crypto-client's Introduction

crypto-crawler

This project is deprecated in favor of crypto-crawler-rs

Crawl orderbook and trade messages from crypto exchanges.

How to use

/* eslint-disable */
const crawl = require('crypto-crawler').default;

function processMsgCallback(msg) {
  console.dir(msg);
}

(async () => {
  await crawl('CoinbasePro', 'Spot', ['OrderBook'], ['BTC_USD'], processMsgCallback);
})();

Quickstart

npx crypto-crawler --exchange CoinbasePro --marketType Spot --channelType OrderBook --pairs BTC_USD

Help

npx crypto-crawler --help

API Manual

There is only one API in this library:

/**
 * Crawl messages from a crypto exchange.
 *
 * @param exchange The crypto exchange name
 * @param marketType Market type, e.g., Spot, Futures
 * @param channelTypes Channel types to crawl, e.g., Trade, BBO, OrderBook
 * @param pairs Trading pairs, e.g., BTC_USDT
 * @param msgCallback The callback function to process messages
 * @returns void
 */
export default function crawl(
  exchange: string,
  marketType: MarketType,
  channelTypes: readonly ChannelType[],
  pairs: readonly string[],
  msgCallback?: MsgCallback,
): Promise<void>;

Related Projects

crypto-client, An unified client for all cryptocurrency exchanges.
coin-bbo, a crawler to get realtime BBO messages from crypto exchanges.

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crypto-client's Issues

cannot place order on newdex,

(node:8672) UnhandledPromiseRejectionWarning: AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:

assert_1.default.ok(config_1.USER_CONFIG.KRAKEN_API_KEY)

at privateMethod (/home/cyber/node_modules/crypto-client/dist/exchanges/kraken.js:31:22)
at Object.queryAllBalances (/home/cyber/node_modules/crypto-client/dist/exchanges/kraken.js:116:28)
at queryAllBalances (/home/cyber/node_modules/crypto-client/dist/index.js:308:35)
at Object.queryBalance (/home/cyber/node_modules/crypto-client/dist/index.js:339:28)
at testKraken (/home/cyber/node_modules/crypto-client/dist/cli.js:190:32)
at /home/cyber/node_modules/crypto-client/dist/cli.js:210:11
at process._tickCallback (internal/process/next_tick.js:68:7)
at Function.Module.runMain (internal/modules/cjs/loader.js:745:11)
at findNodeScript.then.existing (/home/cyber/.nvm/versions/node/v10.15.1/lib/node_modules/npm/node_modules/libnpx/index.js:268:14)

(node:8672) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:8672) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
![Screenshot from 2020-02-26 18-59-33](https://user-images.githubusercontent.com/31106916/75343097-47d4fc00-58ca-11ea-8a10-d2392de2c3fe.png)

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