## okcoin{docsify-ignore}
**Kind**: global class
**Extends**: Exchange
* [fetchTime](#fetchtime)
* [fetchMarkets](#fetchmarkets)
* [fetchCurrencies](#fetchcurrencies)
* [fetchOrderBook](#fetchorderbook)
* [fetchTicker](#fetchticker)
* [fetchTickers](#fetchtickers)
* [fetchTrades](#fetchtrades)
* [fetchOHLCV](#fetchohlcv)
* [fetchBalance](#fetchbalance)
* [createMarketBuyOrderWithCost](#createmarketbuyorderwithcost)
* [createOrder](#createorder)
* [cancelOrder](#cancelorder)
* [cancelOrders](#cancelorders)
* [fetchOrder](#fetchorder)
* [fetchOpenOrders](#fetchopenorders)
* [fetchClosedOrders](#fetchclosedorders)
* [transfer](#transfer)
* [withdraw](#withdraw)
* [fetchDeposits](#fetchdeposits)
* [fetchWithdrawals](#fetchwithdrawals)
* [fetchMyTrades](#fetchmytrades)
* [fetchOrderTrades](#fetchordertrades)
* [fetchLedger](#fetchledger)
* [watchTrades](#watchtrades)
* [watchOrders](#watchorders)
* [watchTicker](#watchticker)
* [watchOHLCV](#watchohlcv)
* [watchOrderBook](#watchorderbook)
* [watchBalance](#watchbalance)
### fetchTime{docsify-ignore}
fetches the current integer timestamp in milliseconds from the exchange server
**Kind**: instance method of [okcoin
](#okcoin)
**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
okcoin.fetchTime ([params])
```
### fetchMarkets{docsify-ignore}
retrieves data on all markets for okcoin
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<object>
- an array of objects representing market data
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-public-data-get-instruments
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.fetchMarkets ([params])
```
### fetchCurrencies{docsify-ignore}
fetches all available currencies on an exchange
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- an associative dictionary of currencies
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.fetchCurrencies ([params])
```
### fetchOrderBook{docsify-ignore}
fetches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- A dictionary of [order book structures](https://docs.ccxt.com/#/?id=order-book-structure) indexed by market symbols
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-market-data-get-order-book
| 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
okcoin.fetchOrderBook (symbol[, limit, 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 [okcoin
](#okcoin)
**Returns**: object
- a [ticker structure](https://docs.ccxt.com/#/?id=ticker-structure)
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-market-data-get-ticker
| 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
okcoin.fetchTicker (symbol[, 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 [okcoin
](#okcoin)
**Returns**: object
- a dictionary of [ticker structures](https://docs.ccxt.com/#/?id=ticker-structure)
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-market-data-get-tickers
| 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
okcoin.fetchTickers (symbols[, params])
```
### fetchTrades{docsify-ignore}
get the list of most recent trades for a particular symbol
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<Trade>
- a list of [trade structures](https://docs.ccxt.com/#/?id=public-trades)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-market-data-get-trades
- https://www.okcoin.com/docs-v5/en/#rest-api-market-data-get-trades-history
| 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
okcoin.fetchTrades (symbol[, since, limit, 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 [okcoin
](#okcoin)
**Returns**: Array<Array<int>>
- A list of candles ordered as timestamp, open, high, low, close, volume
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-market-data-get-candlesticks
- https://www.okcoin.com/docs-v5/en/#rest-api-market-data-get-candlesticks-history
| 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
okcoin.fetchOHLCV (symbol, timeframe[, since, limit, 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 [okcoin
](#okcoin)
**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
okcoin.fetchBalance ([params])
```
### createMarketBuyOrderWithCost{docsify-ignore}
create a market buy order by providing the symbol and cost
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- an [order structure](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-trade-place-order
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified symbol of the market to create an order in |
| cost | float
| Yes | how much you want to trade in units of the quote currency |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.createMarketBuyOrderWithCost (symbol, cost[, params])
```
### createOrder{docsify-ignore}
create a trade order
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- an [order structure](https://docs.ccxt.com/#/?id=order-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-place-order
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-place-algo-order
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-place-multiple-orders
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-cancel-advance-algo-order
