## bittrex{docsify-ignore}
**Kind**: global class
**Extends**: Exchange
* [fetchMarkets](#fetchmarkets)
* [fetchBalance](#fetchbalance)
* [fetchOrderBook](#fetchorderbook)
* [fetchCurrencies](#fetchcurrencies)
* [fetchTickers](#fetchtickers)
* [fetchTicker](#fetchticker)
* [fetchBidsAsks](#fetchbidsasks)
* [fetchTime](#fetchtime)
* [fetchTrades](#fetchtrades)
* [fetchTradingFee](#fetchtradingfee)
* [fetchTradingFees](#fetchtradingfees)
* [fetchOHLCV](#fetchohlcv)
* [fetchOpenOrders](#fetchopenorders)
* [fetchOrderTrades](#fetchordertrades)
* [createOrder](#createorder)
* [cancelOrder](#cancelorder)
* [cancelAllOrders](#cancelallorders)
* [fetchDeposit](#fetchdeposit)
* [fetchDeposits](#fetchdeposits)
* [fetchPendingDeposits](#fetchpendingdeposits)
* [fetchWithdrawal](#fetchwithdrawal)
* [fetchWithdrawals](#fetchwithdrawals)
* [fetchPendingWithdrawals](#fetchpendingwithdrawals)
* [fetchOrder](#fetchorder)
* [fetchMyTrades](#fetchmytrades)
* [fetchClosedOrders](#fetchclosedorders)
* [createDepositAddress](#createdepositaddress)
* [fetchDepositAddress](#fetchdepositaddress)
* [fetchDepositWithdrawFees](#fetchdepositwithdrawfees)
* [withdraw](#withdraw)
* [watchOrders](#watchorders)
* [watchBalance](#watchbalance)
* [watchTicker](#watchticker)
* [watchOHLCV](#watchohlcv)
* [watchTrades](#watchtrades)
* [watchMyTrades](#watchmytrades)
* [watchOrderBook](#watchorderbook)
### fetchMarkets{docsify-ignore}
retrieves data on all markets for bittrex
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- an array of objects representing market data
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchMarkets ([params])
```
### fetchBalance{docsify-ignore}
query for balance and get the amount of funds available for trading or funds locked in orders
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [balance structure](https://docs.ccxt.com/#/?id=balance-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchBalance ([params])
```
### fetchOrderBook{docsify-ignore}
fetches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- A dictionary of [order book structures](https://docs.ccxt.com/#/?id=order-book-structure) indexed by market symbols
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch the order book for |
| limit | int
| No | the maximum amount of order book entries to return |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchOrderBook (symbol[, limit, params])
```
### fetchCurrencies{docsify-ignore}
fetches all available currencies on an exchange
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- an associative dictionary of currencies
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchCurrencies ([params])
```
### fetchTickers{docsify-ignore}
fetches price tickers for multiple markets, statistical information calculated over the past 24 hours for each market
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a dictionary of [ticker structures](https://docs.ccxt.com/#/?id=ticker-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbols | Array<string>
, undefined
| Yes | unified symbols of the markets to fetch the ticker for, all market tickers are returned if not assigned |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchTickers (symbols[, params])
```
### fetchTicker{docsify-ignore}
fetches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [ticker structure](https://docs.ccxt.com/#/?id=ticker-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch the ticker for |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchTicker (symbol[, params])
```
### fetchBidsAsks{docsify-ignore}
fetches the bid and ask price and volume for multiple markets
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a dictionary of [ticker structures](https://docs.ccxt.com/#/?id=ticker-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbols | Array<string>
, undefined
| Yes | unified symbols of the markets to fetch the bids and asks for, all markets are returned if not assigned |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchBidsAsks (symbols[, params])
```
### fetchTime{docsify-ignore}
fetches the current integer timestamp in milliseconds from the exchange server
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: int
- the current integer timestamp in milliseconds from the exchange server
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchTime ([params])
```
### fetchTrades{docsify-ignore}
get the list of most recent trades for a particular symbol
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<Trade>
- a list of [trade structures](https://docs.ccxt.com/#/?id=public-trades)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch trades for |
| since | int
| No | timestamp in ms of the earliest trade to fetch |
| limit | int
| No | the maximum amount of trades to fetch |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchTrades (symbol[, since, limit, params])
```
### fetchTradingFee{docsify-ignore}
fetch the trading fees for a market
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [fee structure](https://docs.ccxt.com/#/?id=fee-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchTradingFee (symbol[, params])
```
### fetchTradingFees{docsify-ignore}
fetch the trading fees for multiple markets
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a dictionary of [fee structures](https://docs.ccxt.com/#/?id=fee-structure) indexed by market symbols
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchTradingFees ([params])
```
### fetchOHLCV{docsify-ignore}
fetches historical candlestick data containing the open, high, low, and close price, and the volume of a market
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<Array<int>>
- A list of candles ordered as timestamp, open, high, low, close, volume
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch OHLCV data for |
| timeframe | string
| Yes | the length of time each candle represents |
| since | int
| No | timestamp in ms of the earliest candle to fetch |
| limit | int
| No | the maximum amount of candles to fetch |
| params | object
| No | extra parameters specific to the exchange API endpoint |
| params.paginate | boolean
| No | default false, when true will automatically paginate by calling this endpoint multiple times. See in the docs all the [availble parameters](https://github.com/ccxt/ccxt/wiki/Manual#pagination-params) |
```javascript
bittrex.fetchOHLCV (symbol, timeframe[, since, limit, params])
```
### fetchOpenOrders{docsify-ignore}
fetch all unfilled currently open orders
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<Order>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol |
