From f8d83f8273aa7d66f5df8994f46b119d30db0771 Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Mon, 25 Nov 2019 14:14:10 +0000
Subject: [PATCH] Stop using Bluebird::mapSeries

---
 src/sync.js  | 6 +++---
 src/utils.js | 6 ++++++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/sync.js b/src/sync.js
index 590cc16b4..a5e1ab12c 100644
--- a/src/sync.js
+++ b/src/sync.js
@@ -1150,7 +1150,7 @@ SyncApi.prototype._processSyncResponse = async function(
     });
 
     // Handle joins
-    await Promise.mapSeries(joinRooms, async function(joinObj) {
+    await utils.promiseMapSeries(joinRooms, async function(joinObj) {
         const room = joinObj.room;
         const stateEvents = self._mapSyncEventsFormat(joinObj.state, room);
         const timelineEvents = self._mapSyncEventsFormat(joinObj.timeline, room);
@@ -1278,8 +1278,8 @@ SyncApi.prototype._processSyncResponse = async function(
             }
         }
 
-        await Promise.mapSeries(stateEvents, processRoomEvent);
-        await Promise.mapSeries(timelineEvents, processRoomEvent);
+        await utils.promiseMapSeries(stateEvents, processRoomEvent);
+        await utils.promiseMapSeries(timelineEvents, processRoomEvent);
         ephemeralEvents.forEach(function(e) {
             client.emit("event", e);
         });
diff --git a/src/utils.js b/src/utils.js
index 49863ecd8..c24df57aa 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -731,3 +731,9 @@ module.exports.defer = () => {
 
     return {resolve, reject, promise};
 };
+
+module.exports.promiseMapSeries = async (promises, fn) => {
+    for (const o of await promises) {
+        await fn(await o);
+    }
+};