Add caching to PSN and Steam API endpoints

src/routes/api/psn/+server.ts

@@ -1,34 +1,38 @@
 import 'dotenv/config'
-import type { AuthTokensResponse, RecentlyPlayedGamesResponse } from 'psn-api'
+import Module from 'node:module'
+import redis from '../redis-client'
+
+import type {
+	AuthTokensResponse,
+	GetUserPlayedTimeResponse,
+	RecentlyPlayedGamesResponse
+} from 'psn-api'
 import type { RequestHandler } from './$types'
 
-import Module from 'node:module'
 const require = Module.createRequire(import.meta.url)
 const {
 	exchangeNpssoForCode,
 	exchangeCodeForAccessToken,
-	getRecentlyPlayedGames
+	getRecentlyPlayedGames,
+	getUserPlayedTime
 } = require('psn-api')
 
+const CACHE_TTL = 60 * 60 * 24
 const PSN_NPSSO_TOKEN = process.env.PSN_NPSSO_TOKEN
+const PSN_ID = '1275018559140296533'
 
 export const GET: RequestHandler = async ({ url }) => {
-	let authorization = await authorize(PSN_NPSSO_TOKEN || '')
-
-	const response: RecentlyPlayedGamesResponse = await getRecentlyPlayedGames(authorization, {
-		limit: 5,
-		categories: ['ps4_game', 'ps5_native_game']
+	// Check if data is in cache
+	const cachedData = await redis.get(`psn:${PSN_ID}`)
+	if (cachedData) {
+		console.log('Using cached PSN data')
+		return new Response(cachedData, {
+			headers: { 'Content-Type': 'application/json' }
 		})
+	}
 
-	const games: SerializableGameInfo[] = response.data.gameLibraryTitlesRetrieve.games.map(
-		(game) => ({
-			id: game.productId,
-			name: game.name,
-			playtime: undefined,
-			lastPlayed: new Date(game.lastPlayedDateTime),
-			coverURL: game.image.url
-		})
-	)
+	// If not in cache, fetch and cache the data
+	const games = await getSerializedGames(PSN_ID)
 
 	return new Response(JSON.stringify(games), {
 		headers: { 'Content-Type': 'application/json' }
@@ -40,3 +44,25 @@ async function authorize(npsso: string): Promise<AuthTokensResponse> {
 	const authorization = await exchangeCodeForAccessToken(accessCode)
 	return authorization
 }
+
+async function getSerializedGames(psnId: string): Promise<SerializableGameInfo[]> {
+	// Authorize with PSN and get games sorted by last played time
+	let authorization = await authorize(PSN_NPSSO_TOKEN || '')
+	const response = await getUserPlayedTime(authorization, PSN_ID, {
+		limit: 5,
+		categories: ['ps4_game', 'ps5_native_game']
+	})
+
+	// Map the games to a serializable format that the frontend understands.
+	const games: SerializableGameInfo[] = response.titles.map((game: GetUserPlayedTimeResponse) => ({
+		id: game.concept.id,
+		name: game.name,
+		playtime: game.playDuration,
+		lastPlayed: game.lastPlayedDateTime,
+		coverURL: game.imageUrl,
+		platform: 'psn'
+	}))
+
+	await redis.setex(`psn:${PSN_ID}`, CACHE_TTL, JSON.stringify(games))
+	return games
+}

src/routes/api/steam/+server.ts

@@ -1,31 +1,30 @@
 import { error, json } from '@sveltejs/kit'
-import type { RequestHandler } from './$types'
+import redis from '../redis-client'
 import SteamAPI, { Game, GameInfo, GameInfoExtended, UserPlaytime } from 'steamapi'
 
+import type { RequestHandler } from './$types'
+
+const CACHE_TTL = 60 * 60 * 24 // 24 hours in seconds
+const STEAM_ID = '76561197997279808'
+
 export const GET: RequestHandler = async ({ params }) => {
-	const steam = new SteamAPI(process.env.STEAM_API_KEY || '')
 	try {
-		const steamId = '76561197997279808'
+		// Check if data is in cache
+		const cachedData = await redis.get(`steam:${STEAM_ID}`)
+		if (cachedData) {
+			console.log('Using cached Steam data')
+			return new Response(cachedData, {
+				headers: { 'Content-Type': 'application/json' }
+			})
+		}
 
-		const ownedGames = await steam.getUserOwnedGames(steamId, { includeExtendedAppInfo: true })
+		// If not in cache, fetch and cache the data
+		const games = await getSerializedGames(STEAM_ID)
 
-		const sortedGames = sortUserPlaytimes(ownedGames).slice(0, 5)
-		const extendedGames = sortedGames.filter(
-			(game): game is UserPlaytime<GameInfoExtended> => 'coverURL' in game.game
-		)
-		const serializableGames: SerializableGameInfo[] = extendedGames.map((game) => ({
-			id: game.game.id,
-			name: game.game.name,
-			playtime: game.minutes,
-			lastPlayed: game.lastPlayedAt,
-			coverURL: game.game.coverURL
-		}))
-
-		return new Response(JSON.stringify(serializableGames), {
+		return new Response(JSON.stringify(games), {
 			headers: { 'Content-Type': 'application/json' }
 		})
 	} catch (err) {
-		console.log('Catching here')
 		console.error('Error fetching recent game:', err)
 		throw error(500, 'Error fetching recent game data')
 	}
@@ -51,3 +50,30 @@ function sortUserPlaytimes(
 		return b.minutes - a.minutes
 	})
 }
+
+async function getSerializedGames(steamId: string): Promise<SerializableGameInfo[]> {
+	// Fetch all owned games from Steam
+	// This is necessary because the recently played API only returns games played in the last 14 days.
+	const steam = new SteamAPI(process.env.STEAM_API_KEY || '')
+	const steamGames = await steam.getUserOwnedGames(steamId, { includeExtendedAppInfo: true })
+
+	// Sort games based on when they were last played and take the first five games.
+	// Then, ensure that we use the getter method to fetch the cover URL.
+	const sortedGames = sortUserPlaytimes(steamGames).slice(0, 5)
+	const extendedGames = sortedGames.filter(
+		(game): game is UserPlaytime<GameInfoExtended> => 'coverURL' in game.game
+	)
+
+	// Map the games to a serializable format that the frontend understands.
+	let games: SerializableGameInfo[] = extendedGames.map((game) => ({
+		id: game.game.id,
+		name: game.game.name,
+		playtime: game.minutes,
+		lastPlayed: game.lastPlayedAt,
+		coverURL: game.game.coverURL,
+		platform: 'steam'
+	}))
+
+	await redis.setex(`steam:${STEAM_ID}`, CACHE_TTL, JSON.stringify(games))
+	return games
+}