how can I setup token base course selling plan

I want to sell token / coupon to customer. Each token allow customer to enroll 1 course.

Can I perform in joomdle side ?

Hi.

What you want cannot be done with Joomdle out of the box.

I remember some time ago I created a component for integrating with Awocoupon for something similar to what you want. Are you using any coupon component?
How are you going to sell the codes?

I am not sell code.

I want to sell number of lesson. For example, customer paid for 10 lesson. they can choose any 10 lesson to enroll.

You cannot do that with Joomdle right now.
Joomdle e-commerce integration is done treating courses as normal products, where you pay for the one(s) you want.
There is no way to buy a number of undetermined courses and then select which courses you want.