'use strict'; const fs = require('fs'); const https = require('https'); process.stdin.resume(); process.stdin.setEncoding('utf-8'); let inputString = ''; let currentLine = 0; process.stdin.on('data', function(inputStdin) { inputString += inputStdin; }); process.stdin.on('end', function() { inputString = inputString.split('\n'); main(); }); function readLine() { return inputString[currentLine++]; } const axios = require('axios'); async function getNumTransactions(username) { // write your code here // API endpoint: https://jsonmock.hackerrank.com/api/article_users?username=<username> // API endpoint: https://jsonmock.hackerrank.com/api/transactions?&userId=<userId> try { const {data} = await axios.get(`https://jsonmock.hackerrank.com/api/article_users?username=${username}`); if(dat...