openapi: 3.1.0
info:
  title: Langflow V2 Workflow API
  description: Filtered API for Langflow V2 workflow operations (3 endpoints)
  version: 1.12.0
paths:
  /api/v2/workflows:
    post:
      tags:
        - Workflow
      summary: Execute Workflow
      description: Execute a workflow with support for sync, stream, and background modes
      operationId: execute_workflow_api_v2_workflows_post
      security:
        - API key query: []
        - API key header: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WorkflowExecutionRequest'
      responses:
        '200':
          description: Workflow execution response
          content:
            application/json:
              schema:
                anyOf:
                  - $ref: '#/components/schemas/WorkflowExecutionResponse'
                  - $ref: '#/components/schemas/WorkflowJobResponse'
                title: Response Execute Workflow Api V2 Workflows Post
                oneOf:
                  - $ref: '#/components/schemas/WorkflowExecutionResponse'
                  - $ref: '#/components/schemas/WorkflowJobResponse'
                discriminator:
                  propertyName: object
                  mapping:
                    response: '#/components/schemas/WorkflowExecutionResponse'
                    job: '#/components/schemas/WorkflowJobResponse'
            text/event-stream:
              schema:
                $ref: '#/components/schemas/WorkflowStreamEvent'
              description: Server-sent events for streaming execution
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
    get:
      tags:
        - Workflow
      summary: Get Workflow Status
      description: Get status of workflow job by job ID
      operationId: get_workflow_status_api_v2_workflows_get
      security:
        - API key query: []
        - API key header: []
      parameters:
        - name: job_id
          in: query
          required: false
          schema:
            anyOf:
              - type: string
              - type: string
                format: uuid
              - type: 'null'
            description: Job ID to query
            title: Job Id
          description: Job ID to query
      responses:
        '200':
          description: Workflow status response
          content:
            application/json:
              schema:
                anyOf:
                  - $ref: '#/components/schemas/WorkflowExecutionResponse'
                  - $ref: '#/components/schemas/WorkflowJobResponse'
                title: Response Get Workflow Status Api V2 Workflows Get
                $ref: '#/components/schemas/WorkflowExecutionResponse'
            text/event-stream:
              schema:
                $ref: '#/components/schemas/WorkflowStreamEvent'
              description: Server-sent events for streaming status
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /api/v2/workflows/stop:
    post:
      tags:
        - Workflow
      summary: Stop Workflow
      description: Stop a running workflow execution
      operationId: stop_workflow_api_v2_workflows_stop_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WorkflowStopRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WorkflowStopResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - API key query: []
        - API key header: []
components:
  schemas:
    ComponentOutput:
      properties:
        type:
          type: string
          title: Type
          description: >-
            Type of the component output (e.g., 'message', 'data', 'tool',
            'text')
        status:
          $ref: '#/components/schemas/JobStatus'
        content:
          anyOf:
            - {}
            - type: 'null'
          title: Content
        metadata:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Metadata
      type: object
      required:
        - type
        - status
      title: ComponentOutput
      description: Component output schema.
    ErrorDetail:
      properties:
        error:
          type: string
          title: Error
        code:
          anyOf:
            - type: string
            - type: 'null'
          title: Code
        details:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Details
      type: object
      required:
        - error
      title: ErrorDetail
      description: Error detail schema.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    JobStatus:
      type: string
      enum:
        - queued
        - in_progress
        - completed
        - failed
        - cancelled
        - timed_out
      title: JobStatus
      description: Job execution status.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
    WorkflowExecutionRequest:
      properties:
        background:
          type: boolean
          title: Background
          default: false
        stream:
          type: boolean
          title: Stream
          default: false
        flow_id:
          type: string
          title: Flow Id
        inputs:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Inputs
          description: >-
            Component-specific inputs in flat format: 'component_id.param_name':
            value
      additionalProperties: false
      type: object
      required:
        - flow_id
      title: WorkflowExecutionRequest
      description: Request schema for workflow execution.
      examples:
        - background: false
          flow_id: flow_67ccd2be17f0819081ff3bb2cf6508e60bb6a6b452d3795b
          inputs:
            ChatInput-abc.input_value: Hello, how can you help me today?
            ChatInput-abc.session_id: session-123
            LLM-xyz.max_tokens: 100
            LLM-xyz.temperature: 0.7
            OpenSearch-def.opensearch_url: https://opensearch:9200
          stream: false
        - background: true
          flow_id: flow_67ccd2be17f0819081ff3bb2cf6508e60bb6a6b452d3795b
          inputs:
            ChatInput-abc.input_value: Process this in the background
          stream: false
        - background: false
          flow_id: flow_67ccd2be17f0819081ff3bb2cf6508e60bb6a6b452d3795b
          inputs:
            ChatInput-abc.input_value: Stream this conversation
          stream: true
    WorkflowExecutionResponse:
      properties:
        flow_id:
          type: string
          title: Flow Id
        job_id:
          anyOf:
            - type: string
            - type: string
              format: uuid
            - type: 'null'
          title: Job Id
        object:
          type: string
          const: response
          title: Object
          default: response
        created_timestamp:
          type: string
          title: Created Timestamp
        status:
          $ref: '#/components/schemas/JobStatus'
        errors:
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type: array
          title: Errors
          default: []
        inputs:
          additionalProperties: true
          type: object
          title: Inputs
          default: {}
        outputs:
          additionalProperties:
            $ref: '#/components/schemas/ComponentOutput'
          type: object
          title: Outputs
          default: {}
      type: object
      required:
        - flow_id
        - status
      title: WorkflowExecutionResponse
      description: Synchronous workflow execution response.
    WorkflowJobResponse:
      properties:
        job_id:
          anyOf:
            - type: string
            - type: string
              format: uuid
          title: Job Id
        flow_id:
          type: string
          title: Flow Id
        object:
          type: string
          const: job
          title: Object
          default: job
        created_timestamp:
          type: string
          title: Created Timestamp
        status:
          $ref: '#/components/schemas/JobStatus'
        links:
          additionalProperties:
            type: string
          type: object
          title: Links
        errors:
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type: array
          title: Errors
          default: []
      type: object
      required:
        - job_id
        - flow_id
        - status
      title: WorkflowJobResponse
      description: Background job response.
    WorkflowStopRequest:
      properties:
        job_id:
          anyOf:
            - type: string
            - type: string
              format: uuid
          title: Job Id
      type: object
      required:
        - job_id
      title: WorkflowStopRequest
      description: Request schema for stopping workflow.
    WorkflowStopResponse:
      properties:
        job_id:
          anyOf:
            - type: string
            - type: string
              format: uuid
          title: Job Id
        message:
          anyOf:
            - type: string
            - type: 'null'
          title: Message
      type: object
      required:
        - job_id
      title: WorkflowStopResponse
      description: Response schema for stopping workflow.
  securitySchemes:
    OAuth2PasswordBearerCookie:
      type: oauth2
      flows:
        password:
          scopes: {}
          tokenUrl: api/v1/login
    API key query:
      type: apiKey
      in: query
      name: x-api-key
    API key header:
      type: apiKey
      in: header
      name: x-api-key