If you're using Stripe, LemonSqueezy, or Polar, you don't need to use this endpoint. We automatically track payments if you have connected your payment provider.

Create a payment

POST https://datafa.st/api/v1/payments

Track payments from any provider and attribute revenue to your traffic sources. Requires Bearer Token authentication.

Request body

Send a JSON object with the following fields:

Required fields

amount (number): Payment amount. Examples: 29.99 for $29.99, 0 for free trials
currency (string): Currency code like "USD", "EUR", "GBP"
transaction_id (string): Unique transaction ID from your payment provider

Optional fields

datafast_visitor_id (string): DataFast visitor ID from browser cookies. ⚠️ It's highly recommended to include this field for revenue attribution.
email (string): Customer email
name (string): Customer name
customer_id (string): Customer ID from your payment provider
renewal (boolean): Set to true if its a recurring payment. false by default
refunded (boolean): Set to true if its a refunded payment. false by default
timestamp (string): Payment timestamp (defaults to now)

Response

Success (200 OK): Returns confirmation message and transaction ID
Errors: See API Introduction

Here's an example of how to add payment data and attribute revenue using this API endpoint.

Something missing? Suggest features ✍️

// Send payment data to DataFast's API const handler = async (req, res) => { const datafast_visitor_id = req.cookies.datafast_visitor_id; try { const response = await fetch("https://datafa.st/api/v1/payments", { method: "POST", headers: { Authorization: `Bearer ${DATAFAST_API_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ amount: 29.99, currency: "USD", transaction_id: "payment_456", datafast_visitor_id: datafast_visitor_id, }), }); res.status(200).send("Payment tracked"); } catch (error) { console.error("Error tracking payment:", error); res.status(500).send("Failed to track payment"); } };