**Source URL:** https://limited.veevavault.dev/vault-api/api-reference/19.1/expected-document-lists/retrieve-root-nodes.md

# Retrieve Root Nodes



Retrieves all root EDL nodes and node metadata. Learn more EDL hierarchies in [Vault Help](https://regulatory.veevavault.help/en/lr/37472).

<Endpoint path="/api/{version}/composites/trees/edl_hierarchy__v" method="GET"></Endpoint>

## Headers {#headers}

<FieldTable>
| Name | Description |
| --- | --- |
| `Content-Type` | `application/json` (default) or `text/csv` |
| `Accept` | `application/json` (default) or `application/xml` or `text/csv` |
</FieldTable>

## Request {#request}

<CodeExample title="">
```
curl -X POST -H "Authorization: {SESSION_ID}" \
https://myvault.veevavault.com/api/v16.0/composites/trees/edl_hierarchy__v

```
</CodeExample>

## Response {#response}

<CodeExample title="">
```
{
  "responseStatus": "SUCCESS",
  "data": [
    {
      "id": "0000000000000JIT",
      "order__v": 1,
      "ref_type__v": "edl__v",
      "ref_name__v": "NewEDL",
      "url": "/vobjects/edl__v/0EL000000001901",
      "ref_id__v": "0EL000000001901",
      "parent_id__v": null
    }
  ]
}

```
</CodeExample>

---

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**Next:** [Retrieve a Node’s Children](/vault-api/api-reference/19.1/expected-document-lists/retrieve-a-nodes-children)