apexbank-analytics-dashboard

name	apexbank-analytics-dashboard
description	Build and customize a web-based digital banking dashboard with HTML, CSS, and JavaScript for financial tracking and analytics
triggers	["how do I customize the ApexBank dashboard","set up a digital banking analytics interface","modify ApexBank account balances and transactions","create financial dashboard with ApexBank","integrate custom data into ApexBank","style and theme the banking dashboard","add new features to ApexBank dashboard","configure mock financial data in ApexBank"]

ApexBank Analytics Dashboard Skill

Skill by ara.so — Data Skills collection.

Overview

ApexBank Analytics Hub is a client-side web application that provides a complete digital banking dashboard interface. Built entirely with HTML, CSS, and JavaScript, it offers account monitoring, transaction analysis, investment tracking, savings goals, and financial visualization without requiring a backend server. The dashboard uses glassmorphism design and runs completely in the browser.

Installation

Clone the repository and serve locally:

git clone https://github.com/fhuber82/apexbank-analytics-hub.git
cd apexbank-analytics-hub

Serve using Python's built-in HTTP server:

python -m http.server 8000

Or use Node.js with http-server:

npx http-server -p 8000

Access at http://localhost:8000

For production deployment, upload files to any static hosting service (GitHub Pages, Netlify, Vercel, etc.).

Project Structure

apexbank-analytics-hub/
├── index.html              # Main dashboard entry point
├── css/
│   ├── styles.css         # Core styling and theme
│   └── glassmorphism.css  # Glass effect styling
├── js/
│   ├── app.js             # Main application logic
│   ├── charts.js          # Chart rendering (Chart.js integration)
│   ├── accounts.js        # Account management
│   ├── transactions.js    # Transaction handling
│   ├── calculator.js      # Mortgage/loan calculators
│   └── data.js            # Mock data definitions
└── assets/
    └── images/            # UI assets and icons

Configuration

Customizing Mock Data

Edit js/data.js to modify default accounts, balances, and transactions:

// js/data.js
const mockData = {
  accounts: [
    {
      id: 'acc_001',
      name: 'Primary Checking',
      type: 'checking',
      balance: 5420.50,
      currency: 'USD',
      accountNumber: '****1234'
    },
    {
      id: 'acc_002',
      name: 'Savings Account',
      type: 'savings',
      balance: 12350.00,
      currency: 'USD',
      accountNumber: '****5678'
    }
  ],
  transactions: [
    {
      id: 'txn_001',
      accountId: 'acc_001',
      date: '2026-08-03',
      description: 'Grocery Store',
      amount: -85.42,
      category: 'groceries',
      type: 'debit'
    },
    {
      id: 'txn_002',
      accountId: 'acc_001',
      date: '2026-08-02',
      description: 'Salary Deposit',
      amount: 3500.00,
      : ,
      : 
    }
  ],
  : [
    {
      : ,
      : ,
      : ,
      : ,
      : ,
      : ,
      : 
    }
  ],
  : [
    {
      : ,
      : ,
      : ,
      : ,
      : 
    }
  ]
};

Theming and Styling

Modify CSS variables in css/styles.css:

:root {
  /* Primary Colors */
  --primary-color: #6366f1;
  --secondary-color: #8b5cf6;
  --accent-color: #ec4899;
  
  /* Background */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: rgba(30, 41, 59, 0.7);
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: 10px;
  
  /* Text */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  
  /* Status Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
}

Core Functionality

Account Management

Add new account functionality in js/accounts.js:

// js/accounts.js
class AccountManager {
  constructor() {
    this.accounts = this.loadAccounts();
  }
  
  loadAccounts() {
    const stored = localStorage.getItem('apexbank_accounts');
    return stored ? JSON.parse(stored) : mockData.accounts;
  }
  
  saveAccounts() {
    localStorage.setItem('apexbank_accounts', JSON.stringify(this.accounts));
  }
  
  addAccount(accountData) {
    const newAccount = {
      id: `acc_${Date.now()}`,
      ...accountData,
      createdAt: new Date().toISOString()
    };
    this.accounts.push(newAccount);
    this.saveAccounts();
    return newAccount;
  }
  
  getAccountById(id) {
    return this..( acc. === id);
  }
  
  () {
     account = .(accountId);
     (account) {
      account. += amount;
      .();
      .();
    }
  }
  
  () {
     ..( sum + acc., );
  }
  
  () {
     container = .();
    container. = ..( ).();
  }
}

 accountManager =  ();

Transaction Processing

Handle transactions in js/transactions.js:

