fix: race condition in client.listen memory leak (#805)

sanity-io · May 13, 2024 · d2e468a · d2e468a
1 parent d9c832d
commit d2e468a
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Showing 3 changed files with 7 additions and 3 deletions.
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sanity/client",
-  "version": "6.18.0",
+  "version": "6.18.1-canary.0",
   "description": "Client for retrieving, creating and patching data from Sanity.io",
   "keywords": [
     "sanity",

diff --git a/src/data/listen.ts b/src/data/listen.ts
@@ -171,6 +171,10 @@ export function _listen<R extends Record<string, Any> = Record<string, Any>>(
         .then((eventSource) => {
           if (eventSource) {
             es = eventSource
+            // Handle race condition where the observer is unsubscribed before the EventSource is set up
+            if (unsubscribed) {
+              unsubscribe()
+            }
           }
         })
         .catch((reason) => {