How can I get a list of dialogs where a user is logged in?

A user can get a list of dialogs where their user ID is present among dialog participants.
For more information on this see:
API list dialogs request - Chat | Server API | QuickBlox

SDKs documentation:
iOS SDK - Dialogs | Chat | iOS SDK | QuickBlox
Android SDK - Dialogs | Chat | Android SDK | QuickBlox
JavaScript SDK - Dialogs | Chat | JavaScript SDK | QuickBlox
React Native SDK - Dialogs | Chat | React Native SDK | QuickBlox
Flutter SDK - Dialogs | Chat | Flutter SDK | QuickBlox

Feel free to check our official documentation for more information that will help you to integrate QuickBlox services into your applications / projects or contact our Support team by submitting a ticket if you have any other questions.