// js/transactions.js
class TransactionManager {
  constructor(accountManager) {
    this.accountManager = accountManager;
    this.transactions = this.loadTransactions();
  }
  
  loadTransactions() {
    const stored = localStorage.getItem('apexbank_transactions');
    return stored ? JSON.parse(stored) : mockData.transactions;
  }
  
  saveTransactions() {
    localStorage.setItem('apexbank_transactions', JSON.stringify(this.transactions));
  }
  
  addTransaction(transactionData) {
    const transaction = {
      id: `txn_${Date.now()}`,
      date: new Date().toISOString().split('T')[0],
      ...transactionData
    };
    
    this.transactions.unshift(transaction);
    this..(transaction., transaction.);
    .();
    
     transaction;
  }
  
  () {
     ..( txn. === accountId);
  }
  
  () {
     ..( {
       txnDate =  (txn.);
       txnDate >=  (startDate) && txnDate <=  (endDate);
    });
  }
  
  () {
     filtered = ..( txn. === type);
     totals = {};
    
    filtered.( {
       (!totals[txn.]) {
        totals[txn.] = ;
      }
      totals[txn.] += .(txn.);
    });
    
     totals;
  }
  
  () {
     filtered = [....];
    
     (filter.) {
      filtered = filtered.( txn. === filter.);
    }
     (filter.) {
      filtered = filtered.( txn. === filter.);
    }
    
     container = .();
    container. = filtered.( ).();
  }
}

 transactionManager =  (accountManager);

Chart Visualization

Integrate Chart.js for analytics in js/charts.js:

// js/charts.js
class ChartManager {
  constructor(transactionManager) {
    this.transactionManager = transactionManager;
    this.charts = {};
  }
  
  renderSpendingChart() {
    const ctx = document.getElementById('spending-chart').getContext('2d');
    const categoryTotals = this.transactionManager.getCategoryTotals('debit');
    
    if (this.charts.spending) {
      this.charts.spending.destroy();
    }
    
    this.charts.spending = new Chart(ctx, {
      type: 'doughnut',
      data: {
        labels: Object.keys(categoryTotals),
        datasets: [{
          data: Object.values(categoryTotals),
          backgroundColor: [
            '#6366f1',
            '#8b5cf6',
            '#ec4899',
            ,
            ,
            
          ],
          : 
        }]
      },
      : {
        : ,
        : ,
        : {
          : {
            : ,
            : {
              : ,
              : { :  }
            }
          }
        }
      }
    });
  }
  
  () {
     ctx = .().();
     monthlyData = .(months);
    
     (..) {
      ...();
    }
    
    .. =  (ctx, {
      : ,
      : {
        : monthlyData.,
        : [
          {
            : ,
            : monthlyData.,
            : ,
            : ,
            : 
          },
          {
            : ,
            : monthlyData.,
            : ,
            : ,
            : 
          }
        ]
      },
      : {
        : ,
        : ,
        : {
          : {
            : ,
            : { :  },
            : { :  }
          },
          : {
            : { :  },
            : { :  }
          }
        },
        : {
          : {
            : { :  }
          }
        }
      }
    });
  }
  
  () {
     data = { : [], : [], : [] };
     now =  ();
    
     ( i = months - ; i >= ; i--) {
       month =  (now.(), now.() - i, );
       monthKey = month.(, { :  });
      
       monthStart =  (month.(), month.(), );
       monthEnd =  (month.(), month.() + , );
      
       transactions = ..(
        monthStart.().()[],
        monthEnd.().()[]
      );
      
       income = transactions
        .( t. > )
        .( sum + t., );
      
       expenses = .(transactions
        .( t. < )
        .( sum + t., ));
      
      data..(monthKey);
      data..(income);
      data..(expenses);
    }
    
     data;
  }
}

 chartManager =  (transactionManager);

Savings Goals Tracker

Implement savings goals in js/app.js:

// js/app.js
class SavingsGoalManager {
  constructor() {
    this.goals = this.loadGoals();
  }
  
  loadGoals() {
    const stored = localStorage.getItem('apexbank_goals');
    return stored ? JSON.parse(stored) : mockData.savingsGoals;
  }
  
  saveGoals() {
    localStorage.setItem('apexbank_goals', JSON.stringify(this.goals));
  }
  
  addGoal(goalData) {
    const goal = {
      id: `goal_${Date.now()}`,
      current: 0,
      ...goalData,
      createdAt: new Date().toISOString()
    };
    this.goals.push(goal);
    this.saveGoals();
    return goal;
  }
  
  updateProgress(goalId, amount) {
    const goal = ..( g. === goalId);
     (goal) {
      goal. = .(goal. + amount, goal.);
      .();
      .();
    }
  }
  
