---
title: "Restart Order Book Tracker"
method: POST
path: "/market-data/order-book/restart/{connector_name}"
tags: ["Market Data"]
---

# Restart Order Book Tracker

`POST /market-data/order-book/restart/{connector_name}`

## Request

- Base URL: `http://localhost:8000`
- URL: `http://localhost:8000/market-data/order-book/restart/{connector_name}`
- Auth: HTTP basic

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

## Path parameters

- `connector_name` string, required

## Query parameters

- `account_name` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-04-08** `92703f48a69e`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/hummingbot/apis/hummingbot-api/changes/market-data/order-book/restart/:connector_name/post.md)

---

[API](https://skmtc.dev/hummingbot/apis/hummingbot-api.md) - [All operations](https://skmtc.dev/hummingbot/apis/hummingbot-api/llms.txt) - [OpenAPI document](https://skmtc.dev/hummingbot/apis/hummingbot-api/revisions/66c2e6c1da2e?raw)