> ## Documentation Index
> Fetch the complete documentation index at: https://docs.brightdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Initiate an existing dataset

> Use the Bright Data Marketplace API to initiate an existing Dataset. triggers a marketplace dataset collection and returns 200 OK with JSON status.

**Endpoint:** `POST` `/datasets/request_collection`

## Query Parameters

<ParamField query="dataset_id" type="string" required>
  Dataset ID
</ParamField>

<ParamField query="view" type="string" required>
  View
</ParamField>

<ParamField query="type" type="string" required>
  | value            | description |
  | ---------------- | ----------- |
  | `discover_new`   |             |
  | `url_collection` |             |
</ParamField>

## `POST` body

<ParamField body="inputs" type="array" required>
  Array - json

  ```json theme={null}
  [
    {
      "url":"https://www.linkedin.com/company/2734818"
    },
    {
      "url":"https://www.linkedin.com/company/73259555"
    },
    {
      "url":"https://www.linkedin.com/company/82241573"
    }
  ]
  ```
</ParamField>

<RequestExample>
  ```sh theme={null}
  curl -k -X POST "https://api.brightdata.com/datasets/initiate?dataset_id=gd_l1vikfnt1wgvvqz95w&type=url_collection&view=v_lsu5sdxkopli6q8nn" -H "Authorization: Bearer API_KEY" -H "content-type: application/json"  -d '[{"url":"https://www.linkedin.com/company/2734818"},{"url":"https://www.linkedin.com/company/73259555"},{"url":"https://www.linkedin.com/company/82241573"}]'
  ```
</RequestExample>

<ResponseExample>
  ```json theme={null}
  {
      "id": "j_lsvqo4ge7jwzbe4nn"
  }
  ```
</ResponseExample>