From 75b60a845e2687744f93cce57a69f57c0dc2b305 Mon Sep 17 00:00:00 2001
From: Hangzhi Yu <hangzhi@protonmail.com>
Date: Fri, 5 May 2023 19:28:17 +0200
Subject: [PATCH] Enable gql batch queying

---
 CHANGELOG.rst                       | 1 +
 aleksis/core/frontend/app/apollo.js | 8 ++++++--
 aleksis/core/settings.py            | 1 +
 aleksis/core/urls.py                | 2 +-
 4 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 13a7f30ed..1d1501bfa 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -34,6 +34,7 @@ Added
 * Provide API endpoint for system status.
 * [Dev] UpdateIndicator Vue Component to display the status of interactive pages
 * [Dev] DeleteDialog Vue Component to unify item deletion in the new frontend
+* Use build-in mechanism in Apollo for GraphQL batch querying.
 
 
 Changed
diff --git a/aleksis/core/frontend/app/apollo.js b/aleksis/core/frontend/app/apollo.js
index 267997b9f..519bc24aa 100644
--- a/aleksis/core/frontend/app/apollo.js
+++ b/aleksis/core/frontend/app/apollo.js
@@ -2,11 +2,12 @@
  * Configuration for Apollo provider, client, and caches.
  */
 
-import { ApolloClient, HttpLink, from } from "@/apollo-boost";
+import { ApolloClient, from } from "@/apollo-boost";
 
 import { RetryLink } from "@/apollo-link-retry";
 import { persistCache, LocalStorageWrapper } from "@/apollo3-cache-persist";
 import { InMemoryCache } from "@/apollo-cache-inmemory";
+import { BatchHttpLink } from "@/apollo-link-batch-http";
 
 // Cache for GraphQL query results in memory and persistent across sessions
 const cache = new InMemoryCache();
@@ -33,14 +34,17 @@ const links = [
   // Automatically retry failed queries
   new RetryLink(),
   // Finally, the HTTP link to the real backend (Django)
-  new HttpLink({
+  new BatchHttpLink({
     uri: getGraphqlURL(),
+    batchInterval: 200,
+    batchDebounce: true,
   }),
 ];
 
 /** Upstream Apollo GraphQL client */
 const apolloClient = new ApolloClient({
   cache,
+  shouldBatch: true,
   link: from(links),
 });
 
diff --git a/aleksis/core/settings.py b/aleksis/core/settings.py
index bf6f4ffde..656fcd30a 100644
--- a/aleksis/core/settings.py
+++ b/aleksis/core/settings.py
@@ -587,6 +587,7 @@ YARN_INSTALLED_APPS = [
     "@iconify/json@^2.1.30",
     "@mdi/font@^7.2.96",
     "apollo-boost@^0.4.9",
+    "apollo-link-batch-http@^1.2.14",
     "apollo-link-retry@^2.2.16",
     "apollo3-cache-persist@^0.14.1",
     "deepmerge@^4.2.2",
diff --git a/aleksis/core/urls.py b/aleksis/core/urls.py
index cc5d95452..7a22c7bb2 100644
--- a/aleksis/core/urls.py
+++ b/aleksis/core/urls.py
@@ -27,7 +27,7 @@ urlpatterns = [
     path("__icons__/", include("dj_iconify.urls")),
     path(
         "graphql/",
-        csrf_exempt(views.LoggingGraphQLView.as_view(graphiql=True)),
+        csrf_exempt(views.LoggingGraphQLView.as_view(batch=True)),
         name="graphql",
     ),
     path("logo", force_maintenance_mode_off(views.LogoView.as_view()), name="logo"),
-- 
GitLab