| since | int
| No | the earliest time in ms to fetch open orders for |
| limit | int
| No | the maximum number of open orders structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchOpenOrders (symbol[, since, limit, params])
```
### fetchOrderTrades{docsify-ignore}
fetch all the trades made from a single order
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [trade structures](https://docs.ccxt.com/#/?id=trade-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| id | string
| Yes | order id |
| symbol | string
| Yes | unified market symbol |
| since | int
| No | the earliest time in ms to fetch trades for |
| limit | int
| No | the maximum number of trades to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchOrderTrades (id, symbol[, since, limit, params])
```
### createOrder{docsify-ignore}
create a trade order
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- an [order structure](https://docs.ccxt.com/#/?id=order-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to create an order in |
| type | string
| Yes | 'market' or 'limit' |
| side | string
| Yes | 'buy' or 'sell' |
| amount | float
| Yes | how much of currency you want to trade in units of base currency |
| price | float
| No | the price at which the order is to be fullfilled, in units of the quote currency, ignored in market orders |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.createOrder (symbol, type, side, amount[, price, params])
```
### cancelOrder{docsify-ignore}
cancels an open order
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- An [order structure](https://docs.ccxt.com/#/?id=order-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| id | string
| Yes | order id |
| symbol | string
| Yes | unified symbol of the market the order was made in |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.cancelOrder (id, symbol[, params])
```
### cancelAllOrders{docsify-ignore}
cancel all open orders
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol, only orders in the market of this symbol are cancelled when symbol is not undefined |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.cancelAllOrders (symbol[, params])
```
### fetchDeposit{docsify-ignore}
fetch data on a currency deposit via the deposit id
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [transaction structure](https://docs.ccxt.com/#/?id=transaction-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| id | string
| Yes | deposit id |
| code | string
| Yes | filter by currency code |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchDeposit (id, code[, params])
```
### fetchDeposits{docsify-ignore}
fetch all deposits made to an account
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| since | int
| No | the earliest time in ms to fetch deposits for |
| limit | int
| No | the maximum number of deposits structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
| params.endDate | int
| No | Filters out result after this timestamp. Uses ISO-8602 format. |
| params.nextPageToken | string
| No | The unique identifier of the item that the resulting query result should start after, in the sort order of the given endpoint. Used for traversing a paginated set in the forward direction. |
| params.previousPageToken | string
| No | The unique identifier of the item that the resulting query result should end before, in the sort order of the given endpoint. Used for traversing a paginated set in the reverse direction. |
```javascript
bittrex.fetchDeposits (code[, since, limit, params])
```
### fetchPendingDeposits{docsify-ignore}
fetch all pending deposits made from an account
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| since | int
| No | the earliest time in ms to fetch withdrawals for |
| limit | int
| No | the maximum number of withdrawals structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
| params.endDate | int
| No | Filters out result after this timestamp. Uses ISO-8602 format. |
| params.nextPageToken | string
| No | The unique identifier of the item that the resulting query result should start after, in the sort order of the given endpoint. Used for traversing a paginated set in the forward direction. |
| params.previousPageToken | string
| No | The unique identifier of the item that the resulting query result should end before, in the sort order of the given endpoint. Used for traversing a paginated set in the reverse direction. |
```javascript
bittrex.fetchPendingDeposits (code[, since, limit, params])
```
### fetchWithdrawal{docsify-ignore}
fetch data on a currency withdrawal via the withdrawal id
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [transaction structure](https://docs.ccxt.com/#/?id=transaction-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| id | string
| Yes | withdrawal id |
| code | string
| Yes | filter by currency code |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchWithdrawal (id, code[, params])
```
### fetchWithdrawals{docsify-ignore}
fetch all withdrawals made from an account
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| since | int
| No | the earliest time in ms to fetch withdrawals for |
| limit | int
| No | the maximum number of withdrawals structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
| params.endDate | int
| No | Filters out result after this timestamp. Uses ISO-8602 format. |
| params.nextPageToken | string
| No | The unique identifier of the item that the resulting query result should start after, in the sort order of the given endpoint. Used for traversing a paginated set in the forward direction. |
| params.previousPageToken | string
| No | The unique identifier of the item that the resulting query result should end before, in the sort order of the given endpoint. Used for traversing a paginated set in the reverse direction. |
```javascript
bittrex.fetchWithdrawals (code[, since, limit, params])
```
### fetchPendingWithdrawals{docsify-ignore}
fetch all pending withdrawals made from an account
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| since | int
| No | the earliest time in ms to fetch withdrawals for |
| limit | int
| No | the maximum number of withdrawals structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
| params.endDate | int
| No | Filters out result after this timestamp. Uses ISO-8602 format. |
| params.nextPageToken | string
| No | The unique identifier of the item that the resulting query result should start after, in the sort order of the given endpoint. Used for traversing a paginated set in the forward direction. |
