Support Online
MirrorLooking Glass
GenixNodeGenixNode
Client Panel
Skip to main content

Lightweight Invoice Application Development with Node.js and Vue.js: User Interface

What will you learn in this guide?​

In this guide, you will develop a Vue.js-based user interface for the invoice API prepared with Node.js.
User login, invoice creation and invoice listing operations are handled in a single panel.

🧠 Technical Summary​

This guide explains how to create an invoice application interface with Vue.js.
The goal is to complete user interaction while the backend is ready.
The solution is Vue Router, Axios and component-based architecture.

Prerequisites​

  • Node.js v16+ must be installed
  • Vue CLI must be installed
  • Basic knowledge of Vue.js and JavaScript is sufficient
  • Backend API (Serial Part 1) must be running

1️⃣ Creating the Vue.js Project​

Frontend and backend are kept in separate directories.
This structure provides scalability.

npx @vue/cli create invoicing-app-frontend
  • This command creates a Vue.js project containing Vue Router.
cd invoicing-app-frontend
npm run serve
  • This command starts the development server.

2️⃣ Axios and Bootstrap Installation​

  1. Axios is used to communicate with the backend.
npm install axios@0.21.1
  • This package handles HTTP requests.
  • Public/index.html is edited to add Bootstrap.
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet">
  • This style file provides a responsive interface.

3️⃣ Vue Router Configuration​

  1. There are two main routes in the application.

  2. / → Login / Register

  3. /dashboard → User Panel


const routes = [
  { path: '/', component: SignUp },
  { path: '/dashboard', component: Dashboard }
]
  • This structure manages page transitions.

4️⃣ Header and Navigation Components​

  1. Header shows the application title and user information.

<Header :user="user" />
  • Navigation controls in-panel transitions.
setActive(option) {
  this.$parent.$parent.isactive = option
}
  • This method changes the active tab.

5️⃣ Login and SignUp Component​

  1. User login and registration are done here.
<form @submit.prevent="login">
  • This usage prevents page refresh.
axios.post("http://localhost:3128/login", formData)
  • This request authenticates the user.

6️⃣ Dashboard Structure​

  1. Dashboard shows the invoice creation screen by default.
<CreateInvoice v-if="isactive === 'create'" />
  • Tabs are replaced with the Navigation component.

7️⃣ Create Invoice​

  1. User adds invoice and transaction items.
this.transactions.push({ id, name, price })
  • This code adds new action.

this.invoice.total_price = total

  • This process calculates the total amount.

  • Data is sent to the backend.

axios.post("http://localhost:3128/invoice", formData)

8️⃣ Invoice Listing (ViewInvoices)​

  1. User's invoices are listed.
axios.get(`/invoice/user/${this.user.id}`)
  • This request returns the user's invoices.

❓ Frequently Asked Questions (FAQ)​

1. I'm getting a Network Error, why? Make sure the backend server is running.

2. How to solve the CORS error? CORS permissions must be opened on the backend side.

3. Is it mobile compatible? Yes, it works responsively thanks to Bootstrap.

4. Can the frontend be placed on a separate server? Yes, it is recommended in a production environment.

🎯 Result​

In this guide, you developed the user interface of a Node.js-based invoice application with Vue.js. Registration, login, invoice creation and listing processes are completed.

You can make your application secure and scalable by hosting it on the GenixNode infrastructure. If the frontend is ready, it's time to send JWT and invoice 🚀