Call an API

Add the following (after line 19) in scripts/sample.js
 robot.respond(/get user details for @(.+)/i, async function(res) {
    var sampleFunctions = require('./sampleFunctions.js');
    var userToSearch = res.match[1];
    var searchResult;
    try{
      searchResult = await sampleFunctions.searchApi(userToSearch);
    }
    catch(error){
      res.reply("Error:" + error);
    }
     if(searchResult.length == 0){
      res.reply("No user details found for @" +userToSearch);
      return;
    }
    res.reply("First: " + searchResult[0].first + "\nLast: " + searchResult[0].last + "\nEmail: " + searchResult[0].email);
  });