| params.previousPageToken | string
| No | The unique identifier of the item that the resulting query result should end before, in the sort order of the given endpoint. Used for traversing a paginated set in the reverse direction. |
```javascript
bittrex.fetchPendingWithdrawals (code[, since, limit, params])
```
### fetchOrder{docsify-ignore}
fetches information on an order made by the user
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- An [order structure](https://docs.ccxt.com/#/?id=order-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market the order was made in |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchOrder (symbol[, params])
```
### fetchMyTrades{docsify-ignore}
fetch all trades made by the user
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<Trade>
- a list of [trade structures](https://docs.ccxt.com/#/?id=trade-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol |
| since | int
| No | the earliest time in ms to fetch trades for |
| limit | int
| No | the maximum number of trades structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchMyTrades (symbol[, since, limit, params])
```
### fetchClosedOrders{docsify-ignore}
fetches information on multiple closed orders made by the user
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<Order>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol of the market orders were made in |
| since | int
| No | the earliest time in ms to fetch orders for |
| limit | int
| No | the maximum number of orde structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchClosedOrders (symbol[, since, limit, params])
```
### createDepositAddress{docsify-ignore}
create a currency deposit address
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- an [address structure](https://docs.ccxt.com/#/?id=address-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code of the currency for the deposit address |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.createDepositAddress (code[, params])
```
### fetchDepositAddress{docsify-ignore}
fetch the deposit address for a currency associated with this account
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- an [address structure](https://docs.ccxt.com/#/?id=address-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchDepositAddress (code[, params])
```
### fetchDepositWithdrawFees{docsify-ignore}
fetch deposit and withdraw fees
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a list of [fee structures](https://docs.ccxt.com/#/?id=fee-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| codes | Array<string>
, undefined
| Yes | list of unified currency codes |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.fetchDepositWithdrawFees (codes[, params])
```
### withdraw{docsify-ignore}
make a withdrawal
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [transaction structure](https://docs.ccxt.com/#/?id=transaction-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| amount | float
| Yes | the amount to withdraw |
| address | string
| Yes | the address to withdraw to |
| tag | string
| Yes | |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.withdraw (code, amount, address, tag[, params])
```
### watchOrders{docsify-ignore}
watches information on multiple orders made by the user
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol of the market orders were made in |
| since | int
| No | the earliest time in ms to fetch orders for |
| limit | int
| No | the maximum number of orde structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.watchOrders (symbol[, since, limit, params])
```
### watchBalance{docsify-ignore}
watch balance and get the amount of funds available for trading or funds locked in orders
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [balance structure](https://docs.ccxt.com/#/?id=balance-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.watchBalance ([params])
```
### watchTicker{docsify-ignore}
watches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- a [ticker structure](https://docs.ccxt.com/#/?id=ticker-structure)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch the ticker for |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.watchTicker (symbol[, params])
```
### watchOHLCV{docsify-ignore}
watches historical candlestick data containing the open, high, low, and close price, and the volume of a market
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<Array<int>>
- A list of candles ordered as timestamp, open, high, low, close, volume
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch OHLCV data for |
| timeframe | string
| Yes | the length of time each candle represents |
| since | int
| No | timestamp in ms of the earliest candle to fetch |
| limit | int
| No | the maximum amount of candles to fetch |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.watchOHLCV (symbol, timeframe[, since, limit, params])
```
### watchTrades{docsify-ignore}
get the list of most recent trades for a particular symbol
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [trade structures](https://docs.ccxt.com/#/?id=public-trades)
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch trades for |
| since | int
| No | timestamp in ms of the earliest trade to fetch |
| limit | int
| No | the maximum amount of trades to fetch |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.watchTrades (symbol[, since, limit, params])
```
### watchMyTrades{docsify-ignore}
watches information on multiple trades made by the user
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: Array<object>
- a list of [trade structures]{@link https://docs.ccxt.com/#/?id=trade-structure
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol of the market trades were made in |
| since | int
| No | the earliest time in ms to fetch trades for |
| limit | int
| No | the maximum number of trade structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.watchMyTrades (symbol[, since, limit, params])
```
### watchOrderBook{docsify-ignore}
watches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
**Kind**: instance method of [bittrex
](#bittrex)
**Returns**: object
- A dictionary of [order book structures](https://docs.ccxt.com/#/?id=order-book-structure) indexed by market symbols
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to fetch the order book for |
| limit | int
| No | the maximum amount of order book entries to return |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
bittrex.watchOrderBook (symbol[, limit, params])
```