Do you have pre-developed plugins or code for Node.js, Express & Fastify?

No, we do not sell pre-developed or off-the-shelf plugins. We take your acquiring bank's API documentation, sandbox credentials, and platform requirements, then write custom, unencrypted code tailored specifically to your Node.js, Express & Fastify setup.

Who performs the live transaction testing on Node.js, Express & Fastify?

Our developers thoroughly verify all success, failure, and webhook states in the official sandbox test environment. Once delivered to your live environment, your team verifies the live connection and live payment on your side.

What source code ownership do we receive for our Node.js, Express & Fastify integration?

You receive 100% full source code ownership with zero licensing fees, zero callbacks to our servers, and zero obfuscation.

Custom Backend Framework Integration Service

Node.js, Express & Fastify Payment Gateway & IPG Development

High-Throughput Payment Microservices & Asynchronous Webhook Workers

For high-volume web applications, SaaS platforms, and mobile backends. We construct dedicated Node.js payment microservices with asynchronous event processing, cryptographic signature validation, and database state machines.

Submit Bank API Document

How We Develop for Node.js, Express & Fastify

We are custom developers, not a payment gateway or reseller of pre-packaged extensions. We do not provide generic off-the-shelf code. When your commercial bank gives you an API integration guide (such as Mastercard MPGS, CyberSource, Redsys, or a regional switch) and no native module exists for Node.js, Express & Fastify, our developers write a dedicated, secure, and fully customized integration directly for your application codebase.

100% Unencrypted Source Code Comprehensive Sandbox Testing Client-Side Live Verification

Why Custom Code is Required for Node.js, Express & Fastify

Full code control allows us to optimize payment throughput, handle thousands of concurrent checkout requests, and maintain persistent connections with acquiring banks.

Notice on Platform Compatibility: We exclusively work on platforms where source code modifications, custom plugins, or API webhooks are fully permissible. Because Node.js, Express & Fastify allows source control and custom server logic, our developers can implement seamless bank redirect handshakes, tokenized iframe sessions, and HMAC cryptographic listeners with zero friction.

Technical Implementation Architecture

Express / Fastify REST API endpoints for checkout initiation

Raw body parsing middleware for cryptographic webhook verification

Redis queues for resilient callback processing during traffic spikes

JWT / session-based payment authorization checks

Developer Quality & Security Standards

✓

Cryptographic HMAC SHA256 timing-safe comparison

✓

Graceful error handling on upstream bank timeouts

✓

Comprehensive JSON structured logging for audit compliance

Client-Side Live Payment Verification Process

We do not execute live card tests or trigger live financial debiting on client merchant accounts. Our development team sets up complete mock and sandbox fixtures to validate all 3DS authorization, capture, and callback paths. When we release the custom plugin/module to your staging or production server, your authorized team executes the live connection test on your side. Once your live test payment clears through your merchant account, development is signed off and delivered.

Ready to Integrate Node.js, Express & Fastify?

Have your bank API docs or merchant portal credentials ready? Our payment developers will examine the specs and confirm feasibility.

Average Delivery: 3 to 5 business days

PCI-DSS SAQ-A Compliant Flow

Full Source Code & Installable Package

Request Milestone Proposal

Gateways Commonly Linked to Node.js, Express & Fastify

CyberSourceStripeAdyenRazorpayCashfreePaystackM-Pesa

Free Architectural Review

Request Custom Integration Scope

Step 1 of 4

Gateway

Platform

Readiness

Contact

Explore Other Code-Accessible Platforms

CMS & E-Commerce

WordPress / WooCommerce

We develop bespoke, secure, and production-tested WordPress plugins for any local commercial bank or international payment gateway. We do not use bloated third-party wrapper plugins; our team codes a clean, object-oriented plugin following WordPress & WooCommerce Core Standards with full WooCommerce Checkout Blocks support, 3D Secure 2.2 authentication, and HMAC-verified webhook listeners.

View Specifications

Custom Backend Framework

Custom Next.js & React

For modern Jamstack and headless e-commerce architectures, we build high-performance payment funnels using Next.js App Router, Server Actions, and Node.js backend handlers. We integrate bank tokenization iframes (Flex Microform, Hosted Sessions) to ensure zero PCI scope while providing single-page checkout speed.

View Specifications

Custom Backend Framework

Laravel (PHP Backend)

We develop enterprise-grade Laravel payment modules. Whether your app is built on Laravel Jetstream, Breeze, Filament, or custom REST APIs, we write dedicated Service Providers, Facades, queued webhook jobs, and robust database transaction locks.

View Specifications