Starts a new batch. You receive an `id` that you can use to track the progress of the batch as shown [here](/api-reference/batches/info). Note: Processing time is constant regardless of batch size

Array of items to be processed in the batch.

You can use this parameter to specify the parser to use. Parsers are useful to extract structured content from web pages. Olostep has a few parsers built in for most common web pages, and you can also create your own parsers.

Get all the links present on each page in the batch.