Deferring Events

Usage

Node.js
Python

subscription.on(async (event) => {
  try {
    await processPayment(event.payload);
    await subscription.ack(event.idem, event.block);
  } catch (error) {
    // Defer for 5 seconds
    await subscription.defer(event.idem, 5000, "Temporary error");
  }
});

async def handle_payment(event):
    try:
        await process_payment(event.payload)
        await subscription.ack(event.idem, event.block)
    except Exception as error:
        # Defer for 5 seconds
        await subscription.defer(event.idem, 5000, "Temporary error")

subscription.on(handle_payment)

Parameters

Parameter	Type	Required	Description
`idem`	`string`	Yes	Unique event ID
`delayMs`	`number`	Yes	Delay in milliseconds
`reason`	`string`	No	Optional reason for deferring

Deferred events return to the queue after the delay. Any of your client instances sharing the same appKey can receive them.

Discarding Events Pause and Continue

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