feat(*): save output to file

Save output to file

settings.example.json

@@ -61,5 +61,6 @@
     "targetValueUsd": 50000,
     "rebalanceDeltaPct": 1.0,
     "minValueBtc": 0.0001
-  }
+  },
+  "outputFile": false
 }

src/index.js

@@ -2,6 +2,7 @@ import Portfolio from './model/Portfolio'
 import Coinmarket from './model/Coinmarket'
 import Coin from './model/Coin'
 import Utils from './Utils'
+import fs from 'fs';
 
 const settings = require('../settings.json')
 
@@ -42,6 +43,14 @@ async function refreshPortfolio() {
 
           Portfolio.removeCoin('USDT')
 
+          if (settings.outputFile) {
+            fs.writeFile(settings.outputFile, Portfolio.getJson(), 'utf8', function(err){
+              if (err) throw err;
+              console.log(`Saved data to ${settings.outputFile}...`)
+            });
+          }
+
+
           console.log(Portfolio.getOutput())
         }
         catch

src/model/Portfolio.js

@@ -223,4 +223,8 @@ export default class Portfolio {
     }
     return table(data, config)
   }
+
+  static getJson() {
+    return JSON.stringify(portfolio, null, 2);
+  }
 }