Introduction to CoinTool
CoinTools is A Chrome Extension that has a few useful tools and graphs for Cryptocurrency.
Previous Contributions
- v0.0.1 Introduction to CoinTools! A Cryptocurrency Chrome Extension
Technology Stacks
Javascript that runs in Chrome.
Github of CoinTools
https://github.com/DoctorLai/CoinTools
Chrome Webstore
It is available online at Chrome Webstore.
CoinTools v0.0.2 Feature
Along with bug fixes and code refactoring, this version has the following features:
- Any two cryptocurrency conversions.
- UI Localisation with Simplified Chinese.
Commits
Roadmap of CoinTools
- real-time graphs
- search cryptocurrency
- historical data
CoinTools Screenshots
You can enter each line any two crytocurrency separated by a space.
You can now select Simplified Chinese from the setting tab.
And when APP is loaded, it will call coinmarkcap API to convert, for example:
UI will be updated to Chinese immediately once you click Save.
Javascript Async and Await to Convert from one coin to another
// ajax calling API
const getPriceOfUSD = (coin) => {
return new Promise((resolve, reject) => {
let api = "https://api.coinmarketcap.com/v1/ticker/" + coin + '/';
fetch(api, {mode: 'cors'}).then(validateResponse).then(readResponseAsJSON).then(function(result) {
resolve(result[0].price_usd);
});
});
}
// ajax get conversion
const getConversion = async(coin1, coin2) => {
let api1 = getPriceOfUSD(coin1);
let api2 = getPriceOfUSD(coin2);
return await api1 / await api2;
}
// conversion
const processConversion = (s) => {
let arr = s.trim().split("\n");
for (let i = 0; i < arr.length; i ++) {
let pair = arr[i].split(" ");
if (pair.length == 2) {
let a = pair[0].trim().toLowerCase();
let b = pair[1].trim().toLowerCase();
var pat = /^[a-zA-Z\-]+$/;
if (pat.test(a) && pat.test(b)) {
let dom = $('div#conversion_results');
let dom_id = "convert_" + a.replace("-", "") + "_" + b.replace("-", "");
dom.append('<div id="' + dom_id + '"> </div>');
getConversion(a, b).then(x => {
$('div#' + dom_id).html("<h4>1 " + a.toUpperCase() + " = <span class=yellow>" + x + "</span> " + b.toUpperCase() + "</h4>");
});
}
}
}
}
License
Contribution Welcome
Github: https://github.com/DoctorLai/SteemTools/
- Fork it!
- Create your feature branch: git checkout -b my-new-feature
- Commit your changes: git commit -am ‘Add some feature’
- Push to the branch: git push origin my-new-feature
- Submit a pull request.
Chrome Webstore
Install the CoinTools Now!
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