Authorization: Bearer ********************curl --location --request POST '/coupons/redeem' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
"code": "string"
}'{
"success": true,
"message": "string",
"coupon_code": "string",
"coupon_value": 0,
"previous_balance": 0,
"new_balance": 0,
"error_code": "string"
}