Get Transactions in a Loop

by afrankel

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.18.0/axios.js"></script>
<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
<div id="console-log"></div>

CSS

.console-line {
  font-family: monospace;
  margin: 2px;
}

JavaScript 1.7

const apiURL = 'https://floating-meadow-81947.herokuapp.com/api'

// Simulation of a fictitious bank
// Assuming that all of the processing occurs via a database or API
class SolutionStreetBank {

  // Get customer record
  getCustomer(custId) {
    return axios.get(apiURL + '/Customers/' + custId)
    .then(response => {
      return response.data;
    })
    .catch(error => {
      console.log(error);
    })
  }

  // Get Accounts based on Customer ID
  getAccounts(custId) {
    var self = this;
    return axios.get(apiURL + '/Accounts')
    .then(response => {
      // filter array results based on Customer ID
      return self.filterResults(
        custId, 'custId', response.data);
    })
    .catch(error => {
      console.log(error);
    });
  }

  // Get Transactions based on Account ID
  getTransactions(accountId) {
    var self = this;
    return axios.get(apiURL + '/Transactions')
    .then(response => {
      // filter array results based on Account ID
      return self.filterResults(
        accountId, 'accountId', response.data);
    })
    .catch(error => {
      console.log(error);
    });
  }

  // Helper function to delay to request for demo purposes
  // if you want to delay a call 2 seconds for example use this 
  // statement prior to a call:
  // 
  // return this.delay(2000).then(function() {
  delay(time, value) {
    return new Promise(function(resolve) { 
        setTimeout(resolve.bind(null, value), time)
    });
  }

  // Helper function to return subset of array that matches id
  filterResults(id, idName, array) {
    let returnArray = []
    for( var i=0; i<array.length; i++) {
      if(array[i][idName] === id) {
        returnArray.push(array[i]); 
      }
    }
    return returnArray;
  }
}

async function getTransactionsInALoop() {
 const bank = new SolutionStreetBank()
 console.log("getting customer...");
 const cust = await bank.getCustomer(1)
 console.log("getting accounts...");
 const accounts = await...