| 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
| Yes | the price at which the order is to be fulfilled, in units of the quote currency, ignored in market orders |
| params | object
| No | extra parameters specific to the exchange API endpoint |
| params.reduceOnly | bool
| No | MARGIN orders only, or swap/future orders in net mode |
| params.postOnly | bool
| No | true to place a post only order |
| params.triggerPrice | float
| No | conditional orders only, the price at which the order is to be triggered |
| params.takeProfit | object
| No | *takeProfit object in params* containing the triggerPrice at which the attached take profit order will be triggered (perpetual swap markets only) |
| params.takeProfit.triggerPrice | float
| No | take profit trigger price |
| params.takeProfit.price | float
| No | used for take profit limit orders, not used for take profit market price orders |
| params.takeProfit.type | string
| No | 'market' or 'limit' used to specify the take profit price type |
| params.stopLoss | object
| No | *stopLoss object in params* containing the triggerPrice at which the attached stop loss order will be triggered (perpetual swap markets only) |
| params.stopLoss.triggerPrice | float
| No | stop loss trigger price |
| params.stopLoss.price | float
| No | used for stop loss limit orders, not used for stop loss market price orders |
| params.stopLoss.type | string
| No | 'market' or 'limit' used to specify the stop loss price type |
| params.cost | float
| No | *spot market buy only* the quote quantity that can be used as an alternative for the amount |
```javascript
okcoin.createOrder (symbol, type, side, amount, price[, params])
```
### cancelOrder{docsify-ignore}
cancels an open order
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- An [order structure](https://docs.ccxt.com/#/?id=order-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-cancel-order
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-cancel-algo-order
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-cancel-advance-algo-order
| 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 |
| params.stop | bool
| No | True if cancel trigger or conditional orders |
| params.advanced | bool
| No | True if canceling advanced orders only |
```javascript
okcoin.cancelOrder (id, symbol[, params])
```
### cancelOrders{docsify-ignore}
cancel multiple orders
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- an list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-cancel-multiple-orders
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-cancel-algo-order
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-cancel-advance-algo-order
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| ids | Array<string>
| Yes | order ids |
| symbol | string
| Yes | unified market symbol |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.cancelOrders (ids, symbol[, params])
```
### fetchOrder{docsify-ignore}
fetches information on an order made by the user
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- An [order structure](https://docs.ccxt.com/#/?id=order-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-order-details
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-algo-order-list
| 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
okcoin.fetchOrder (symbol[, params])
```
### fetchOpenOrders{docsify-ignore}
fetch all unfilled currently open orders
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<Order>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-order-list
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-algo-order-list
| 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 |
| params.stop | bool
| No | True if fetching trigger or conditional orders |
| params.ordType | string
| No | "conditional", "oco", "trigger", "move_order_stop", "iceberg", or "twap" |
```javascript
okcoin.fetchOpenOrders (symbol[, since, limit, params])
```
### fetchClosedOrders{docsify-ignore}
fetches information on multiple closed orders made by the user
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<Order>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-algo-order-history
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-order-history-last-3-months
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-order-history-last-7-days
| 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 order structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
| params.stop | bool
| No | True if fetching trigger or conditional orders |
| params.ordType | string
| No | "conditional", "oco", "trigger", "move_order_stop", "iceberg", or "twap" |
```javascript
okcoin.fetchClosedOrders (symbol[, since, limit, params])
```
### transfer{docsify-ignore}
transfer currency internally between wallets on the same account
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- a [transfer structure](https://docs.ccxt.com/#/?id=transfer-structure)
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-funding-funds-transfer
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| amount | float
