feat: federation instance list and api/healthz improvements

src/routes/api/federation/info/+server.ts

@@ -0,0 +1,34 @@
+import { json } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+import { database } from '$lib/database/db';
+import { events } from '$lib/database/schema';
+import { eq, count } from 'drizzle-orm';
+import { logger } from '$lib/logger';
+import federationConfig from '../../../../../federation.config.js';
+
+export const GET: RequestHandler = async () => {
+	try {
+		// Count public events
+		const publicEventsCount = await database
+			.select({ count: count() })
+			.from(events)
+			.where(eq(events.visibility, 'public'));
+
+		const countValue = publicEventsCount[0]?.count || 0;
+
+		return json({
+			name: federationConfig.name,
+			publicEventsCount: countValue
+		});
+	} catch (error) {
+		logger.error({ error }, 'Error fetching federation info from API');
+		return json(
+			{
+				error: 'Failed to fetch federation info',
+				message: error instanceof Error ? error.message : 'Unknown error'
+			},
+			{ status: 500 }
+		);
+	}
+};
+

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

@@ -4,12 +4,24 @@ import { database } from '$lib/database/db';
 import { sql } from 'drizzle-orm';
 
 export async function GET() {
+	const startTime = performance.now();
 	try {
 		await database.execute(sql`select 1`);
-		return json({ ok: true }, { headers: { 'cache-control': 'no-store' } });
-	} catch (err) {
+		const responseTime = Math.round(performance.now() - startTime);
 		return json(
-			{ ok: false, error: (err as Error)?.message, message: 'Database unreachable.' },
+			{ ok: true, responseTime, responseTimeUnit: 'ms' },
+			{ headers: { 'cache-control': 'no-store' } }
+		);
+	} catch (err) {
+		const responseTime = Math.round(performance.now() - startTime);
+		return json(
+			{
+				ok: false,
+				error: (err as Error)?.message,
+				message: 'Database unreachable.',
+				responseTime,
+				responseTimeUnit: 'ms'
+			},
 			{ status: 503, headers: { 'cache-control': 'no-store' } }
 		);
 	}