## blockchaincom{docsify-ignore}
**Kind**: global class
**Extends**: Exchange
* [fetchMarkets](#fetchmarkets)
* [fetchOrderBook](#fetchorderbook)
* [fetchL3OrderBook](#fetchl3orderbook)
* [fetchTicker](#fetchticker)
* [fetchTickers](#fetchtickers)
* [createOrder](#createorder)
* [cancelOrder](#cancelorder)
* [cancelAllOrders](#cancelallorders)
* [fetchTradingFees](#fetchtradingfees)
* [fetchCanceledOrders](#fetchcanceledorders)
* [fetchClosedOrders](#fetchclosedorders)
* [fetchOpenOrders](#fetchopenorders)
* [fetchMyTrades](#fetchmytrades)
* [fetchDepositAddress](#fetchdepositaddress)
* [withdraw](#withdraw)
* [fetchWithdrawals](#fetchwithdrawals)
* [fetchWithdrawal](#fetchwithdrawal)
* [fetchDeposits](#fetchdeposits)
* [fetchDeposit](#fetchdeposit)
* [fetchBalance](#fetchbalance)
* [fetchOrder](#fetchorder)
* [watchBalance](#watchbalance)
* [watchOHLCV](#watchohlcv)
* [watchTicker](#watchticker)
* [watchTrades](#watchtrades)
* [fetchOrders](#fetchorders)
* [watchOrderBook](#watchorderbook)
### fetchMarkets{docsify-ignore}
retrieves data on all markets for blockchaincom
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<object>
- an array of objects representing market data
**See**: https://api.blockchain.com/v3/#getsymbols
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchMarkets ([params])
```
### fetchOrderBook{docsify-ignore}
fetches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- A dictionary of [order book structures](https://docs.ccxt.com/#/?id=order-book-structure) indexed by market symbols
**See**: https://api.blockchain.com/v3/#getl3orderbook
| 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
blockchaincom.fetchOrderBook (symbol[, limit, params])
```
### fetchL3OrderBook{docsify-ignore}
fetches level 3 information on open orders with bid (buy) and ask (sell) prices, volumes and other data
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- an [order book structure](https://docs.ccxt.com/#/?id=order-book-structure)
**See**: https://api.blockchain.com/v3/#getl3orderbook
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol |
| limit | int
| No | max number of orders to return, default is undefined |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchL3OrderBook (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 [blockchaincom
](#blockchaincom)
**Returns**: object
- a [ticker structure](https://docs.ccxt.com/#/?id=ticker-structure)
**See**: https://api.blockchain.com/v3/#gettickerbysymbol
| 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
blockchaincom.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 [blockchaincom
](#blockchaincom)
**Returns**: object
- a dictionary of [ticker structures](https://docs.ccxt.com/#/?id=ticker-structure)
**See**: https://api.blockchain.com/v3/#gettickers
| 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
blockchaincom.fetchTickers (symbols[, params])
```
### createOrder{docsify-ignore}
create a trade order
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- an [order structure](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://api.blockchain.com/v3/#createorder
| 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 fulfilled, in units of the quote currency, ignored in market orders |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.createOrder (symbol, type, side, amount[, price, params])
```
### cancelOrder{docsify-ignore}
cancels an open order
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- An [order structure](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://api.blockchain.com/v3/#deleteorder
| 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
blockchaincom.cancelOrder (id, symbol[, params])
```
### cancelAllOrders{docsify-ignore}
cancel all open orders
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- an list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://api.blockchain.com/v3/#deleteallorders
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol of the market to cancel orders in, all markets are used if undefined, default is undefined |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.cancelAllOrders (symbol[, params])
```
### fetchTradingFees{docsify-ignore}
fetch the trading fees for multiple markets
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- a dictionary of [fee structures](https://docs.ccxt.com/#/?id=fee-structure) indexed by market symbols
**See**: https://api.blockchain.com/v3/#getfees
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchTradingFees ([params])
```
### fetchCanceledOrders{docsify-ignore}
fetches information on multiple canceled orders made by the user
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://api.blockchain.com/v3/#getorders
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| symbol | string
| Yes | unified market symbol of the market orders were made in |
| since | int
| No | timestamp in ms of the earliest order, default is undefined |
| limit | int
| No | max number of orders to return, default is undefined |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchCanceledOrders (symbol[, since, limit, params])
```
### fetchClosedOrders{docsify-ignore}
fetches information on multiple closed orders made by the user
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<Order>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://api.blockchain.com/v3/#getorders
| 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
blockchaincom.fetchClosedOrders (symbol[, since, limit, params])
```
### fetchOpenOrders{docsify-ignore}
fetch all unfilled currently open orders
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<Order>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://api.blockchain.com/v3/#getorders
| 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
blockchaincom.fetchOpenOrders (symbol[, since, limit, params])
```
### fetchMyTrades{docsify-ignore}
fetch all trades made by the user
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<Trade>
- a list of [trade structures](https://docs.ccxt.com/#/?id=trade-structure)
**See**: https://api.blockchain.com/v3/#getfills
| 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