| Yes | amount to transfer |
| fromAccount | string
| Yes | account to transfer from |
| toAccount | string
| Yes | account to transfer to |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.transfer (code, amount, fromAccount, toAccount[, params])
```
### withdraw{docsify-ignore}
make a withdrawal
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- a [transaction structure](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-funding-withdrawal
| 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
okcoin.withdraw (code, amount, address, tag[, params])
```
### fetchDeposits{docsify-ignore}
fetch all deposits made to an account
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-funding-get-deposit-history
| 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 |
```javascript
okcoin.fetchDeposits (code[, since, limit, params])
```
### fetchWithdrawals{docsify-ignore}
fetch all withdrawals made from an account
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://www.okcoin.com/docs-v5/en/#rest-api-funding-get-withdrawal-history
| 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 |
```javascript
okcoin.fetchWithdrawals (code[, since, limit, params])
```
### fetchMyTrades{docsify-ignore}
fetch all trades made by the user
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<Trade>
- a list of [trade structures](https://docs.ccxt.com/#/?id=trade-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-transaction-details-last-3-days
- https://www.okcoin.com/docs-v5/en/#rest-api-trade-get-transaction-details-last-3-months
| 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
okcoin.fetchMyTrades (symbol[, since, limit, params])
```
### fetchOrderTrades{docsify-ignore}
fetch all the trades made from a single order
**Kind**: instance method of [okcoin
](#okcoin)
**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
okcoin.fetchOrderTrades (id, symbol[, since, limit, params])
```
### fetchLedger{docsify-ignore}
fetch the history of changes, actions done by the user or operations that altered balance of the user
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: object
- a [ledger structure](https://docs.ccxt.com/#/?id=ledger-structure)
**See**
- https://www.okcoin.com/docs-v5/en/#rest-api-funding-asset-bills-details
- https://www.okcoin.com/docs-v5/en/#rest-api-account-get-bills-details-last-7-days
- https://www.okcoin.com/docs-v5/en/#rest-api-account-get-bills-details-last-3-months
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code, default is undefined |
| since | int
| No | timestamp in ms of the earliest ledger entry, default is undefined |
| limit | int
| No | max number of ledger entrys to return, default is undefined |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.fetchLedger (code[, since, limit, params])
```
### watchTrades{docsify-ignore}
get the list of most recent trades for a particular symbol
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<object>
- a list of [trade structures](https://docs.ccxt.com/#/?id=public-trades)
**See**: https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-trades-channel
| 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
okcoin.watchTrades (symbol[, since, limit, params])
```
### watchOrders{docsify-ignore}
watches information on multiple orders made by the user
**Kind**: instance method of [okcoin
](#okcoin)
**Returns**: Array<object>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://www.okcoin.com/docs-v5/en/#websocket-api-private-channel-order-channel
| 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 order structures to retrieve |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.watchOrders (symbol[, since, limit, 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 [okcoin
](#okcoin)
**Returns**: object
- a [ticker structure](https://docs.ccxt.com/#/?id=ticker-structure)
**See**: https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-tickers-channel
| 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
okcoin.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 [okcoin
](#okcoin)
**Returns**: Array<Array<int>>
- A list of candles ordered as timestamp, open, high, low, close, volume
**See**: https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-candlesticks-channel
| 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
okcoin.watchOHLCV (symbol, timeframe[, 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 [okcoin
](#okcoin)
**Returns**: object
- A dictionary of [order book structures](https://docs.ccxt.com/#/?id=order-book-structure) indexed by market symbols
**See**: https://www.okcoin.com/docs-v5/en/#websocket-api-public-channel-order-book-channel
| 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
okcoin.watchOrderBook (symbol[, 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 [okcoin
](#okcoin)
**Returns**: object
- a [balance structure](https://docs.ccxt.com/#/?id=balance-structure)
**See**: https://www.okcoin.com/docs-v5/en/#websocket-api-private-channel-account-channel
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
okcoin.watchBalance ([params])
```