When to Use
- Add analytics tracking to all responses
- Apply security headers and CORS policies
- Insert personalized content and recommendations
- Apply dynamic pricing and discounts
What They Do
- Receive both request and response data
- Modify response headers, body, and status
- Add computed fields and enrichments
- Transform data before sending to users
How Response Functions Work
- Request function completes and generates initial response
- Response function automatically triggered with request and response data
- Function modifies response headers, body, or status as needed
- Enhanced response sent to user with improvements
Response Function Examples
Add tracking pixels and analytics data to responses:Sample URL:
Enhanced Headers:What Ollie Hub adds:
API Endpoint
π See Hub Enhancements
π See Hub Enhancements
Enhanced Response
- β Comprehensive user behavior tracking
- β Analytics data injection for BI tools
- β Request correlation for debugging
- β User segmentation for personalization
- β Conversion funnel tracking
- β Session analytics
Best Practices
Fail Gracefully
Always return the original response if your enhancement fails. Donβt break the user experience.
Keep It Fast
Response functions should be lightweight. Heavy processing can slow down responses.
Be Selective
Not every response needs enhancement. Use conditional logic to enhance only when needed.
Log Errors
Log enhancement errors for debugging, but donβt let them affect the userβs response.
Next Steps
Best Practices
Implementation patterns for response enhancement
Request Functions
Learn to handle incoming requests that trigger responses
Task Functions
Automate workflows with scheduled functions
Pro Tip: Response functions are perfect for adding cross-cutting concerns like analytics, security, and personalization without modifying your core business logic. Check out our Best Practices guide for implementation patterns.