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

# Pipeline Service Versions

> List and retrieve historical versions of a pipeline service

# Pipeline Service Versions

Every change to a pipeline service entity creates a new version. Use these endpoints to view the version history and retrieve specific versions.

## List Versions

<ParamField path="id" type="string" required>
  UUID of the pipeline service.
</ParamField>

## Get Specific Version

Use `GET /v1/services/pipelineServices/{id}/versions/{version}` to retrieve a specific version.

<ParamField path="id" type="string" required>
  UUID of the pipeline service.
</ParamField>

<ParamField path="version" type="string" required>
  Version number to retrieve (e.g., `0.2`).
</ParamField>

<RequestExample dropdown>
  ```python GET /v1/services/pipelineServices/{id}/versions theme={null}
  import requests

  base_url = "https://your-company.open-metadata.org/api"
  headers = {"Authorization": "Bearer your-jwt-token"}

  # List all versions
  response = requests.get(
      f"{base_url}/v1/services/pipelineServices/daa58a49-df05-48a3-a417-45dfd12eacf5/versions",
      headers=headers
  )
  versions = response.json()
  for v in versions["versions"]:
      print(v)

  # Get a specific version
  response = requests.get(
      f"{base_url}/v1/services/pipelineServices/daa58a49-df05-48a3-a417-45dfd12eacf5/versions/0.1",
      headers=headers
  )
  ```

  ```java GET /v1/services/pipelineServices/{id}/versions theme={null}
  import static org.openmetadata.sdk.fluent.PipelineServices.*;

  // List all versions
  var history = PipelineServices.getVersions("daa58a49-df05-48a3-a417-45dfd12eacf5");

  for (var version : history.getVersions()) {
      System.out.println("Version: " + version);
  }

  // Get a specific version
  var v1 = PipelineServices.getSpecificVersion(
      "daa58a49-df05-48a3-a417-45dfd12eacf5",
      0.1
  );
  System.out.println("Description: " + v1.getDescription());
  ```

  ```bash GET /v1/services/pipelineServices/{id}/versions theme={null}
  # List all versions
  curl "{base_url}/api/v1/services/pipelineServices/daa58a49-df05-48a3-a417-45dfd12eacf5/versions" \
    -H "Authorization: Bearer {access_token}"

  # Get a specific version
  curl "{base_url}/api/v1/services/pipelineServices/daa58a49-df05-48a3-a417-45dfd12eacf5/versions/0.1" \
    -H "Authorization: Bearer {access_token}"
  ```
</RequestExample>

<ResponseExample>
  ```json Response (List Versions) theme={null}
  {
    "entityType": "pipelineService",
    "versions": [
      "{\"id\":\"daa58a49-df05-48a3-a417-45dfd12eacf5\",\"name\":\"sample_airflow\",\"fullyQualifiedName\":\"sample_airflow\",\"version\":0.2,\"description\":\"Updated Airflow production service\",\"serviceType\":\"Airflow\"}",
      "{\"id\":\"daa58a49-df05-48a3-a417-45dfd12eacf5\",\"name\":\"sample_airflow\",\"fullyQualifiedName\":\"sample_airflow\",\"version\":0.1,\"serviceType\":\"Airflow\"}"
    ]
  }
  ```
</ResponseExample>

***

## Returns

**List versions** returns an object with `entityType` and a `versions` array of serialized entity snapshots (newest first).

**Get specific version** returns the full pipeline service object as it existed at that version.

***

## Error Handling

| Code  | Error Type     | Description                                |
| ----- | -------------- | ------------------------------------------ |
| `401` | `UNAUTHORIZED` | Invalid or missing authentication token    |
| `404` | `NOT_FOUND`    | Pipeline service or version does not exist |