# Pagination

`HTTPGET` endpoints have:

* `maxItems` optional parameter to act as a limit for how many results should be returned.
  * The default value is 250
* `nextPagingToken` in the response that can be used in subsequent requests to get the next results page.
  * As long as `nextPagingToken` differs from null, there are more results available.
  * When null, the last page of results has been reached.
  * To request a previous page, the client should keep track of previously requested paging tokens.

## Example

### Request

```bash
curl -D- -X GET <baseUrl>/api/v1/countries?maxItems=3 \
    -H 'Authorization: Bearer <ACCESS_TOKEN>'
    -H 'Content-Type: application/json' \
```

### Response

```json
{
    "countries": [
        {
            "cultureCode": "da-DK",
            "id": "0c53f836-9601-ec11-837b-64bc58542c92",
            "name": "Denmark"
        },
        {
            "cultureCode": "de-DE",
            "id": "1153f836-9601-ec11-837b-64bc58542c92",
            "name": "Germany"
        },
        {
            "cultureCode": "en-GB",
            "id": "0f53f836-9601-ec11-837b-64bc58542c92",
            "name": "Great Britain"
        }
    ],
    "nextPagingToken": "M3wzfGRjMDZlZGYxLTQ2MGQtNGVlZC1hMzMxLWJjNWYwMzI4NDlkNHxGYWxzZQ=="
}
```

## Next Page

```bash
curl -D- -X GET <baseUrl>/api/v1/countries?maxItems=3&nextPagingToken=M3wzfGRjMDZlZGYxLTQ2MGQtNGVlZC1hMzMxLWJjNWYwMzI4NDlkNHxGYWxzZQ== \
    -H 'Authorization: Bearer <ACCESS_TOKEN>'
    -H 'Content-Type: application/json' \
```

## Error Handling

| Error            | Description                                    |
| ---------------- | ---------------------------------------------- |
| BadRequest (400) | Paging token does not match the current query; |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://dev.ucommerce.net/readme/headless/pagination.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.