We need to expose the usageLimit field in the /api/v1/discounts/code endpoint to allow for single-use discount codes via REST API. Currently, we are unable to set a limit on the discounts created through this endpoint, which is essential for unique redeem codes. This feature would assist users in automating their discount code usage effectively and improve overall experience with the app.

P.S. This feature request was generated via AI, based on the conversation with the customer.