I am creating a web application for my investment using Zerodha API as per your document, Every time I log in to use the API. Every day it's painful to create access_token. How to get refresh_token ?
This actually comes from point 6.c here. We're required to ensure that there's some session timeout. We use 1 day for this, but it could be shorter too.
A refresh_token is provided only for the platforms that are built for mass and not for individual users.