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Schema: Saleor 3.23.43Download SDLUpgrade guides

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TransactionInitializeSession Object

Event sent when user starts processing the payment.

type TransactionInitializeSession implements Event {
  issuedAt: DateTime
  version: String
  issuingPrincipal: IssuingPrincipal
  recipient: App
  transaction: TransactionItem!
  sourceObject: OrderOrCheckout!
  data: JSON
  merchantReference: String!
  customerIpAddress: String
  action: TransactionProcessAction!
  idempotencyKey: String!
}

Interfaces

Event

Fields

issuedAt

issuedAt · DateTime

Time of the event.

version

version · String

Saleor version that triggered the event.

issuingPrincipal

issuingPrincipal · IssuingPrincipal

The user or application that triggered the event.

recipient

recipient · App

The application receiving the webhook.

transaction

transaction · TransactionItem!

Look up a transaction.

sourceObject

sourceObject · OrderOrCheckout!

Checkout or order

data

data · JSON

Payment gateway data in JSON format, received from storefront.

merchantReference

merchantReference · String!

Merchant reference assigned to this payment.

customerIpAddress

customerIpAddress · String

The customer’s IP address. If not provided as a parameter in the mutation, Saleor will try to determine the customer’s IP address on its own.

action

action · TransactionProcessAction!

Action to proceed for the transaction

idempotencyKey

idempotencyKey · String!

Idempotency key assigned to the transaction initialize.


Schema: Saleor 3.23.43. Download SDL.

Last updated on April 13, 2026

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