improve

src/app/services/chat.service.ts

@@ -360,24 +360,30 @@ export class ChatService {
   }
 
   refreshtoken() {
-    this.headers = this.headers.set('Authorization', SessionStore.user.BasicAuthKey);
-    let options = {
-      headers: this.headers
-    };
-    return this.http.get(environment.apiURL + 'UserAuthentication/RegenereChatToken', options).subscribe(async res => {
-      let data = {
-        status: res['status'],
-        data: {
-          userId: res['data'].userId,
-          authToken: res['data'].authToken
+
+    if(this.headers) {
+      this.headers = this.headers.set('Authorization', SessionStore.user.BasicAuthKey);
+      let options = {
+        headers: this.headers
+      };
+      return this.http.get(environment.apiURL + 'UserAuthentication/RegenereChatToken', options).subscribe(async res => {
+        let data = {
+          status: res['status'],
+          data: {
+            userId: res['data'].userId,
+            authToken: res['data'].authToken
+          }
         }
-      }
-      SessionStore.user.ChatData = data
-      SessionStore.save()
+        SessionStore.user.ChatData = data
+        SessionStore.save()
+        this.setheader()
+        // console.log(res)
+        // console.log(SessionStore.user.ChatData)
+      });
+    } else {
       this.setheader()
-      // console.log(res)
-      // console.log(SessionStore.user.ChatData)
-    });
+    }
+
   }
 
 }