When a webhook-enabled event occurs, Marqeta issues an HTTPS POST to a pre-configured customer-hosted endpoint with information about the event. The customer must have an environment configured to listen for and process event notifications in order to take advantage of this functionality.

Marqeta pushes notifications for the following events:

  • Card Transition Events include activities such as a card being activated/deactivated, ordered, or shipped. From a technical point of view, they are activities that cause the transition of a card's state or fulfillment_status field.
  • Digital Wallet Token Transition Events include activities such as a digital wallet token being requested, activated, terminated, etc. From a technical point of view, they are activities that cause the transition of a token's state or fulfillment_status field.
  • Chargeback Transition Events mark the progress of disputes through the arbitration process. From a technical point of view, these events cause the transition of a chargeback object's state field.
  • Transaction Events include activities such as authorizations, authorization clearings, and refunds. Note: Although you might think of an authorization and authorization clearing as two parts of the same conceptual transaction, the Marqeta platform treats each transaction-related message exchange as a separate transaction event with a unique identifying token.

See Event Types for sample notification messages.

Run-Time Characteristics

These are the run-time characteristics of the Marqeta webhook system.

Name                                  Description
Number of Retry Attempts In case of a messaging failure, Marqeta attempts to resend a notification message 10 times. A messaging failure is defined as any HTTP response code other than 200.

Note: In the case of a Ping message failure, the message is not resent.
Retry Interval An exponential backoff increases the interval between retries by powers of 4 after each subsequent messaging failure. In other words, the retry interval follows this pattern: 41 (4) secs, 42 (16) secs, 43 (64) secs ... 410 secs (a little more than 12 days).
Maximum Batch Size Marqeta reduces the number of event notification messages by batching multiple notifications of the same type and sending them together in a single message. A maximum of 20 transaction notifications, 100 card-transition notifications, or 100 digital wallet token transition notifications are sent per message.
Authentication Marqeta includes a Basic Auth (base64 encoded) header in the notification message. The customer environment must be configured to perform this type of authentication.

Event Notification Processing

Your webhook endpoint might receive notifications in a different order from which the underlying events occur. You can use the created_time field to determine the correct chronological order if it is necessary for your business logic.

Your webhook endpoint might occasionally receive the same notification more than once. You can handle these rare cases by making your event processing idempotent.