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

# Get Workflow Version

Fetch one immutable workflow graph version.

<RequestExample>
  ```python Python theme={null}
  from retab import Retab

  client = Retab()

  version = client.workflows.get_version(
      workflow_version_id="wfv_abc123",
      workflow_id="wf_abc123",
  )
  print(version)
  ```

  ```typescript TypeScript theme={null}
  import { Retab } from "@retab/node";

  const client = new Retab({ apiKey: process.env.RETAB_API_KEY });

  const version = await client.workflows.get_version("wfv_abc123", {
    workflowId: "wf_abc123",
  });
  console.log(version);
  ```

  ```go Go theme={null}
  package main

  import (
  	"context"
  	"fmt"
  	"log"

  	retab "github.com/retab-dev/retab/clients/go"
  )

  func main() {
  	ctx := context.Background()

  	client, err := retab.NewClient("")
  	if err != nil {
  		log.Fatal(err)
  	}

  	version, err := client.Workflows.GetVersion(ctx, "wfv_abc123", &retab.WorkflowsGetVersionParams{
  		WorkflowID: "wf_abc123",
  	})
  	if err != nil {
  		log.Fatal(err)
  	}
  	fmt.Println(*version)
  }
  ```

  ```ruby Ruby theme={null}
  require 'retab'

  client = Retab::Client.new(api_key: ENV['RETAB_API_KEY'])

  version = client.workflows.get_version(
    workflow_version_id: 'wfv_abc123',
    workflow_id: 'wf_abc123',
  )
  puts version
  ```

  ```rust Rust theme={null}
  use retab::Retab;
  use retab::resources::workflows::GetVersionParams;

  #[tokio::main]
  async fn main() -> Result<(), Box<dyn std::error::Error>> {
      let client = Retab::new(std::env::var("RETAB_API_KEY")?);

      let version = client
          .workflows()
          .get_version("wfv_abc123", GetVersionParams::new("wf_abc123"))
          .await?;
      println!("{:?}", version);
      Ok(())
  }
  ```

  ```php PHP theme={null}
  <?php
  require 'vendor/autoload.php';

  use Retab\Client;

  $client = new Client(apiKey: getenv('RETAB_API_KEY'));

  $version = $client->workflows()->getVersion(
      workflowVersionId: 'wfv_abc123',
      workflowId: 'wf_abc123',
  );
  print_r($version);
  ```

  ```csharp C# theme={null}
  using Retab;
  using RetabClient = Retab.Retab;

  var apiKey = Environment.GetEnvironmentVariable("RETAB_API_KEY")!;
  var client = new RetabClient(apiKey);

  var version = await client.Workflows.GetVersionAsync("wfv_abc123", new WorkflowsGetVersionOptions
  {
      WorkflowId = "wf_abc123",
  });
  Console.WriteLine(version);
  ```

  ```java Java theme={null}
  import com.retab.RetabClient;

  public final class Example {
    public static void main(String[] args) throws Exception {
      RetabClient client = new RetabClient(System.getenv("RETAB_API_KEY"));

      var version = client.workflows().getVersion("wfv_abc123", "wf_abc123");
      System.out.println(version);
    }
  }
  ```

  ```bash cURL theme={null}
  curl "https://api.retab.com/v1/workflows/versions/wfv_abc123?workflow_id=wf_abc123" \
    -H "Authorization: Bearer $RETAB_API_KEY"
  ```
</RequestExample>


## OpenAPI

````yaml GET /v1/workflows/versions/{workflow_version_id}
openapi: 3.1.0
info:
  title: FastAPI
  version: 0.1.0
servers:
  - url: https://api.retab.com
security: []
paths:
  /v1/workflows/versions/{workflow_version_id}:
    get:
      tags:
        - Workflows
        - Workflow Versions
      summary: Get Workflow Version
      operationId: get_workflow_version
      parameters:
        - in: path
          name: workflow_version_id
          required: true
          schema:
            type: string
            title: Workflow Version Id
        - in: query
          name: workflow_id
          required: true
          schema:
            type: string
            description: >-
              Workflow that owns the version. Workflow version ids are
              content-addressed by executable spec, so workflow_id disambiguates
              identical specs reused across workflows.
            title: Workflow Id
          description: >-
            Workflow that owns the version. Workflow version ids are
            content-addressed by executable spec, so workflow_id disambiguates
            identical specs reused across workflows.
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WorkflowGraphVersion'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - HTTPBearer: []
components:
  schemas:
    WorkflowGraphVersion:
      properties:
        id:
          type: string
          title: Id
          description: Public content-addressed workflow version ID
        workflow_id:
          type: string
          title: Workflow Id
        blocks:
          items:
            $ref: '#/components/schemas/WorkflowConfigBlock'
          type: array
          title: Blocks
          default: []
        edges:
          items:
            $ref: '#/components/schemas/WorkflowConfigEdge'
          type: array
          title: Edges
          default: []
        block_version_ids:
          items:
            type: string
          type: array
          title: Block Version Ids
          default: []
        edge_version_ids:
          items:
            type: string
          type: array
          title: Edge Version Ids
          default: []
        created_at:
          type: string
          format: date-time
          title: Created At
      type: object
      required:
        - created_at
        - id
        - workflow_id
      title: WorkflowGraphVersion
      description: Public workflow version resource without tenant fields.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
          default: []
      type: object
      title: HTTPValidationError
    WorkflowConfigBlock:
      properties:
        id:
          type: string
          title: Id
        type:
          type: string
          enum:
            - start_document
            - start_json
            - note
            - parse
            - edit
            - extract
            - split
            - classifier
            - conditional
            - api_call
            - function
            - while_loop
            - for_each
            - merge_dicts
            - while_loop_sentinel_start
            - while_loop_sentinel_end
            - for_each_sentinel_start
            - for_each_sentinel_end
          title: Type
        position:
          $ref: '#/components/schemas/WorkflowBlockPosition'
        label:
          type: string
          title: Label
        config:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Config
          description: Block-specific configuration
        resolved_schemas:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Resolved Schemas
          description: >-
            Derived schema transport sidecar for UI/runtime consumers. Not
            authored config.
        width:
          anyOf:
            - type: number
            - type: 'null'
          title: Width
          description: Block width for resizable blocks
        height:
          anyOf:
            - type: number
            - type: 'null'
          title: Height
          description: Block height for resizable blocks
        parent_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Parent Id
          description: ID of parent container block (while_loop, for_each)
      type: object
      required:
        - label
        - position
        - type
      title: WorkflowConfigBlock
    WorkflowConfigEdge:
      properties:
        id:
          type: string
          title: Id
        source:
          type: string
          title: Source
          description: ID of the source block
        target:
          type: string
          title: Target
          description: ID of the target block
        source_handle:
          anyOf:
            - type: string
            - type: 'null'
          title: Source Handle
        target_handle:
          anyOf:
            - type: string
            - type: 'null'
          title: Target Handle
        animated:
          type: boolean
          title: Animated
          default: true
      type: object
      required:
        - source
        - target
      title: WorkflowConfigEdge
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
          default: null
        ctx:
          type: object
          title: Context
          default: {}
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
    WorkflowBlockPosition:
      properties:
        x:
          type: number
          title: X
        'y':
          type: number
          title: 'Y'
      type: object
      required:
        - x
        - 'y'
      title: WorkflowBlockPosition
  securitySchemes:
    HTTPBearer:
      type: http
      scheme: bearer

````