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

# Restart Order Book Tracker

> Restart the order book tracker for a connector.

Use this endpoint when the order book is stale (WebSocket disconnected).
This will:
1. Stop the existing order book tracker
2. Restart it with the same trading pairs
3. Wait for the WebSocket to reconnect

Args:
    connector_name: The connector to restart (e.g., "binance")
    account_name: Optional account name for trading connectors

Returns:
    Restart status with success/failure and trading pairs



## OpenAPI

````yaml /api-reference/openapi.json post /market-data/order-book/restart/{connector_name}
openapi: 3.1.0
info:
  title: Hummingbot API
  description: API for managing Hummingbot trading instances
  version: 1.0.1
servers:
  - url: http://localhost:8000
    description: Local development server
security: []
paths:
  /market-data/order-book/restart/{connector_name}:
    post:
      tags:
        - Market Data
      summary: Restart Order Book Tracker
      description: |-
        Restart the order book tracker for a connector.

        Use this endpoint when the order book is stale (WebSocket disconnected).
        This will:
        1. Stop the existing order book tracker
        2. Restart it with the same trading pairs
        3. Wait for the WebSocket to reconnect

        Args:
            connector_name: The connector to restart (e.g., "binance")
            account_name: Optional account name for trading connectors

        Returns:
            Restart status with success/failure and trading pairs
      operationId: >-
        restart_order_book_tracker_market_data_order_book_restart__connector_name__post
      parameters:
        - name: connector_name
          in: path
          required: true
          schema:
            type: string
            title: Connector Name
        - name: account_name
          in: query
          required: false
          schema:
            type: string
            title: Account Name
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - HTTPBasic: []
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    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
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    HTTPBasic:
      type: http
      scheme: basic

````