Server-to-Server Integration

The server-to-server (S2S) integration sends conversion events directly from your backend to the Prisjakt API. Because no browser-side code is involved in reporting, this approach is unaffected by ad blockers, browser privacy restrictions, and Apple ITP.

Requirements

Your Pixel ID from Prisjakt Business Center (Integrations > Conversion Tracking).
Access to your backend server to perform HTTP requests to Prisjakt Click & Conversion API.

Step 1: Enable Conversion Tracking

You can skip this step if you already enabled conversion tracking, and have a Pixel ID.

Log in to Prisjakt Business Center.
Navigate to Integrations > Conversion Tracking.
Enable Prisjakt Click ID. Your Pixel ID will appear — keep it safe.

Step 2: Capture the `pjclid` Parameter

When a user arrives from a Prisjakt listing, the URL contains a pjclid query parameter:

https://www.example.com/product?pjclid=239cd31f-9d43-4cb4-b8dc-2057fe18c289_1b05fa7f1c34d125

You must capture and persist this value so it can be included when the purchase is reported. There are two ways to do this:

Option A — Use the browser script for capture only.

Load the pjpixel browser script on the pages where traffic can land from Prisjakt - usually home, product, and promotion pages. The script handles pjclid capture automatically. You should skip the pjpixel.track step, as that will be handled by your backend.
At checkout, retrieve the stored values with pjpixel.getConversion() and pass clickId to your backend. For convenience, your pixelId is also returned from pjpixel.getConversion().

Option B — Capture manually.

On each page load, parse the URL for the pjclid parameter and save the value in a first-party cookie.
Retrieve it at checkout to include in the conversion request. Store it for 30 days to cover the full conversion window.

Step 3: Report the Conversion

When a purchase is completed, send a POST request from your server to the Click & Conversion API.

Endpoint

POST https://api.pj.nu/click-conversion/pixels/{pixel_id}/events

Replace {pixel_id} with your Pixel ID from Step 1.

Headers

Content-Type: application/json
Accept: application/json

Request body

{
  "event_name": "purchase",
  "event_time": "2024-06-15T12:30:00Z",
  "external_event_id": "order-7h1k9px-r4zgm3",
  "data": {
    "amount": 122.95,
    "currency": "EUR",
    "number_of_items": 4
  },
  "signed_click_id": "239cd31f-9d43-4cb4-b8dc-2057fe18c289_1b05fa7f1c34d125"
}

Field	Required	Description
`event_name`	Yes	Always `"purchase"`
`event_time`	No	ISO 8601 UTC timestamp of the purchase. Defaults to the time the request was received.
`external_event_id`	Recommended	Your order or transaction ID (1–100 characters). Prevents duplicate events: a second request with the same ID within 30 days returns `409 Conflict`.
`data.amount`	Yes	Total transaction value. Must be between `0` and `999999999`.
`data.currency`	Yes	ISO 4217 code. Supported values: `DKK`, `EUR`, `GBP`, `NOK`, `NZD`, `SEK`
`data.number_of_items`	No	Number of items in the order. Must be between `0` and `999999999`.
`signed_click_id`	Yes	The `pjclid`/`clickId` value captured in Step 2.

Example cURL request

curl --request POST \
  --url https://api.pj.nu/click-conversion/pixels/<your-pixel-id>/events \
  --header 'Content-Type: application/json' \
  --data '{
  "event_name": "purchase",
  "event_time": "2024-06-15T12:30:00Z",
  "external_event_id": "order-7h1k9px-r4zgm3",
  "data": {
    "amount": 122.95,
    "currency": "EUR",
    "number_of_items": 4
  },
  "signed_click_id": "239cd31f-9d43-4cb4-b8dc-2057fe18c289_1b05fa7f1c34d125"
}'

See the full API reference for all parameters, response codes, and schema details.

Testing Your Integration

Step 1: Send a test conversion

You can validate your backend integration without needing a real click from Prisjakt. Use event_name: "test-purchase" with any UUID as the signed_click_id:

curl --request POST \
  --url https://api.pj.nu/click-conversion/pixels/<your-pixel-id>/events \
  --header 'Content-Type: application/json' \
  --data '{
  "event_name": "test-purchase",
  "event_time": "2024-06-15T12:30:00Z",
  "external_event_id": "test-order-001",
  "data": {
    "amount": 100.00,
    "currency": "EUR",
    "number_of_items": 1
  },
  "signed_click_id": "52907745-7672-470e-a803-a2f8feb52944"
}'

test-purchase events accept any UUID as the signed_click_id — they do not require a signed click ID from an actual Prisjakt click. A successful request returns 201 Created.

Tip: Use a recognizable external_event_id to easily identify the test event in Business Center, and to prevent duplicate reporting if you re-send the same request.

Step 2: Confirm the event was received

Query the events endpoint filtering by event_name=test-purchase to confirm the event was stored. The endpoint requires a from/to date interval — set these to cover when you sent the test event:

curl --request GET \
  --url 'https://api.pj.nu/click-conversion/pixels/<your-pixel-id>/events?event_name=test-purchase&from=2024-06-15T00:00:00Z&to=2024-06-16T00:00:00Z' \
  --header 'Authorization: Bearer <your-token>'

If your event appears in the response, the full pipeline — from your server to the Prisjakt API — is working correctly.

Requirements​

Step 1: Enable Conversion Tracking​

Step 2: Capture the pjclid Parameter​

Step 3: Report the Conversion​

Testing Your Integration​

Step 1: Send a test conversion​

Step 2: Confirm the event was received​