Saves the progress of a durable function execution during runtime

Saves the progress of a durable function execution during runtime. This API is used by the Lambda durable functions SDK to checkpoint completed steps and schedule asynchronous operations. You typically don't need to call this API directly as the SDK handles checkpointing automatically.

See https://www.paws-r-sdk.com/docs/lambda_checkpoint_durable_execution/ for full documentation.

Usage

lambda_checkpoint_durable_execution(
  DurableExecutionArn,
  CheckpointToken,
  Updates = NULL,
  ClientToken = NULL
)

Arguments

DurableExecutionArn

[required] The Amazon Resource Name (ARN) of the durable execution.

CheckpointToken

[required] A unique token that identifies the current checkpoint state. This token is provided by the Lambda runtime and must be used to ensure checkpoints are applied in the correct order. Each checkpoint operation consumes this token and returns a new one.

Updates

An array of state updates to apply during this checkpoint. Each update represents a change to the execution state, such as completing a step, starting a callback, or scheduling a timer. Updates are applied atomically as part of the checkpoint operation.

ClientToken

An optional idempotency token to ensure that duplicate checkpoint requests are handled correctly. If provided, Lambda uses this token to detect and handle duplicate requests within a 15-minute window.