Data Systems● Active2026

Medusa v2 Payment Orchestrator Plugin

Architected a TypeScript plugin integrating self-hosted payment orchestration into Medusa v2, unifying 50+ payment methods under a single interface.

Overview

E-commerce architectures often face vendor lock-in and fragmented integration logic when managing multiple payment providers. I designed and implemented a TypeScript plugin that integrates a self-hosted payment orchestrator into the Medusa v2 framework. The solution abstracts the complexity of disparate gateway APIs, providing a standardized interface for the full transaction lifecycle: authorization, capture, refunds, and webhook synchronization. By enforcing idempotency and state reconciliation within the plugin, the architecture ensures data sovereignty and rigorous consistency for financial operations. Published as an npm package, this module enables production deployments to scale checkout capabilities across global networks without modifying core application logic.

TypeScriptMedusa.js v2Payment OrchestrationWebhook SynchronizationIdempotency ControlAPI Integration

Highlights

  1. 01

    Published npm package integrating self-hosted orchestration with Medusa v2

  2. 02

    Unifies 50+ payment methods through a single standardized interface

  3. 03

    Full lifecycle support: authorization, capture, refunds, and webhook sync

System Architecture

Checkout Request

Medusa Plugin

Self-Hosted Orchestrator

Gateway A

Gateway B

Gateway N

Webhook Listener

Transaction Store

Payment flow from checkout through the self-hosted orchestrator to multiple gateways with webhook reconciliation.

Questions people ask

How does this plugin handle payment consistency?
It enforces idempotency and state reconciliation to ensure rigorous data sovereignty and financial consistency.
What transaction lifecycle stages are supported?
The module supports the full lifecycle, including authorization, capture, refunds, and webhook synchronization.
Does this solution require modifying core application logic?
No, the published npm package enables scaling checkout capabilities globally without altering the core application.

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© 2026 Abhishek Khaparde • Sovereign AI Ecosystems

Non-Commercial Research
These projects represent my independent, non-commercial academic research at IIT Kanpur. These are distinct from my professional employment. All technical architectures discussed are academic design frameworks and do not represent the proprietary intellectual property, commercial methodologies, or official positions of my employer or any past professional affiliations.