The edX Marketing Team would like to offer discounts to students in an effort to entice users to upgrade to verified seats. Specifically, the team wishes to offer discounts in percentage form (e.g. 10% off) or fixed amount form (e.g. $10 off). Otto has support for both types of discounts, applied to single items or entire baskets of items, as well as practically any combination of conditional discounts we can imagine.
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API endpoints will be needed to expose models for creation, reading, and updating. The API will primarily be consumed by tools used to manage discounts, and the checkout page (to apply a voucher to an order).
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