Multiple fixes to major performance issues with teams with 50+ users

web/react/utils/async_client.jsx

@@ -588,13 +588,21 @@ export function getMe() {
 }
 
 export function getStatuses() {
-    if (isCallInProgress('getStatuses')) {
+    const directChannels = ChannelStore.getAll().filter((channel) => channel.type === Constants.DM_CHANNEL);
+
+    const teammateIds = [];
+    for (var i = 0; i < directChannels.length; i++) {
+        const teammate = utils.getDirectTeammate(directChannels[i].id);
+        teammateIds.push(teammate.id);
+    }
+
+    if (isCallInProgress('getStatuses') || teammateIds.length === 0) {
         return;
     }
 
     callTracker.getStatuses = utils.getTimestamp();
-    client.getStatuses(
-        function getStatusesSuccess(data, textStatus, xhr) {
+    client.getStatuses(teammateIds,
+        (data, textStatus, xhr) => {
             callTracker.getStatuses = 0;
 
             if (xhr.status === 304 || !data) {
@@ -606,7 +614,7 @@ export function getStatuses() {
                 statuses: data
             });
         },
-        function getStatusesFailure(err) {
+        (err) => {
             callTracker.getStatuses = 0;
             dispatchError(err, 'getStatuses');
         }

web/react/utils/client.jsx

@@ -1069,12 +1069,13 @@ export function exportTeam(success, error) {
     });
 }
 
-export function getStatuses(success, error) {
+export function getStatuses(ids, success, error) {
     $.ajax({
         url: '/api/v1/users/status',
         dataType: 'json',
         contentType: 'application/json',
-        type: 'GET',
+        type: 'POST',
+        data: JSON.stringify(ids),
         success,
         error: function onError(xhr, status, err) {
             var e = handleError('getStatuses', xhr, status, err);

web/react/utils/constants.jsx

@@ -127,6 +127,7 @@ module.exports = {
     MAX_DMS: 20,
     DM_CHANNEL: 'D',
     OPEN_CHANNEL: 'O',
+    PRIVATE_CHANNEL: 'P',
     INVITE_TEAM: 'I',
     OPEN_TEAM: 'O',
     MAX_POST_LEN: 4000,