Skip to main content

Basic: Batch processing of items

This sample processes a generated list in parallel batches and merges the batch outputs.

Choose this when​

Use this sample when you need to split a list into chunks and process more than one chunk at a time.

What it demonstrates​

  • Creating a ContextList from a Code node.
  • Configuring a Batch node with batchSize: 2 and parallelBatches: 2.
  • Processing each batch slice through the process output.
  • Merging batch results into an output list.

How it works​

The workflow starts with an optional count input defaulting to 10, then creates an inputs list containing numbers from 0 to count - 1. The Batch node splits inputs into chunks of two and runs up to two chunks in parallel. The batch Code node doubles each number and writes the slice to outputs, which the Batch node merges before continuing to End.

Setup notes​

No connector or model is required. Change the count, batch size, or parallel batch settings to see how the batching behavior changes.