Add DNS diagnostics across dataplane and client

src/server/http/routes/connectivityDiagnosticsRoute.ts

@@ -4,7 +4,7 @@ import type { ConnectivityDiagnosticsUseCase } from '../../features/diagnostics/
 import { sendJson } from '../response.js';
 
 interface ConnectivityDiagnosticsRouteDependencies {
-  diagnostics: Pick<ConnectivityDiagnosticsUseCase, 'run' | 'updateSettings'>;
+  diagnostics: Pick<ConnectivityDiagnosticsUseCase, 'run' | 'dnsCatalog' | 'runDns' | 'updateSettings'>;
   readBody(req: IncomingMessage): Promise<Record<string, unknown>>;
   sendState(res: ServerResponse): Promise<void>;
 }
@@ -14,6 +14,15 @@ export function createConnectivityDiagnosticsRoute(
 ) {
   return {
     async handle(req: IncomingMessage, res: ServerResponse) {
+      if (req.url === '/api/diagnostics/dns' && req.method === 'GET') {
+        sendJson(res, 200, await dependencies.diagnostics.dnsCatalog());
+        return true;
+      }
+      if (req.url === '/api/diagnostics/dns' && req.method === 'POST') {
+        const { domainId, resolverId = null } = await dependencies.readBody(req);
+        sendJson(res, 200, await dependencies.diagnostics.runDns(domainId, resolverId));
+        return true;
+      }
       if (req.url === '/api/diagnostics/connectivity' && req.method === 'POST') {
         const { target = null } = await dependencies.readBody(req);
         const result = await dependencies.diagnostics.run(target);