Webhooks (Notification)

Our APIs use webhooks for event notifications. Webhooks are push API calls that let your app know an event has happened.

In order to receive notifications about the events in your platform, you have to previously configure the notification when you do the POST of the transaction, indicating the URL in the field callback.

Event

Whenever an event occurs, we will send you a notification in json format using HTTP POST to the URL that you specified.

Each JSON-formatted POST notification message contains event information based on the resource type and the event type.

Note: If your app responds with any other status code, we tries to resend the notification message 5 times over the course of three days.

Security - To prevent downgrade attacks

Every notification we send to your endpoint is signed. We do this by including a header named "SmartFastPay-Signature" in every event we send. This allows you to verify and ensure that the event was sent by SmartFastPay and not a third party.

Notification example

An example of a successful payment notification:

Successful Payment Notification

{
    "requestId": "456oc8d8-13e0-4db8-92b5-8dc54a433a97",
    "data": [
        {
            "id": "456oc8d8-13e0-4db8-92b5-8dc54a433a97",
            "customer_id": "2985746",
            "transaction_id": "193846",
            "amount": "213.21",
            "status": "paid",
            "type": "payment",
            "payment_status": "paid",
            "exchange": "5.52"
        }
    ]
}

Notification data details

Parameter	Description
id	The created transaction by the request made unique identificator.
customer_id	The customer id stored on your platform for future identification.
transaction_id	The id of the transaction generated in you platform.
amount	The amount that the client specified when initiating the transaction showed IN DOLLARS (use dot instead of comma)
status	The current status of the transaction. These are our statuses: paid, canceled
type	Shows the type of this transaction. payment or payout
payment_status	The current status of the payment. These are our statuses: paid, denied, expired
exchange	The exchange rate applied to the current transaction

An example of an unsuccessful payout notification

Unsuccessful Payout Notification

{
    "requestId": "398oca92-13e0-9db8-93b5-1dc24a323a97",
    "data": [
        {
            "id": "398oca92-13e0-9db8-93b5-1dc24a323a97",
            "customer_id": "2985746",
            "transaction_id": "193846",
            "amount": "398.45",
            "status": "canceled",
            "type": "payout",
            "payout_status": "failed",
            "exchange": "5.52"
        }
    ]
}

Notification data details

Parameter	Description
id	The created transaction by the request made unique identificator.
customer_id	The customer id stored on your platform for future identification.
transaction_id	The id of the transaction generated in you platform.
amount	The amount that the client specified when initiating the transaction showed IN DOLLARS (use dot instead of comma)
status	The current status of the transaction. These are our statuses: paid, canceled
type	Shows the type of this transaction. payment or payout
payout_status	The current status of the payment. These are our statuses: pending, success, failed, onhold, returned, refunded
exchange	The exchange rate applied to the current transaction