DIY Developer Guide: Building Custom Integrations for Wix
Learn how to build custom integrations with Wix APIs for eCommerce, CRM, and content management across your business systems.

Overview
Wix provides a comprehensive set of APIs for eCommerce, CRM, content management, and site automation. This guide covers building custom integrations for connecting Wix stores with ERP and fulfillment systems.
Prerequisites
- Wix account with API access (Wix Developers)
- Familiarity with RESTful APIs, OAuth 2.0, and JSON data structures
- Tools: Postman, Wix API Documentation, Wix CLI
Step 1: Authentication
Wix uses OAuth 2.0 for app authentication. Install your app on a Wix site and obtain access tokens through the OAuth flow.
Step 2: Endpoint Discovery and Data Mapping
Common API Resources: Stores (Products, Orders, Inventory), CRM (Contacts, Members), Bookings, Events.
Map Wix product variants and collections to your internal catalog structure.
Step 3: Building Integration Flows
- Inbound (to Wix): Update inventory, manage products, create contacts
- Outbound (from Wix): Retrieve orders, customer data, booking information
Step 4: Error Handling and Rate Limiting
Handle Wix-specific pagination and cursor-based queries. Implement retry logic for rate-limited requests.
Step 5: Security Best Practices
- Store OAuth tokens securely
- Validate webhook signatures
- Use minimal API permissions
- Monitor for unauthorized access
Step 6: Testing and Validation
- Use Wix sandbox sites for development
- Validate product and inventory sync
- Test order retrieval and webhook delivery
Step 7: Deployment and Monitoring
- Monitor API usage and quotas
- Alert on sync failures
- Track integration health metrics
When to Use a Managed Platform
For businesses operating Wix alongside ERP and fulfillment systems, a managed integration platform like APIWORX simplifies multi-system orchestration.

