Facing issue with Fyers API v3 auth code generation and token generation for my app. Using the same sample provided in https://myapi.fyers.in/docsv3#tag/Authentication-and-Login-Flow-User-Apps/paths/~1Authentication%20&%20Login%20Flow%20-%20User%20Apps/post . Could you please provide sample to use the same using python. Also please let me know if there is a portal to check if the api's are down during which days and time. Thanks in advance.