  () {
     (goal. / goal.) * ;
  }
  
  () {
     container = .();
    container. = ..( {
       progress = .(goal);
       remaining = goal. - goal.;
      
       ;
    }).();
  }
}

 savingsGoalManager =  ();

Fund Transfer System

Implement transfers between accounts:

// js/app.js
class TransferManager {
  constructor(accountManager, transactionManager) {
    this.accountManager = accountManager;
    this.transactionManager = transactionManager;
  }
  
  transfer(fromAccountId, toAccountId, amount, description = 'Transfer') {
    const fromAccount = this.accountManager.getAccountById(fromAccountId);
    const toAccount = this.accountManager.getAccountById(toAccountId);
    
    if (!fromAccount || !toAccount) {
      throw new Error('Invalid account ID');
    }
    
    if (fromAccount.balance < amount) {
      throw new Error('Insufficient funds');
    }
    
    // Debit from source
    this.transactionManager.addTransaction({
      accountId: fromAccountId,
      description: `${description} to ${toAccount.name}`,
      amount: -amount,
      category: 'transfer',
      type: 'debit'
    });
    
    // Credit to destination
    ..({
      : toAccountId,
      : ,
      : amount,
      : ,
      : 
    });
    
     {
      : ,
      : fromAccount.,
      : toAccount.,
      amount
    };
  }
  
  () {
     form = .();
    
    form.(,  {
      e.();
      
       formData =  (form);
       fromAccountId = formData.();
       toAccountId = formData.();
       amount = (formData.());
       description = formData.() || ;
      
       {
         result = .(fromAccountId, toAccountId, amount, description);
        .(, );
        form.();
      }  (error) {
        .(error., );
      }
    });
  }
  
  () {
     notification = .();
    notification. = ;
    notification. = message;
    ..(notification);
    
    ( {
      notification.();
    }, );
  }
}

 transferManager =  (accountManager, transactionManager);

Mortgage Calculator

Add financial calculator in js/calculator.js:

// js/calculator.js
class MortgageCalculator {
  calculate(principal, annualRate, years) {
    const monthlyRate = annualRate / 100 / 12;
    const numPayments = years * 12;
    
    const monthlyPayment = principal * 
      (monthlyRate * Math.pow(1 + monthlyRate, numPayments)) / 
      (Math.pow(1 + monthlyRate, numPayments) - 1);
    
    const totalPayment = monthlyPayment * numPayments;
    const totalInterest = totalPayment - principal;
    
    return {
      monthlyPayment: monthlyPayment.toFixed(2),
      totalPayment: totalPayment.toFixed(2),
      totalInterest: totalInterest.toFixed(2),
      principal: principal.toFixed(2)
    };
  }
  
  generateAmortizationSchedule(principal, annualRate, years) {
    const monthlyRate = annualRate / 100 / 12;
    const numPayments = years * 12;
    const monthlyPayment = this.calculate(principal, annualRate, years).monthlyPayment;
    
    const schedule = [];
     remainingBalance = principal;
    
     ( month = ; month <= numPayments; month++) {
       interestPayment = remainingBalance * monthlyRate;
       principalPayment = (monthlyPayment) - interestPayment;
      remainingBalance -= principalPayment;
      
      schedule.({
        month,
        : (monthlyPayment),
        : principalPayment,
        : interestPayment,
        : .(, remainingBalance)
      });
    }
    
     schedule;
  }
  
  () {
     form = .();
     resultsDiv = .();
    
    form.(,  {
      e.();
      
       formData =  (form);
       principal = (formData.());
       rate = (formData.());
       years = (formData.());
      
       results = .(principal, rate, years);
      
      resultsDiv. = ;
    });
  }
}

 mortgageCalculator =  ();

Application Initialization

Main app initialization in js/app.js:

// js/app.js
document.addEventListener('DOMContentLoaded', () => {
  // Initialize managers
  accountManager.renderAccounts();
  transactionManager.renderTransactions();
  savingsGoalManager.renderGoals();
  
  // Render charts
  chartManager.renderSpendingChart();
  chartManager.renderCashFlowChart(6);
  
  // Setup forms
  transferManager.setupTransferForm();
  mortgageCalculator.setupCalculatorForm();
  
  // Update dashboard summary
  updateDashboardSummary();
  