blockchaincom.fetchMyTrades (symbol[, since, limit, params])
```
### fetchDepositAddress{docsify-ignore}
fetch the deposit address for a currency associated with this account
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- an [address structure](https://docs.ccxt.com/#/?id=address-structure)
**See**: https://api.blockchain.com/v3/#getdepositaddress
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| code | string
| Yes | unified currency code |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchDepositAddress (code[, params])
```
### withdraw{docsify-ignore}
make a withdrawal
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- a [transaction structure](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://api.blockchain.com/v3/#createwithdrawal
| 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
blockchaincom.withdraw (code, amount, address, tag[, params])
```
### fetchWithdrawals{docsify-ignore}
fetch all withdrawals made from an account
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://api.blockchain.com/v3/#getwithdrawals
| 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
blockchaincom.fetchWithdrawals (code[, since, limit, params])
```
### fetchWithdrawal{docsify-ignore}
fetch data on a currency withdrawal via the withdrawal id
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- a [transaction structure](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://api.blockchain.com/v3/#getwithdrawalbyid
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| id | string
| Yes | withdrawal id |
| code | string
| Yes | not used by blockchaincom.fetchWithdrawal |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchWithdrawal (id, code[, params])
```
### fetchDeposits{docsify-ignore}
fetch all deposits made to an account
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<object>
- a list of [transaction structures](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://api.blockchain.com/v3/#getdeposits
| 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
blockchaincom.fetchDeposits (code[, since, limit, params])
```
### fetchDeposit{docsify-ignore}
fetch information on a deposit
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- a [transaction structure](https://docs.ccxt.com/#/?id=transaction-structure)
**See**: https://api.blockchain.com/v3/#getdepositbyid
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| id | string
| Yes | deposit id |
| code | string
| Yes | not used by blockchaincom fetchDeposit () |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchDeposit (id, code[, 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 [blockchaincom
](#blockchaincom)
**Returns**: object
- a [balance structure](https://docs.ccxt.com/#/?id=balance-structure)
**See**: https://api.blockchain.com/v3/#getaccounts
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchBalance ([params])
```
### fetchOrder{docsify-ignore}
fetches information on an order made by the user
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- An [order structure](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://api.blockchain.com/v3/#getorderbyid
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| id | string
| Yes | the order id |
| symbol | string
| Yes | not used by blockchaincom fetchOrder |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.fetchOrder (id, symbol[, params])
```
### watchBalance{docsify-ignore}
watch balance and get the amount of funds available for trading or funds locked in orders
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: object
- a [balance structure](https://docs.ccxt.com/#/?id=balance-structure)
**See**: https://exchange.blockchain.com/api/#balances
| Param | Type | Required | Description |
| --- | --- | --- | --- |
| params | object
| No | extra parameters specific to the exchange API endpoint |
```javascript
blockchaincom.watchBalance ([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 [blockchaincom
](#blockchaincom)
**Returns**: Array<Array<int>>
- A list of candles ordered as timestamp, open, high, low, close, volume
**See**: https://exchange.blockchain.com/api/#prices
| 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. Allows '1m', '5m', '15m', '1h', '6h' '1d'. Can only watch one timeframe per symbol. |
| 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
blockchaincom.watchOHLCV (symbol, timeframe[, 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 [blockchaincom
](#blockchaincom)
**Returns**: object
- a [ticker structure](https://docs.ccxt.com/#/?id=ticker-structure)
**See**: https://exchange.blockchain.com/api/#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
blockchaincom.watchTicker (symbol[, params])
```
### watchTrades{docsify-ignore}
get the list of most recent trades for a particular symbol
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<object>
- a list of [trade structures](https://docs.ccxt.com/#/?id=public-trades)
**See**: https://exchange.blockchain.com/api/#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
blockchaincom.watchTrades (symbol[, since, limit, params])
```
### fetchOrders{docsify-ignore}
watches information on multiple orders made by the user
**Kind**: instance method of [blockchaincom
](#blockchaincom)
**Returns**: Array<object>
- a list of [order structures](https://docs.ccxt.com/#/?id=order-structure)
**See**: https://exchange.blockchain.com/api/#mass-order-status-request-ordermassstatusrequest
| 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
blockchaincom.fetchOrders (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 [blockchaincom
](#blockchaincom)
**Returns**: object
- A dictionary of [order book structures](https://docs.ccxt.com/#/?id=order-book-structure) indexed by market symbols
**See**: https://exchange.blockchain.com/api/#l2-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 | objectConstructor
| No | extra parameters specific to the exchange API endpoint |
| params.type | string
| No | accepts l2 or l3 for level 2 or level 3 order book |
```javascript
blockchaincom.watchOrderBook (symbol[, limit, params])
```