okcoin - npm explorer

Node.js API wrapper to the OKCoin bitcoin exchange
===============

A node.js wrapper for the REST APIs exposed by bitcoin exchange OKCoin.
You will need have a registered account with OKCoin and generated API keys to access the private methods.

Please contact support@okcoin.com if you are having trouble opening and account or generating an API key.

$3

npm install okcoin

$3

- thin the client is just a simple wrapper to the OKCoin API. There is no parameter validation as this is delegated to the OKCoin API server. Similarly, there is no data transformation.
- errors all errors are returned as detailed Error objects which can be used programatically or for support
- no retries it's up to the calling program to handle retries as it'll vary between programs. For example, error handling timeouts on mutable API calls like addTrade and cancelOrder is not as simple as retying the API call as the operation my have been successful on the exchange but the response back was not.

$3

The first parameter to each API function is a callback function which is passed error and data objects.

The error object is an instance of VError which is an extension of the standard Error object.
The three main properties are:
- message a description of the error with all the available information so problems in production can be diagnosed. For example the url, http request method, parameters, error codes and messages
- name the HTTP or OKCoin error code so specific errors can be programatically detected. For example, 503 if you are sending too many requests per second or 10010 if there is not enough funds to add a trade
- cause the underlying error object. eg the error object from a failed request or json parse. Note there will be no cause error for OKCoin errors

$3

``js var OKCoin = require('okcoin');

// Test public data APIs var publicClient = new OKCoin();

// get BTCUSD ticker publicClient.getTicker(console.log, 'btc_usd');

// get BTCUSD order book publicClient.getDepth(console.log, 'btc_usd');

// get trades defaulting to BTCUSD publicClient.getTrades(console.log);

// replace the parameters with your API key and secret var privateClient = new OKCoin('your-api-key', 'your-api-secret');

privateClient.getUserInfo(console.log);

// buy limit order for 0.01 BTC at price 100 USD privateClient.addTrade(console.log, 'btc_usd', 'buy', '0.01', '100'); // sell limit order for 0.01 BTC at price 900 USD privateClient.addTrade(console.log, 'btc_usd', 'sell', '0.01', '900');

// market buy of 25 USD privateClient.addTrade(console.log, 'btc_usd', 'buy_market', null, '25'); // market sell of 0.01 BTC privateClient.addTrade(console.log, 'btc_usd', 'sell_market', '0.01');

privateClient.cancelOrder(console.log, 'btc_usd', 31234567);

// get all open orders privateClient.getOrderInfo(console.log, 'btc_usd', '-1');

// get the first 20 unfilled orders privateClient.getOrderHistory(console.log, 'btc_usd', 0, 1, 20); // get the third 20 filled orders privateClient.getOrderHistory(console.log, 'btc_usd', 1, 3, 20);

// get the first 5 account deposits privateClient.getAccountRecords(console.log, 'btc_usd', 0, 1, 5); // get the first 5 account withdrawals privateClient.getAccountRecords(console.log, 'btc_usd', 1, 1, 5);

Please see the exmaples.js file for more examples