Custom & Commercial
MedusaJS Plugin Development
We've developed numerous plugins of varying complexity—from simple payment integrations to complex B2B functionality and multi-tenant architectures. Our plugins leverage MedusaJS's subscriber pattern, service layer, and admin API to deliver seamless, maintainable solutions.
MedusaJS's plugin architecture provides incredible flexibility. We build plugins that extend your store's capabilities while maintaining clean separation of concerns and upgrade compatibility.
Proprietary Plugin Development
Custom plugins built exclusively for your business
We develop custom MedusaJS plugins tailored to your specific business requirements. Whether it's complex pricing logic, unique workflow automation, specialized integrations, or B2B features, we architect plugins that solve your exact needs without unnecessary bloat or feature overlap.
Benefits
Examples
Commercial Plugin Development
Build and monetize plugins for the MedusaJS community
Planning to build a commercial plugin for the MedusaJS ecosystem? We develop high-quality, well-documented plugins that meet community standards and provide real value. From architecture and development to documentation and marketing assets, we help you launch successful commercial plugins.
Benefits
Examples
Our Plugin Development Approach
We follow MedusaJS best practices to ensure your plugins are maintainable, performant, and future-proof.
Service-Oriented Architecture
Plugins are built using MedusaJS's service pattern, ensuring clean dependency injection and testability
Event-Driven Design
Leverage MedusaJS's event bus for loose coupling and reactive functionality
Database Migrations
Proper migration scripts ensure smooth installation and upgrades
TypeScript Best Practices
Fully typed plugins with proper interfaces and type safety
Admin UI Integration
Seamless admin dashboard widgets and routes when needed
Comprehensive Testing
Unit tests, integration tests, and end-to-end testing coverage
Plugin Customization
Extend and adapt existing plugins to your needs
We customize official MedusaJS plugins and community plugins when they cover 80% of your requirements but need that extra 20% to perfectly fit your business. Rather than building from scratch, we extend existing plugins while maintaining upgrade compatibility where possible.
How We Customize Plugins
Our customization approach balances your immediate needs with long-term maintainability.
Plugin Extension
We extend plugins through MedusaJS's plugin inheritance, adding functionality without modifying the original codebase
Best for: Adding new features or integrations to existing plugins
Service Decoration
Override specific plugin services to modify behavior while preserving the rest of the functionality
Best for: Tweaking business logic or data processing
Event Subscribers
Hook into plugin events to add custom workflows without touching plugin code
Best for: Adding parallel processes or notifications
Configuration Extension
Extend plugin configuration options to support additional use cases
Best for: Adding flexibility and customization options
Fork and Customize
When deep changes are needed, we fork the plugin and maintain a custom version
Best for: Significant architectural changes or conflicting requirements
Common Plugin Customizations
Payment Plugins
Shipping Plugins
Search Plugins (Algolia, Meilisearch)
CMS Plugins
Plugin Compatibility
Resolve conflicts and ensure plugins work together
With MedusaJS's growing plugin ecosystem, it's possible for plugins to conflict—especially when they modify the same services, entities, or API routes. We resolve these conflicts and ensure your plugins coexist harmoniously.
Common Plugin Conflicts We Resolve
Multiple plugins decorating the same service can cause unexpected behavior
Plugins extending the same entity or creating conflicting migrations
Plugins registering the same custom endpoints
Multiple subscribers handling the same event in conflicting ways
Plugins requiring different versions of the same dependency
Plugins registering overlapping admin routes or widgets
Plugin Refactoring
Improve performance, maintainability, and code quality
Whether it's a community plugin with technical debt or a custom plugin that's grown organically, we refactor plugins to improve performance, security, maintainability, and reliability—all while preserving functionality.
Refactoring Process
1. Analysis & Assessment
Comprehensive code review identifying issues, performance bottlenecks, and improvement opportunities
2. Strategy Development
Create refactoring plan prioritizing high-impact improvements while minimizing risk
3. Test Suite Creation
Build comprehensive tests to ensure functionality is preserved during refactoring
4. Incremental Refactoring
Systematically improve code in small, tested increments to reduce risk
5. Performance Validation
Benchmark performance improvements and validate enhanced functionality
6. Documentation Update
Update all documentation to reflect improved architecture and usage patterns
Convert Custom Code to Plugins
Extract custom functionality into reusable, maintainable plugins
Have custom functionality scattered throughout your MedusaJS codebase? We extract and package it into proper plugins, making your code more maintainable, testable, and reusable. This modular approach simplifies future updates and makes functionality portable.
Why Convert to Plugins?
