From c33f3cddcc97faae82fc4d719626d85db4317486 Mon Sep 17 00:00:00 2001
From: HoonBaek <hoon@sendbird.com>
Date: Fri, 7 Jan 2022 08:15:43 +0900
Subject: [PATCH] Check if nickname and profileUrl are null or empty string

---
 src/lib/dux/sdk/thunks.js | 5 ++++-
 src/utils/index.ts        | 7 +++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/lib/dux/sdk/thunks.js b/src/lib/dux/sdk/thunks.js
index 8fdc2900e..0bb7b1b38 100644
--- a/src/lib/dux/sdk/thunks.js
+++ b/src/lib/dux/sdk/thunks.js
@@ -7,6 +7,7 @@ import {
   SDK_ERROR,
 } from './actionTypes';
 import { INIT_USER, UPDATE_USER_INFO, RESET_USER } from '../user/actionTypes';
+import { isTextuallyNull } from '../../../utils';
 
 const APP_VERSION_STRING = '__uikit_app_version__';
 const IS_ROLLUP = '__is_rollup__';
@@ -66,7 +67,9 @@ export const handleConnection = ({
           userDispatcher({ type: INIT_USER, payload: user });
           // use nickname/profileUrl if provided
           // or set userID as nickname
-          if ((nickname !== user.nickname || profileUrl !== user.profileUrl) && (nickname !== '' || profileUrl !== '')) {
+          if ((nickname !== user.nickname || profileUrl !== user.profileUrl)
+            && !(isTextuallyNull(nickname) && isTextuallyNull(profileUrl))
+          ) {
             newSdk.updateCurrentUserInfo(nickname || user.nickname, profileUrl || user.profileUrl)
               .then((namedUser) => {
                 userDispatcher({ type: UPDATE_USER_INFO, payload: namedUser });
diff --git a/src/utils/index.ts b/src/utils/index.ts
index fc5ac52ca..fbcabbc47 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -96,6 +96,13 @@ const OutgoingMessageStates: OutgoingMessageStates = {
 
 export type CoreMessageType = AdminMessage | UserMessage | FileMessage;
 
+export const isTextuallyNull = (text: string): boolean => {
+  if (text === '' || text === null) {
+    return true;
+  }
+  return false;
+};
+
 export const isImage = (type: string): boolean => SUPPORTED_MIMES.IMAGE.indexOf(type) >= 0;
 export const isVideo = (type: string): boolean => SUPPORTED_MIMES.VIDEO.indexOf(type) >= 0;
 export const isGif = (type: string): boolean => type === 'image/gif';