In order to generate a user session token, you need to first create the session. Details regarding the generation of session tokens using QuickBlox Server/REST API can be found here: Authentication.
If you use QuickBlox SDKs, please check the “Authentication” section in the corresponding SDK documentation here:
iOS SDK - Authentication | iOS SDK | QuickBlox
Android SDK - Authentication | Android SDK | QuickBlox
React Native SDK - Authentication | React Native SDK | QuickBlox
Flutter SDK - Authentication | Flutter SDK | QuickBlox
Make sure that you have a QuickBlox account before starting integration of QuickBlox SDKs or API.
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.