Refactored ads.txt to use .env file setting.

.env.example

@@ -1,2 +1,3 @@
+GOOGLE_ADSENSE_ADS_TXT="google.com, pub-1234567890abcdef, DIRECT, fedcba9876543210"
 GOOGLE_ANALYTICS_GTAG=G-1234567890
 SITE_URL=http://localhost

public/ads.txt

@@ -1 +0,0 @@
-google.com, pub-8937572456576531, DIRECT, f08c47fec0942fa0

src/config.ts

@@ -11,11 +11,13 @@ const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
 
 export interface ProcessEnv {
+    GOOGLE_ADSENSE_ADS_TXT?: string;
     GOOGLE_ANALYTICS_GTAG?: string;
     SITE_URL?: string;
 }
 
 export interface Config {
+    GoogleAdsenseAdsTxt: string;
     GoogleAnalyticsGTag: string;
     siteUrl: string;
 }
@@ -30,10 +32,12 @@ dotEnvConfig = dotenvExpand.expand({
     processEnv: process.env as dotenvExpand.DotenvParseInput
 });
 
-export const getGoogleAnalyticsGtag = () => env.GOOGLE_ANALYTICS_GTAG||'';
+export const getGoogleAnalyticsGtag = () => (env.GOOGLE_ANALYTICS_GTAG||``).trim();
-export const getSiteUrl = () => trimSlashes(env.SITE_URL||'http://localhost');
+export const getGoogleAdsenseAdsTxt = () => (env.GOOGLE_ADSENSE_ADS_TXT||``).trim()||`google.com, pub-1234567890abcdef, DIRECT, fedcba9876543210`;
+export const getSiteUrl = () => trimSlashes(env.SITE_URL||`http://localhost`);
 
 export const config: Config = {
     GoogleAnalyticsGTag: getGoogleAnalyticsGtag(),
+    GoogleAdsenseAdsTxt: getGoogleAdsenseAdsTxt(),
     siteUrl: getSiteUrl(),
 };

src/pages/ads.txt.ts

@@ -0,0 +1,12 @@
+import type { APIRoute } from 'astro';
+import { config } from "../config";
+
+const adsTxt = config.GoogleAdsenseAdsTxt;
+
+export const GET: APIRoute = () => {
+  return new Response(adsTxt, {
+    headers: {
+      'Content-Type': 'text/plain; charset=utf-8',
+    },
+  });
+};