  // Setup event listeners
  setupFilterListeners();
  setupThemeToggle();
});

function updateDashboardSummary() {
  const totalBalance = accountManager.getTotalBalance();
  const monthTransactions = transactionManager.getTransactionsByDateRange(
    new Date(new Date().getFullYear(), new Date().getMonth(), 1).toISOString().split('T')[0],
    new Date().toISOString().split()[]
  );
  
   monthIncome = monthTransactions
    .( t. > )
    .( sum + t., );
  
   monthExpenses = .(monthTransactions
    .( t. < )
    .( sum + t., ));
  
  .(). = ;
  .(). = ;
  .(). = ;
  .(). = ;
}

 () {
  .()?.(,  {
    transactionManager.({ : e.. });
  });
  
  .()?.(,  {
    transactionManager.({ : e.. });
  });
}

 () {
   themeToggle = .();
   currentTheme = .() || ;
  
  ..(, currentTheme);
  
  themeToggle?.(,  {
     newTheme = ..() ===  ?  : ;
    ..(, newTheme);
    .(, newTheme);
  });
}

Common Patterns

Adding Custom Dashboard Widgets

// Create custom widget
class CustomWidget {
  constructor(containerId) {
    this.container = document.getElementById(containerId);
  }
  
  render(data) {
    this.container.innerHTML = `
      <div class="custom-widget glass-card">
        <h3>${data.title}</h3>
        <div class="widget-content">
          ${data.content}
        </div>
      </div>
    `;
  }
}

// Use widget
const widget = new CustomWidget('widget-container');
widget.render({
  title: 'Credit Score',
  content: '<div class="score">750</div>'
});

Exporting Data to CSV

function exportTransactionsToCSV() {
  const transactions = transactionManager.transactions;
  const headers = ['Date', 'Description', 'Category', 'Amount', 'Type'];
  
  const csvContent = [
    headers.join(','),
    ...transactions.map(txn => 
      [txn.date, txn.description, txn.category, txn.amount, txn.type].join(',')
    )
  ].join('\n');
  
  const blob = new Blob([csvContent], { type: 'text/csv' });
  const url = URL.createObjectURL(blob);
  const link = document.createElement('a');
  link.href = url;
  link.download = `transactions_${new Date().toISOString().split('T')[0]}.csv`;
  link.click();
}

Implementing Search Functionality

function setupTransactionSearch() {
  const searchInput = document.getElementById('transaction-search');
  
  searchInput.addEventListener('input', (e) => {
    const query = e.target.value.toLowerCase();
    const filtered = transactionManager.transactions.filter(txn =>
      txn.description.toLowerCase().includes(query) ||
      txn.category.toLowerCase().includes(query)
    );
    
    renderFilteredTransactions(filtered);
  });
}

function renderFilteredTransactions(transactions) {
  const container = document.getElementById('transactions-list');
  container.innerHTML = transactions.map(txn => `
    <div class="transaction-item ${txn.type}">
      <div class="transaction-details">
        <div class="transaction-description">${txn.description}</div>
        <div class="transaction-date">${txn.date}</div>
      </div>
      <div class="transaction-amount">${txn.amount.toFixed(2)}</div>
    </div>
  `).join();
}

Troubleshooting

Charts Not Rendering

Ensure Chart.js is loaded before chart initialization:

<!-- Add to index.html before your scripts -->
<script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.0/dist/chart.umd.min.js"></script>

Data Not Persisting

Check localStorage availability:

function checkLocalStorage() {
  try {
    const test = '__test__';
    localStorage.setItem(test, test);
    localStorage.removeItem(test);
    return true;
  } catch (e) {
    console.error('localStorage not available:', e);
    return false;
  }
}

if (!checkLocalStorage()) {
  alert('localStorage is required for data persistence');
}

CORS Errors on Local Development

Always serve via HTTP server, not file:// protocol:

# Python 3
python -m http.server 8000

# Node.js
npx http-server -p 8000

# PHP
php -S localhost:8000

Glassmorphism Effects Not Showing

Ensure backdrop-filter support and CSS properly loaded:

/* Fallback for older browsers */
.glass-card {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px); /* Safari support */
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Check support */
@supports (backdrop-filter: blur(10px)) {
  .glass-card {
    background: rgba(30, 41, 59, 0.5);
  }
}

Mobile Responsiveness Issues

Add viewport meta tag and media queries:

<meta name="viewport" content="width=device-width, initial-scale=1.0">

@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .account-card {
    font-size: 14px;
  }
}