Coupon Management API Documentation

GET /api/coupons

List all coupons with optional filtering (requires administrator access)

Headers:

Authorization: Bearer ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr...

Query Parameters:

sort - JSON array with interface name and direction ["interfaceName","ASC|DESC"]
Example: sort=["name","ASC"] - Sort by name in ascending order
page - Page number (1-based)
Example: page=1 - Get the first page
perPage - Number of items per page
Example: perPage=10 - Show 10 items per page
filter - JSON object with interface name/value pairs for filtering {"interfaceName1":"value1","interfaceName2":value2}
Example: filter={"name":"Summer"} - Filter coupons with name containing "Summer"

Special filter: Global Search
Using the key q in the filter will search across all text columns:
Example: filter={"q":"discount","isActive":true} - Find active coupons with "discount" in any text field
active - Filter by active status (true/false)
syncWithStripe - Whether to sync with Stripe before fetching data (default: true)

Example Requests:

GET /api/coupons?page=1&perPage=10&sort=["id","ASC"]&filter={"name":"Summer"}&syncWithStripe=true

GET /api/coupons?page=2&perPage=20&filter={"q":"discount","isActive":true}

Response (200 OK):

{
    "data": [
        {
            "id": 1,
            "stripeCouponId": "Q9Wpvk4o",
            "name": "Summer Discount",
            "couponTypeCode": "DISC",
            "couponTypeName": "Discount Percentage",
            "discountPercentage": 20,
            "trialDays": null,
            "couponDurationTypeCode": "ONCE",
            "couponDurationTypeName": "Once",
            "durationInMonths": null,
            "isActive": true,
            "createdAt": "2023-07-15T14:25:00Z",
            "updatedAt": null,
            "timesRedeemed": 45,
            "promotions": [
                {
                    "id": 1,
                    "name": "Summer Sale",
                    "description": "20% off summer products",
                    "stripePromotionCodeId": "promo_1NcL5GJ8oAJtHC9rnvmaJ4Hl",
                    "code": "SUMMER20",
                    "couponId": 1,
                    "maxRedemptions": 100,
                    "redemptionCount": 45,
                    "validUntil": "2023-09-30T23:59:59Z",
                    "isActive": true,
                    "createdAt": "2023-07-15T14:25:00Z",
                    "updatedAt": null
                }
            ]
        }
        // Additional coupon objects...
    ],
    "total": 10
}

Headers:

Content-Range: coupons 0-9/10
Accept-Range: coupons
Access-Control-Expose-Headers: Content-Range
X-Total-Count: 10

Error Responses:

{
    "message": "Administrator access required"
}

Notes:

The syncWithStripe parameter ensures coupon data is synchronized with Stripe before filtering
The response includes pagination metadata in headers
Promotions array includes all promotion codes associated with each coupon
The timesRedeemed field comes from Stripe data

GET /api/coupons/:id

Get details of a specific coupon by ID (requires administrator access)

Headers:

Authorization: Bearer ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr...

Response (200 OK):

{
    "id": 1,
    "stripeCouponId": "Q9Wpvk4o",
    "name": "Welcome Discount",
    "couponTypeCode": "DISC",
    "couponTypeName": "Discount Percentage",
    "discountPercentage": 20,
    "trialDays": null,
    "couponDurationTypeCode": "ONCE",
    "couponDurationTypeName": "Once",
    "durationInMonths": null,
    "isActive": true,
    "createdAt": "2023-01-15T08:30:00Z",
    "updatedAt": null,
    "timesRedeemed": 45,
    "promotions": [
        {
            "id": 1,
            "name": "Summer Promo",
            "description": "Summer promotion code",
            "stripePromotionCodeId": "promo_1NcL5GJ8oAJtHC9rnvmaJ4Hl",
            "code": "SUMMER20",
            "couponId": 1,
            "maxRedemptions": 100,
            "redemptionCount": 45,
            "validUntil": "2023-09-30T23:59:59Z",
            "isActive": true,
            "createdAt": "2023-07-15T14:25:00Z",
            "updatedAt": null
        }
    ]
}

Error Responses:

{
    "message": "Administrator access required"
}

{
    "message": "Invalid coupon ID"
}

{
    "message": "Coupon not found"
}

Notes:

This endpoint syncs the specific coupon with Stripe before returning the data
If the coupon doesn't exist in Stripe, it will be removed from the database
The timesRedeemed field reflects the current usage from Stripe

GET /api/coupons/metadata

Get metadata about coupon types and duration types (requires administrator access)

Headers:

Authorization: Bearer ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr...

Response (200 OK):

{
    "couponTypes": [
        {
            "code": "DISC",
            "name": "Discount Percentage"
        },
        {
            "code": "TRIA",
            "name": "Free Trial"
        }
    ],
    "durationTypes": [
        {
            "code": "ONCE",
            "name": "Once",
            "value": "once"
        },
        {
            "code": "REPE",
            "name": "Repeating",
            "value": "repeating"
        },
        {
            "code": "FORE", 
            "name": "Forever",
            "value": "forever"
        }
    ]
}

Error Responses:

{
    "message": "Administrator access required"
}

Notes:

This endpoint syncs with Stripe before returning metadata to ensure data consistency
The value field in duration types corresponds to Stripe's duration values

POST /api/coupons

Create a new coupon (requires administrator access and CSRF token)

Headers:

