feat(api): add DNS caching

fix #387 #657 #728

package.json

@@ -44,6 +44,7 @@
     "axios-rate-limit": "1.3.0",
     "bcrypt": "5.1.0",
     "bowser": "2.11.0",
+    "cacheable-lookup": "^7.0.0",
     "connect-typeorm": "1.1.4",
     "cookie-parser": "1.4.6",
     "copy-to-clipboard": "3.3.3",

server/index.ts

@@ -23,6 +23,7 @@ import imageproxy from '@server/routes/imageproxy';
 import { getAppVersion } from '@server/utils/appVersion';
 import restartFlag from '@server/utils/restartFlag';
 import { getClientIp } from '@supercharge/request-ip';
+import type CacheableLookupType from 'cacheable-lookup';
 import { TypeormStore } from 'connect-typeorm/out';
 import cookieParser from 'cookie-parser';
 import csurf from 'csurf';
@@ -32,10 +33,14 @@ import * as OpenApiValidator from 'express-openapi-validator';
 import type { Store } from 'express-session';
 import session from 'express-session';
 import next from 'next';
+import http from 'node:http';
+import https from 'node:https';
 import path from 'path';
 import swaggerUi from 'swagger-ui-express';
 import YAML from 'yamljs';
 
+const _importDynamic = new Function('modulePath', 'return import(modulePath)');
+
 const API_SPEC_PATH = path.join(__dirname, '../overseerr-api.yml');
 
 logger.info(`Starting Overseerr version ${getAppVersion()}`);
@@ -46,6 +51,12 @@ const handle = app.getRequestHandler();
 app
   .prepare()
   .then(async () => {
+    const CacheableLookup = (await _importDynamic('cacheable-lookup'))
+      .default as typeof CacheableLookupType;
+    const cacheable = new CacheableLookup();
+    cacheable.install(http.globalAgent);
+    cacheable.install(https.globalAgent);
+
     const dbConnection = await dataSource.initialize();
 
     // Run migrations in production

yarn.lock

@@ -5033,6 +5033,11 @@ cacache@^16.0.0, cacache@^16.1.0, cacache@^16.1.3:
     tar "^6.1.11"
     unique-filename "^2.0.0"
 
+cacheable-lookup@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/cacheable-lookup/-/cacheable-lookup-7.0.0.tgz#3476a8215d046e5a3202a9209dd13fec1f933a27"
+  integrity sha512-+qJyx4xiKra8mZrcwhjMRMUhD5NR1R8esPkzIYxX96JiecFoxAXFuz/GpR3+ev4PE1WamHip78wV0vcmPQtp8w==
+
 cachedir@2.3.0, cachedir@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/cachedir/-/cachedir-2.3.0.tgz#0c75892a052198f0b21c7c1804d8331edfcae0e8"