Real time values for currency conversion

docs/mFunc/getCurrency.md

@@ -15,18 +15,33 @@ function(currencyFrom, currencyTo, value) { ..code.. }
 
 The function takes three parameters and return the output.
 
+## Note
+
+Unlike other functions in the calculator, this is an <u>asynchronous function</u> which fetches the live currency rates to perform the conversion. 
+
 ## Example
 
 ### Code:
 ```js
 const calculator = require('all-round-calculator');
-console.log(calculator.getCurrency('USD','EUR',2570));
+
+async function printConversion() {
+    // Converting 1000 USD to EUR
+    var converted = await calculator.getCurrency("USD", "EUR", 1000);
+
+    /* 
+    Setting a timeout of 2000 miliseconds before printing the converted currency to ensure that the API call has enough time to be completed.
+    Refer to asynchronous programming for more details.
+    */
+    setTimeout(()=>console.log(converted), 2000);
+}
+
+printConversion();
 ```
 
 ### Output:
 ```bash
-
+1042
 ```
-
 ---
 

package/.gitignore

@@ -0,0 +1,27 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+module1.mjs
+module2.mjs
+StateProps.md

package/Functions/Currency.js

@@ -1,4 +1,3 @@
-
 // Currency Converter
 /**
  * Converts a currency
@@ -8,213 +7,15 @@
  * @param {number} value The value you are converting to
  * @return {number} The converted currency
  */
-function getCurrency(currencyFrom, currencyTo, value) {
-  let c1 = currencyFrom;
-  let c2 = currencyTo;
-  let finalC = c1 + "-" + c2;
-  let result = 0;
-
-  switch (finalC) {
-    // Major Currencies
-    case "USD-EUR":
-      result = value * 0.934642;
-      break;
-
-    case "USD-GBP":
-      result = value * 0.798108;
-      break;
-
-    case "USD-CNY":
-      result = value * 6.6706;
-      break;
-
-    case "USD-JPY":
-      result = value * 129.94317;
-      break;
-
-    case "USD-CAD":
-      result = value * 1.263022;
-      break;
-
-    case "USD-AUD":
-      result = value * 1.385431;
-      break;
-
-    case "EUR-USD":
-      result = value * 1.0699284;
-      break;
-
-    case "EUR-GBP":
-      result = value * 0.853918;
-      break;
-
-    case "EUR-CNY":
-      result = value * 7.137064;
-      break;
-
-    case "EUR-JPY":
-      result = value * 139.02988;
-      break;
-
-    case "EUR-CAD":
-      result = value * 1.3513431;
-      break;
-
-    case "EUR-AUD":
-      result = value * 1.4823119;
-      break;
-
-    case "GBP-USD":
-      result = value * 1.2529633;
-      break;
-
-    case "GBP-EUR":
-      result = value * 1.1710721;
-      break;
-
-    case "GBP-CNY":
-      result = value * 8.358017;
-      break;
-
-    case "GBP-JPY":
-      result = value * 162.81401;
-      break;
-
-    case "GBP-CAD":
-      result = value * 1.5825202;
-      break;
-
-    case "GBP-AUD":
-      result = value * 1.7358941;
-      break;
-
-    case "CNY-USD":
-      result = value * 0.1499116;
-      break;
-
-    case "CNY-EUR":
-      result = value * 0.1401136;
-      break;
-
-    case "CNY-GBP":
-      result = value * 0.1196456;
-      break;
-
-    case "CNY-JPY":
-      result = value * 19.479982;
-      break;
-
-    case "CNY-CAD":
-      result = value * 0.1893416;
-      break;
-
-    case "CNY-AUD":
-      result = value * 0.2076921;
-      break;
-
-    case "JPY-USD":
-      result = value * 0.0076957;
-      break;
-
-    case "JPY-EUR":
-      result = value * 0.0071927;
-      break;
-
-    case "JPY-GBP":
-      result = value * 0.006142;
-      break;
-
-    case "JPY-CNY":
-      result = value * 0.0513348;
-      break;
-
-    case "JPY-CAD":
-      result = value * 0.0097198;
-      break;
-
-    case "JPY-AUD":
-      result = value * 0.01066182;
-      break;
-
-    case "CAD-USD":
-      result = value * 0.791752;
-      break;
-
-    case "CAD-EUR":
-      result = value * 0.740005;
-      break;
-
-    case "CAD-GBP":
-      result = value * 0.631903;
-      break;
-
-    case "CAD-CNY":
-      result = value * 5.28146;
-      break;
-
-    case "CAD-JPY":
-      result = value * 102.88274;
-      break;
-
-    case "CAD-AUD":
-      result = value * 1.0969176;
-      break;
-
-    case "AUD-USD":
-      result = value * 0.721797;
-      break;
-
-    case "AUD-EUR":
-      result = value * 0.674622;
-      break;
-
-    case "AUD-GBP":
-      result = value * 0.576072;
-      break;
-
-    case "AUD-CNY":
-      result = value * 4.814819;
-      break;
-
-    case "AUD-JPY":
-      result = value * 93.79259;
-      break;
-
-    case "AUD-CAD":
-      result = value * 0.911646;
-      break;
-
-    // All Currencies
-    case "AED-USD":
-      result = value * 0.2722533;
-      break;
-
-    case "USD-AED":
-      result = value * 3.67305;
-      break;
-
-    case "AED-EUR":
-      result = value * 0.2544594;
-      break;
-
-    case "EUR-AED":
-      result = value * 3.9299;
-      break;
-
-    case "AED-GBP":
-      result = value * 0.2172875;
-      break;
-
-    case "GBP-AED":
-      result = value * 4.602197;
-      break;
 
-    default:
-      break;
-  }
+const axios = require('axios');
 
-  // Returning the final value in rounded form
-  return Math.round(result);
+async function getCurrency(currencyFrom, currencyTo, value) {
+  return axios.get(`https://api.exchangerate.host/convert?from=${currencyFrom}&to=${currencyTo}`)
+   .then((res)=>{
+     const rate = res.data.info.rate;  
+     return Math.round(rate * value);
+  });
 }
 
 module.exports = { getCurrency };

package/package.json

@@ -23,5 +23,8 @@
   "bugs": {
     "url": "https://github.com/Susmita-Dey/all-round-calculator/issues"
   },
-  "homepage": "https://github.com/Susmita-Dey/all-round-calculator#readme"
+  "homepage": "https://github.com/Susmita-Dey/all-round-calculator#readme",
+  "dependencies": {
+    "axios": "^0.27.2"
+  }
 }