Authorization: Bearer ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr...
x-csrf-token: a8d7f9c6e5b4a3c2d1e0f9a8d7f6c5b4a3

Request Body (Percentage Discount Coupon):

{
    "name": "Back to School",
    "couponType": "DISC",
    "percentOff": 25,
    "duration": "once"
}

Request Body (Free Trial Coupon):

{
    "name": "Extended Trial",
    "couponType": "TRIA",
    "trialDays": 30,
    "duration": "once"
}

Request Body (Repeating Discount):

{
    "name": "Three Month Discount",
    "couponType": "DISC",
    "percentOff": 10,
    "duration": "repeating",
    "durationInMonths": 3
}

Response (201 Created):

{
    "message": "Coupon created successfully",
    "coupon": {
        "id": 3,
        "stripeCouponId": "coupon_1234567890",
        "name": "Back to School",
        "couponTypeCode": "DISC",
        "couponTypeName": "Discount Percentage",
        "discountPercentage": 25,
        "trialDays": null,
        "couponDurationTypeCode": "ONCE",
        "couponDurationTypeName": "Once",
        "durationInMonths": null,
        "isActive": true,
        "createdAt": "2023-07-15T14:25:00Z",
        "updatedAt": null
    }
}

Error Responses:

{
    "message": "Administrator access required"
}

{
    "message": "Missing required fields: name, couponType, and duration are required"
}

{
    "message": "Invalid coupon type. Must be either DISC (discount percentage) or TRIA (free trial)"
}

{
    "message": "Percentage discount coupons require percentOff value"
}

{
    "message": "Free trial coupons require trialDays value"
}

{
    "message": "Invalid duration. Must be once, repeating, or forever"
}

{
    "message": "durationInMonths is required for repeating coupons"
}

{
    "message": "Failed to create coupon",
    "error": "Error creating coupon in Stripe"
}

Notes:

The coupon is created in both Stripe and the local database
System syncs with Stripe before creating to ensure data consistency
Auto-generated code is used internally; promotion codes are created separately

POST /api/coupons/validate

Validate a coupon code (requires authentication)

Headers:

Authorization: Bearer ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr...

Request Body:

{
    "couponCode": "SUMMER20"
}

Response (200 OK) - Valid Coupon:

{
    "valid": true,
    "couponDetails": {
        "type": "DISC",
        "name": "Summer Discount",
        "discountPercentage": 20,
        "trialDays": null
    }
}

Response (200 OK) - Valid Trial Coupon:

{
    "valid": true,
    "couponDetails": {
        "type": "TRIA",
        "name": "Extended Trial",
        "discountPercentage": null,
        "trialDays": 30
    }
}

Response (200 OK) - Invalid Coupon:

{
    "valid": false,
    "message": "Coupon code is invalid or expired"
}

Response (200 OK) - Maximum Uses Reached:

{
    "valid": false,
    "message": "This coupon code has reached its maximum number of uses"
}

Error Responses:

{
    "message": "Authentication required"
}

{
    "message": "Coupon code is required"
}

{
    "message": "Failed to validate coupon",
    "error": "Error message from service"
}

Notes:

This endpoint validates promotion codes, not coupon IDs directly
Checks both coupon and promotion validity, expiration, and redemption limits
Syncs with Stripe before validation to ensure up-to-date data

PUT /api/coupons/:id

Update a coupon (currently only supports toggling active status) (requires administrator access and CSRF token)

Headers:

Authorization: Bearer ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr...
x-csrf-token: a8d7f9c6e5b4a3c2d1e0f9a8d7f6c5b4a3

Request Body:

{
    "isActive": false
}

Response (200 OK):

{
    "message": "Coupon updated successfully",
    "coupon": {
        "id": 1,
        "stripeCouponId": "Q9Wpvk4o",
        "name": "Welcome Discount",
        "couponTypeCode": "DISC",
        "couponTypeName": "Discount Percentage",
        "discountPercentage": 20,
        "trialDays": null,
        "couponDurationTypeCode": "ONCE",
        "couponDurationTypeName": "Once",
        "durationInMonths": null,
        "isActive": false,
        "createdAt": "2023-01-15T08:30:00Z",
        "updatedAt": "2023-07-15T16:45:00Z"
    }
}

Error Responses:

{
    "message": "Administrator access required"
}

{
    "message": "Invalid coupon ID"
}

{
    "message": "No update parameters provided"
}

{
    "message": "Coupon not found"
}

Notes:

Updates are synchronized with Stripe before and after the operation
Only the isActive field can currently be modified
Setting isActive to false effectively disables the coupon

DELETE /api/coupons/:id

Delete a coupon (requires administrator access and CSRF token)

Headers:

Authorization: Bearer ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr...
x-csrf-token: a8d7f9c6e5b4a3c2d1e0f9a8d7f6c5b4a3

Response (200 OK):

{
    "message": "Coupon deleted successfully"
}

Error Responses:

{
    "message": "Administrator access required"
}

{
    "message": "Invalid coupon ID"
}

{
    "message": "Coupon not found"
}

{
    "message": "Cannot delete coupon with linked promotions. Delete the promotions first."
}

Notes:

Deletion is synchronized with Stripe - the coupon is removed from both systems
Cannot delete coupons that have associated promotions - those must be deleted first
This is a permanent operation and cannot be undone

Coupon Management Endpoints Index

Coupon Management