Create Record In Odoo From External Applications | Odoo External API

Thank you so much for the help :)
I have a question, what if you want to create multiple records at the same time?
What would the correct format ?

How to Upload files using webservice api?

I really appreciate your videos. They are very helpful and clear to follow. You're a great instructor.

Please make vedio for account in construction company
Please guide any function
Vendor bill
Contractor bill
Local purchase
Wages
Bank balance
I wanna learn