Maintainability
Isolated functionality is easier to understand, test, and modify without affecting other parts of your store
Reusability
Use the same plugin across multiple stores or projects without code duplication
Upgrade Safety
Plugins isolate custom code from core MedusaJS updates, reducing upgrade complexity
Team Collaboration
Clear boundaries make it easier for multiple developers to work without conflicts
Testing
Plugins can be tested in isolation, improving test coverage and reliability
Documentation
Self-contained plugins are easier to document and onboard new team members
Conversion Process
Discovery
- •Identify custom functionality throughout codebase
- •Analyze dependencies and relationships
- •Group related functionality
- •Assess complexity and effort
- •Plan plugin architecture
Plugin Architecture
- •Design plugin structure
- •Define service interfaces
- •Plan database migrations
- •Design configuration options
- •Define public APIs
Code Extraction
- •Extract code into plugin structure
- •Implement proper service patterns
- •Create database migrations
- •Add configuration management
- •Implement event subscribers
Testing & Validation
- •Create test suite
- •Validate functionality preservation
- •Performance testing
- •Integration testing
- •Edge case validation
Integration
- •Install plugin in main application
- •Remove old custom code
- •Update dependencies
- •Validate in staging environment
- •Production deployment
Documentation
- •Write plugin documentation
- •Create configuration guide
- •Document API endpoints
- •Provide usage examples
- •Create troubleshooting guide
Common Conversions
Custom pricing logic → Pricing Plugin
Complex discount rules → Promotions Plugin
Custom workflow automation → Workflow Plugin
Specialized inventory management → Inventory Plugin
Custom admin views → Admin Extension Plugin
Integration code → Integration Plugin
Custom API endpoints → API Extension Plugin
Business logic services → Business Logic Plugin
Plugin Merge & Extension
Combine or extend plugin functionality
Need functionality from multiple plugins combined into one? Or want to add missing features to an existing plugin? We merge plugin capabilities or extend existing plugins with new features while maintaining clean architecture and performance.
When to Merge or Extend
Conflicting Plugins
Problem: Two plugins you need conflict with each other
Solution: Merge their functionality into a single unified plugin that eliminates conflicts
Feature Gap
Problem: A plugin has 90% of what you need but is missing critical features
Solution: Extend the plugin with additional functionality rather than building from scratch
Redundant Functionality
Problem: Multiple plugins providing overlapping features with poor integration
Solution: Consolidate into a single plugin with cohesive functionality
Performance Issues
Problem: Multiple plugins performing similar operations wastefully
Solution: Merge operations into optimized single plugin reducing overhead
Our Merge & Extension Approaches
Combine functionality from multiple plugins into a single unified plugin
Process:
- 1.Analyze both plugins' architectures
- 2.Design unified plugin structure
- 3.Merge database schemas
- 4.Combine and deduplicate services
- 5.Create unified admin UI
- 6.Comprehensive testing of merged functionality
Add new capabilities to existing plugins without forking
Process:
- 1.Analyze plugin architecture and extension points
- 2.Design feature additions
- 3.Implement as plugin decorators or extensions
- 4.Maintain upgrade compatibility
- 5.Add configuration for new features
- 6.Document extended functionality
Create intermediary plugins that connect and coordinate other plugins
Process:
- 1.Identify integration points
- 2.Design bridge architecture
- 3.Implement coordination logic
- 4.Handle data transformation
- 5.Provide unified API
- 6.Monitor and log interactions
Admin UI Development
Custom admin interfaces for your plugins
Powerful functionality needs intuitive management interfaces. We develop custom admin UI widgets, routes, and dashboards that integrate seamlessly with MedusaJS admin, making complex plugins easy to configure and manage.
Admin UI Capabilities
Admin UI Design Principles
Consistency
Match MedusaJS admin design patterns for familiar, intuitive interfaces
Efficiency
Optimize workflows for admin users with batch operations and shortcuts
Clarity
Clear labels, helpful tooltips, and intuitive navigation
Responsiveness
Fast-loading interfaces with optimistic updates and proper loading states
Validation
Client-side validation with clear error messages and guidance
Accessibility
Keyboard navigation, screen reader support, and WCAG compliance
Technologies We Use
React for UI components
MedusaJS Admin UI framework
Tailwind CSS for styling
React Query for data fetching
React Hook Form for form management
React Table for data tables
Recharts for data visualization
TypeScript for type safety
Plugin Migration
Upgrade and port plugins across MedusaJS versions
MedusaJS evolves rapidly. We migrate plugins to newer MedusaJS versions, ensuring compatibility with the latest features and APIs while preserving functionality and data.
Plugin Audit & Consultation
Not sure whether to use an existing plugin, customize one, or build custom? Our plugin audit service helps you make informed decisions by analyzing your requirements, evaluating available options, and recommending the optimal approach.
Strategic Recommendations
Use Existing Plugin
Customize Existing Plugin
Build Custom Plugin
Why Choose Askan Tech for
MedusaJS Plugin Development
Partner with MedusaJS specialists who deliver high-quality, maintainable plugins that extend your commerce capabilities without compromising performance or upgrade paths.