# EndpointStep **`class EndpointStep(config)`** Bases: [`BatchedStep`](../technical/libnlp/steps/standard.md#squirro.lib.nlp.steps.batched_step.BatchedStep) Step that uses an external API endpoint. It sends a batch of [`Document`](../technical/libnlp/base.md#squirro.lib.nlp.document.Document) in the shape of {“docs”:LIST_OF_DOCS, “fields”:LIST_OF_FIELDS} to the endpoint and returns the received batch of [`Document`](../technical/libnlp/base.md#squirro.lib.nlp.document.Document) Parameters - `type` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)) – endpoint - `fields` ([`list`](https://docs.python.org/3.11/library/stdtypes.html#list)) – list of relevant fields - `process_endpoint` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)) – URL of batched process endpoint - `train_endpoint` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)) – URL of batched train endpoint **Example** ```json { "name": "endpoint", "step": "endpoint", "type": "endpoint", "fields": ["title","body"], "process_endpoint": "https://localhost:/process", "train_endpoint": "https://localhost:/train" } ``` Methods SummaryMethods Documentation **`process_batch(batch)`** Process a batch of documents. If not defined will default to using self.process_doc for each document in the batch. Parameters `batch` ([`list`](https://docs.python.org/3.11/library/stdtypes.html#list)`(`[`Document`](../technical/libnlp/base.md#squirro.lib.nlp.document.Document)`)`) – List of documents Returns List of processed documents Return type [list](https://docs.python.org/3.11/library/stdtypes.html#list)([Document](../technical/libnlp/base.md#squirro.lib.nlp.document.Document)) **`train_batch(batch)`** Train on a batch of documents Parameters `batch` ([`list`](https://docs.python.org/3.11/library/stdtypes.html#list)`(`[`Document`](../technical/libnlp/base.md#squirro.lib.nlp.document.Document)`)`) – List of documents