From 6c8e4c85df8d34cd525696134fe9fc65f66786e5 Mon Sep 17 00:00:00 2001
From: Alek Angelov <alek.angelov.sk@gmail.com>
Date: Tue, 13 Dec 2022 12:19:47 +0100
Subject: [PATCH 1/3] feat: add prevent broadcast option in QueryManager

---
 src/core/ApolloClient.ts | 7 +++++++
 src/core/QueryManager.ts | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/src/core/ApolloClient.ts b/src/core/ApolloClient.ts
index b26da37e579..fae22119ca4 100644
--- a/src/core/ApolloClient.ts
+++ b/src/core/ApolloClient.ts
@@ -60,6 +60,7 @@ export type ApolloClientOptions<TCacheShape> = {
   fragmentMatcher?: FragmentMatcher;
   name?: string;
   version?: string;
+  notifyOnTeardown?: boolean;
 };
 
 // Though mergeOptions now resides in @apollo/client/utilities, it was
@@ -123,6 +124,10 @@ export class ApolloClient<TCacheShape> implements DataProxy {
    *                version of your client, which you may want to increment on
    *                new builds. This is NOT the version of Apollo Client that
    *                you are using.
+   *
+   * @param notifyOnTeardown Defaults to true, but when set to false will
+   *                         prevent the client from notifying any active queries.
+   *                         Could result in substantial performance gains in some cases.
    */
   constructor(options: ApolloClientOptions<TCacheShape>) {
     const {
@@ -147,6 +152,7 @@ export class ApolloClient<TCacheShape> implements DataProxy {
       fragmentMatcher,
       name: clientAwarenessName,
       version: clientAwarenessVersion,
+      notifyOnTeardown = true
     } = options;
 
     let { link } = options;
@@ -253,6 +259,7 @@ export class ApolloClient<TCacheShape> implements DataProxy {
           });
         }
       } : void 0,
+      notifyOnTeardown
     });
   }
 
diff --git a/src/core/QueryManager.ts b/src/core/QueryManager.ts
index 36fac27ef13..9b6a58d3bbf 100644
--- a/src/core/QueryManager.ts
+++ b/src/core/QueryManager.ts
@@ -85,6 +85,7 @@ export class QueryManager<TStore> {
   public link: ApolloLink;
   public defaultOptions: DefaultOptions;
 
+  public readonly notifyOnTeardown: boolean;
   public readonly assumeImmutableResults: boolean;
   public readonly ssrMode: boolean;
 
@@ -115,6 +116,7 @@ export class QueryManager<TStore> {
     clientAwareness = {},
     localState,
     assumeImmutableResults,
+    notifyOnTeardown = true
   }: {
     cache: ApolloCache<TStore>;
     link: ApolloLink;
@@ -125,6 +127,7 @@ export class QueryManager<TStore> {
     clientAwareness?: Record<string, string>;
     localState?: LocalState<TStore>;
     assumeImmutableResults?: boolean;
+    notifyOnTeardown?: boolean;
   }) {
     this.cache = cache;
     this.link = link;
@@ -134,6 +137,7 @@ export class QueryManager<TStore> {
     this.localState = localState || new LocalState({ cache });
     this.ssrMode = ssrMode;
     this.assumeImmutableResults = !!assumeImmutableResults;
+    this.notifyOnTeardown = !!notifyOnTeardown;
     if ((this.onBroadcast = onBroadcast)) {
       this.mutationStore = Object.create(null);
     }
@@ -915,6 +919,7 @@ export class QueryManager<TStore> {
 
   public stopQuery(queryId: string) {
     this.stopQueryNoBroadcast(queryId);
+    if(!this.notifyOnTeardown) return;
     this.broadcastQueries();
   }
 

From 05d7f86c8194883db5e0aea556bfdc68643b6658 Mon Sep 17 00:00:00 2001
From: Alek Angelov <alek.angelov.sk@gmail.com>
Date: Tue, 13 Dec 2022 12:53:35 +0100
Subject: [PATCH 2/3] chore(changeset): added changeset for patch

---
 .changeset/giant-icons-sit.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/giant-icons-sit.md

diff --git a/.changeset/giant-icons-sit.md b/.changeset/giant-icons-sit.md
new file mode 100644
index 00000000000..50f3b54cf7d
--- /dev/null
+++ b/.changeset/giant-icons-sit.md
@@ -0,0 +1,5 @@
+---
+"@apollo/client": patch
+---
+
+Added option to prevent broadcasting on query teardown. May increase performance.

From 2e68a732baf7132e666e271a5cc7c4c9c3f0d6c4 Mon Sep 17 00:00:00 2001
From: Alek Angelov <alek.angelov.sk@gmail.com>
Date: Tue, 13 Dec 2022 13:00:26 +0100
Subject: [PATCH 3/3] chore(filesize): bump filesize limit by 0.03KB

---
 config/bundlesize.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/bundlesize.ts b/config/bundlesize.ts
index b628fb88013..37cf95e8f51 100644
--- a/config/bundlesize.ts
+++ b/config/bundlesize.ts
@@ -3,7 +3,7 @@ import { join } from "path";
 import { gzipSync } from "zlib";
 import bytes from "bytes";
 
-const gzipBundleByteLengthLimit = bytes("31.87KB");
+const gzipBundleByteLengthLimit = bytes("31.9KB");
 const minFile = join("dist", "apollo-client.min.cjs");
 const minPath = join(__dirname, "..", minFile);
 const gzipByteLen = gzipSync(readFileSync(minPath)).byteLength;