kofo-sdk
v2.0.9
Published
KOFO client js sdk
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KOFO SDK
KOFO cross chain atomic exchange，Currently supporting BTC USDT ETH/ERC20 HPB TRON ZILLIQA EOS BOS MEETONE BNB KLT
Install and import
npm install kofo-sdk --saveconst {Kofo, Utils} = require('kofo-sdk');
import {Kofo, Utils} from 'kofo-sdk';Include
- Html script tag useage demo
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
</head>
<body>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<script src="https://atomic.kofo.io/kofo/kofosdk.js"></script>
<script src="https://atomic.kofo.io/kofo/kofowallet.js"></script>
<script>
//Kofo is a global object. Contains Utils and Sdk, e.g: Kofo.Utils.createKofoId() and Kofo.Sdk.init(options).
//Documentation at https://github.com/kofoproject/kofo-sdk/blob/master/docs/API.md
const FIELDS = ['deviceId', 'kofoId', 'nonce', 'overwrite', 'timestamp'];
const OPT = {
privateKey: {
EOS: '5Jh1n436LqN2XcXScqo22pg7X66CLrMeM6HxCRVGqoheQEnMeYh', //Test network
BOS: '5Jh1n436LqN2XcXScqo22pg7X66CLrMeM6HxCRVGqoheQEnMeYh', //Test network
MEETONE: '5Jh1n436LqN2XcXScqo22pg7X66CLrMeM6HxCRVGqoheQEnMeYh' //Test network
},
secret: '3794ff84216d866b8e5f3e890f7dcc2ae3bfe3f3e05809f1c050ab16b93bd491', //KOFO ID = KOFO2BHsbzE6ktUGD9a9xSQjChvQzR7B8eeDkN57wznNSL936
deviceId: '07FED02BDB20EFE52',
nonce: 1,
overwrite: 0
};
let cacheMap = new Map();
let kofo;
let readData = (key) => {
return cacheMap.get(key);
};
let insertData = (key, value) => {
return cacheMap.set(key, value);
};
let createMqOptions = (options) => {
options = _.cloneDeep(options);
if (!options.hasOwnProperty('timestamp')) {
options.timestamp = new Date().getTime();
}
if (!options.hasOwnProperty('kofoId')) {
options.kofoId = Kofo.Utils.createKofoIdBySecret(options.secret);
}
let secret = options.secret;
options = _.pick(options, FIELDS);
let usernameArrays = _.map(FIELDS.sort(), (key) => {
return `${key}=${options[key]}`;
});
let username = usernameArrays.join('&');
let password = Kofo.Utils.sign(secret, username);
return {username, password, kofoId: options.kofoId};
};
let resetMqOptions = () => {
return createMqOptions(OPT);
};
let createMsgEel = (data) => {
let el = document.createElement("div");
el.innerHTML = `<div class="panel panel-default"><div class="panel-heading"><h5 class="panel-title">${_.toUpper(data.type)}</h5></div><div class="panel-body">${data.type === 'init_mqtt' ? data.message : JSON.stringify(data)}</div></div>`;
document.getElementById('content').append(el);
};
let listener = (data) => {
createMsgEel(data);
};
let signatureTxHandler = async (data) => {
createMsgEel(data);
let {type, chain, currency, rawTransaction, settlementId} = data;
let {privateKey} = OPT;
let wallet = KofoWallet.importPrivateWallet({
chain: chain.toUpperCase(),
currency: currency.toUpperCase(),
privateKey: privateKey[chain.toUpperCase()]
});
let signedRawTransaction = await wallet.sign(rawTransaction);
kofo.signatureCallback(type, chain, currency, settlementId, signedRawTransaction);
};
let initSdk = () => {
//Contact us for specific “mqUrl” “gateway” “settlement” if testing is required
let options = {
mqUrl: 'ws://localhost:8083/mqtt',
gateway: 'http://localhost:8080/gateway',
settlement: 'http://localhost:8080/settlement-server',
insertData,
readData,
resetMqOptions,
mqOptions: createMqOptions(OPT),
cacheEncrypt: false
};
if (kofo)
return alert('Kofo sdk has been initialized!');
kofo = Kofo.Sdk.init(options);
kofo.subscribe('kofo_status_notice', listener);
kofo.subscribe('kofo_tx_signature', signatureTxHandler);
};
let stop = () => {
if (!kofo)
return alert('Kofo is not initialized!');
kofo.stop();
kofo = null;
};
let printCache = () => {
let cache = {};
cacheMap.forEach((value, key) => {
cache[key] = value;
});
console.log(JSON.stringify(cache));
};
</script>
<div>
<div class="button-div">
<button class="btn btn-primary" onclick="initSdk()">init sdk</button>
<button class="btn btn-danger" onclick="stop()">stop connect</button>
<button class="btn btn-default" onclick="printCache()">print cache</button>
</div>
<div id="content"></div>
</div>
</body>
</html>
<style>
.button-div {
padding: 5px;
width: 100%;
height: 100%;
text-align: center;
}
#content {
width: 100%;
padding-left: 20px;
padding-right: 20px;
padding-top: 8px;
}
.panel {
margin-bottom: 5px;
}
.panel-body {
word-break: break-word;
}
</style>