Fintech Solutions/2026

Invoiy - Web App Case Study

Invoiy is a modern invoicing and payment management platform designed to simplify billing workflows, organize financial records, and help businesses manage invoices and payments through one streamlined digital experience.

Client
Invoiy
Industry
Payments operations
Year
2026
Duration
3 months
Website
invoiy.com
Payments operations system for Invoiy
3 surfaces Web application Marketing site · merchant dashboard · hosted checkout
1 REST API Integrations Create payments, poll status, redirect & webhooks
Non-custodial Payment model Funds settle in the merchant’s linked gateway accounts

invoiy.com · Payment infrastructure for growing businesses · Built by Nocfinity

Challenge & product goals

Nocfinity × INVOIY · Fintech web app

What the business needed

INVOIY needed a custom web application that lets merchants accept online payments without giving up control of funds. The product had to connect each business to its own payment gateways (mobile wallets, bank rails, and card processors), provide a branded hosted checkout, and expose a developer-friendly payment API for e-commerce and SaaS sites.

Starting constraints

0Unified checkout
ManualReconciliation
Per-gatewayIntegrations
NoMerchant portal
LimitedReporting
BrandTrust gap

Merchants were stitching together separate tools; INVOIY set out to ship one platform for checkout, tracking, and gateway management.

Engagement scope

  • Product & UX — Information architecture for marketing pages, merchant onboarding, and multi-step checkout tuned for mobile and desktop.
  • Full-stack development — Laravel web application with secure authentication, role-based admin, and production deployment on Railway.
  • Payments engineering — Gateway adapters, invoice lifecycle, verification flows (including QR and redirect returns), and webhook handling.
  • API & documentation — REST endpoints for creating and reading payments, in-dashboard API docs, and integration patterns for GET/POST returns.
  • Operations tooling — Platform admin for merchants, packages, credits, gateway accounts, and operational reporting.
Product promise on the live site: “Accept payments. Keep control of your money.” — connect your gateways, add checkout to your website, and receive customer payments directly in linked provider accounts while INVOIY orchestrates the flow.

Platform architecture

Custom web application development

How the system is built

Nocfinity delivered INVOIY as a modular fintech web application: a public marketing site, authenticated merchant workspace, customer-facing checkout host, and platform administration — all sharing one domain model for payments, merchants, and gateways.

LaravelApplication core
RESTMerchant API
Multi-tenantMerchants & keys
RailwayCloud hosting

Payment flow (customer → merchant money)

1
API or dashboard creates an invoice Merchant systems POST a payment with amount, customer metadata, and return URLs. INVOIY issues an invoice number and hosted payment_url.
2
Customer completes hosted checkout Shoppers choose an enabled method on INVOIY’s checkout (mobile wallet, card, or bank gateway). Sensitive credentials stay with the provider.
3
Verification & status sync The platform verifies callbacks, QR, or redirect returns, updates invoice state (pending, paid, expired), and notifies the merchant via redirect and optional webhook.
4
Settlement in merchant gateway Funds route to the merchant’s linked gateway account — INVOIY does not hold customer balances; it provides infrastructure and tracking.

Engineering focus areas

Layer What Nocfinity built Why it matters for SEO & scale
Checkout UI Responsive multi-step hosted checkout, method routing, QR support Conversion-ready web experience
Merchant dashboard Payments list, reports, charts, settings, API keys Self-serve SaaS operations
Gateway layer Pluggable adapters (e.g. bKash, bank & card processors) Payment gateway integration
Custom domains Checkout on merchant hostnames with SSL Brand trust at payment time
Admin console Merchants, packages, credits, gateway accounts, platform settings Operable fintech platform

Features shipped

Web app · API · payments

What merchants get on day one

The release bundles everything a growing business needs to launch online payment acceptance with a single integration — from dashboard visibility to developer documentation inside the product.

Merchant workspace Dashboard

  • Payment overview — live sync, success rate, volume trend, and recent transactions.
  • Reports — filterable payment history and export-friendly views for finance teams.
  • Settings — API credentials, checkout domains, timezone, and notification preferences.

Developer experience API

  • REST payment API — create invoices, read status until paid, standard HTTP errors.
  • Hosted checkout link — shareable URL for carts, invoices, and top-ups without custom UI work.
  • Returns & webhooks — configurable GET/POST redirect with invoice_id and optional webhook URL.

Gateway & checkout capabilities

Multi-methodWallets · cards · banks
QR & redirectMobile wallet flows
White-labelCustom checkout domains
Marketing site SEO foundation: clear product positioning (“payment infrastructure for growing businesses”), semantic headings, feature-led copy on gateways and pricing, and fast landing experience — supporting discoverability for payment platform, hosted checkout, and payment API intent searches.

Outcomes & why it matters

Web application development

From idea to production payment platform

INVOIY is a working example of how Nocfinity designs and ships custom fintech web applications — not a static marketing site, but a multi-role product with real money movement, third-party gateways, and ongoing operational needs.

Why this project stands out

  • Non-custodial by design — architecture reinforces trust: INVOIY orchestrates checkout and status; merchants keep gateway relationships and settlements.
  • One codebase, three audiences — prospects, merchants, and administrators each get purpose-built interfaces on shared payment logic.
  • Integration-ready — documented REST API and hosted checkout reduce time-to-first-payment for engineering teams.
  • Built to operate — admin tooling, credits, packages, and reporting support platform growth beyond the MVP.

Technologies: Laravel · PHP · relational database · REST API · server-rendered and progressive checkout UI · cloud deployment (Railway) · custom domain TLS for checkout hosts.

Learn more: Visit invoiy.com for product overview, gateway list, and merchant signup. For similar web application development or payment products, contact Nocfinity.

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