Zynh0722/tba-matchup-summary
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persistent cache

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Zynh0722 2024-04-04 00:16:33 -07:00
parent 42cccc77f1
commit dea7825cbc
2 changed files with 27 additions and 6 deletions
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1
example.env
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@ -1 +1,2 @@
TBA_AUTH_KEY="your key here" TBA_AUTH_KEY="your key here"
CACHE_PATH=.cache

32
index.ts
View file

@ -1,8 +1,8 @@
import "dotenv/config"; import "dotenv/config";
const AUTH_KEY = Bun.env.TBA_AUTH_KEY; const AUTH_KEY = Bun.env.TBA_AUTH_KEY as string;
if (!AUTH_KEY) { if (!AUTH_KEY) {
process.exit(); process.exit(1);
} }
const authHeaders = new Headers({ const authHeaders = new Headers({
@ -17,7 +17,28 @@ interface CacheEntry {
staleTime: number; staleTime: number;
} }
const tbaCache: { [name: string]: CacheEntry } = {}; const CACHE_PATH = Bun.env.CACHE_PATH as string;
if (!CACHE_PATH) {
process.exit(1);
}
async function initializeCache() {
let data = {};
const cacheFile = Bun.file(".cache");
if (cacheFile.size > 0) {
data = JSON.parse(await cacheFile.text());
}
console.log(Object.keys(data));
return data;
}
const tbaCache: { [name: string]: CacheEntry } = await initializeCache();
async function writeCache() {
Bun.write(CACHE_PATH, JSON.stringify(tbaCache));
}
interface TBAResponse { interface TBAResponse {
data: string; data: string;
@ -31,7 +52,7 @@ function updateCache(
maxAge: number, maxAge: number,
) { ) {
if (etag) { if (etag) {
tbaCache[endpoint] = { etag, data, staleTime: Date.now() + maxAge }; tbaCache[endpoint] = { etag, data, staleTime: Date.now() + maxAge * 1000 };
} }
} }
@ -41,7 +62,6 @@ function fetchCache(endpoint: string) {
async function getTBAEndpoint(endpoint: string): Promise<TBAResponse> { async function getTBAEndpoint(endpoint: string): Promise<TBAResponse> {
const time = Date.now(); const time = Date.now();
console.log(tbaCache[endpoint]);
if (tbaCache[endpoint] && tbaCache[endpoint].staleTime > time) { if (tbaCache[endpoint] && tbaCache[endpoint].staleTime > time) {
console.log("Cache hit... " + endpoint); console.log("Cache hit... " + endpoint);
return { data: fetchCache(endpoint).data, status: 200 }; return { data: fetchCache(endpoint).data, status: 200 };
@ -80,5 +100,5 @@ async function getTBAEndpoint(endpoint: string): Promise<TBAResponse> {
const response = await getTBAEndpoint("/team/frc4043/events/simple"); const response = await getTBAEndpoint("/team/frc4043/events/simple");
console.log(response); writeCache();