From 2455c3d50aad13e8198c7b7583267bec5064e09c Mon Sep 17 00:00:00 2001
From: Michael Lumish <mlumish@google.com>
Date: Mon, 26 Jul 2021 10:52:11 -0700
Subject: [PATCH] grpc-js-xds: notify watchers when NACKing resource updates

---
 packages/grpc-js-xds/src/xds-client.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/grpc-js-xds/src/xds-client.ts b/packages/grpc-js-xds/src/xds-client.ts
index ddca9284..6828a8a8 100644
--- a/packages/grpc-js-xds/src/xds-client.ts
+++ b/packages/grpc-js-xds/src/xds-client.ts
@@ -665,6 +665,11 @@ export class XdsClient {
         break;
     }
     if (serviceKind) {
+      this.adsState[serviceKind].reportStreamError({
+        code: status.UNAVAILABLE,
+        details: message,
+        metadata: new Metadata()
+      });
       resourceNames = this.adsState[serviceKind].getResourceNames();
       nonce = this.adsState[serviceKind].nonce;
       versionInfo = this.adsState[serviceKind].versionInfo;