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 }
+		);
+	}
+};
+