statBot bug fix on MYR conversion and added testing

StatBot was implemented into #teammalaysia few weeks ago, but there exist a bug on the conversion to MYR (Malaysian Ringgit).

Commits to github repo

Bug Fixes

• What was the issue(s)?
  • Wrongly converted MYR ratio.
    
  • The reason why this happen because the API that I use mistook MYR as MyriadCoin
• What was the solution?
  • Use coinmarketcap's API
  • Since coinmarketcap's required long name (e.g. steem-dollars), I use hardcoded Short name and Long name pair in crypto.json from this github repo by @codingdefined.

Fixed bug

New Features

What feature(s) did you add?

• The price now is using CoinMarketCap API, and MYR is correctly converted
• A basic testing is added.
• Added sbd/s suggested by @awesomianist

How did you implement it/them?

• Price Codes
  crypto.json example

  "steem-dollars": "steem-dollars",
  "sbd": "steem-dollars",

• Get price with axios library in api.js using functions

let getOnlyPrice = async (coin, currency) => {
  let res = await axios.get(
    `https://api.coinmarketcap.com/v1/ticker/${crypto[coin]}/?convert=${currency}`
  ).catch((err) => 'Wrong Coin');
  let price = res.data[0][`price_${currency.toLowerCase()}`] || '-';
  return price;
};
let countRatio = async (coin1, coin2) => {
  let coinPrice1, coinPrice2;
  return await getOnlyPrice(coin1, 'USD')
    .then(price1 => {
      coinPrice1 = price1;
      return getOnlyPrice(coin2, 'USD').then(price2 => price2);
    })
    .then(price2 => {
      coinPrice2 = price2;
    })
    .then(() => {
      return coinPrice1/coinPrice2;
    });
};

• Testing

import { getPrice, getOnlyPrice, countRatio } from '../api';
// api.js
getPrice('steem', 'usd').then(data =>
  console.log(`getPrice of Steem: ${data}`)
);
getOnlyPrice('steem', 'usd').then(data =>
  console.log(`getOnlyPrice of Steem: ${data}`)
);
countRatio('steem', 'sbd').then(data =>
  console.log(`countRatio of Steem/SBD: ${data}`)
);

About the Projects

• What is the project about?
  Most of our member are on discord all the time, won't it be nice that everything can be done on discord? Therefore, I had this idea of creating a bot that solves my problem, and maybe others too! This bot currently holds utility feature for all steemit user!

• Technology Stack
  Node.js

• Roadmap

  • Suitable use of SteemSQL to query useful statistics (User status, etc)
  • Create an API server instead of inbound SQL queries to seperate API backend with Discord Front end

• How to contribute?
  This project repo is on GitHub with MIT License. Pull Request Contribution and Issue Filling are welcome.