Simple JWT token , Django rest framework (DRF) accessing the access and refresh token

Question

When using the simple jwt in django rest framework. what is the best way to access the new access token using the refresh token ?

Using the url ==> api/refresh/token or sending the access and refresh token in the header and updating it and reassigning it back to the header

I am building a project , where frontend i am using react and backend drf . so i want to know the best approach for it .