/insights/src/components/Publisher/get-price-feeds.tsx

@@ -4,6 +4,8 @@ import { ClusterToName, getFeedsForPublisher } from "../../services/pyth";
 import { getStatus } from "../../status";
 
 export const getPriceFeeds = async (cluster: Cluster, key: string) => {
+  "use cache"
+
   const [feeds, rankings] = await Promise.all([
     getFeedsForPublisher(cluster, key),
     getRankingsByPublisher(key),

apps/insights/src/services/pyth.ts

@@ -6,6 +6,7 @@ import {
 } from "@pythnetwork/client";
 import type { PythPriceCallback } from "@pythnetwork/client/lib/PythConnection";
 import { Connection, PublicKey } from "@solana/web3.js";
+import { cache } from "react";
 import { z } from "zod";
 
 export enum Cluster {
@@ -55,18 +56,22 @@ const clients = {
   [Cluster.PythtestConformance]: mkClient(Cluster.PythtestConformance),
 } as const;
 
+const getDataForCluster = cache(
+  (cluster: keyof typeof clients) => clients[cluster].getData()
+);
+
 export const getPublishersForFeed = async (
   cluster: Cluster,
   symbol: string,
 ) => {
-  const data = await clients[cluster].getData();
+  const data = await getDataForCluster(cluster);
   return data.productPrice
     .get(symbol)
     ?.priceComponents.map(({ publisher }) => publisher.toBase58());
 };
 
 export const getFeeds = async (cluster: Cluster) => {
-  const data = await clients[cluster].getData();
+  const data = await getDataForCluster(cluster);
   return priceFeedsSchema.parse(
     data.symbols.map((symbol) => ({
       symbol,
@@ -80,7 +85,7 @@ export const getFeedsForPublisher = async (
   cluster: Cluster,
   publisher: string,
 ) => {
-  const data = await clients[cluster].getData();
+  const data = await getDataForCluster(cluster);
   return priceFeedsSchema.parse(
     data.symbols
       .filter(