feat: Implement A/B Testing Framework for Campaign Variants (#624)#660
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joelpeace48-cell merged 2 commits intoJun 18, 2026
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…tudioLab#624) - Add database schema for campaign variants, assignments, and results tracking - Implement deterministic hash-based variant assignment with traffic weights - Add comprehensive API endpoints for variant management and analytics - Include statistical significance testing (z-test for proportions) - Support sticky assignments to ensure user consistency - Add validation schemas and comprehensive unit tests - Integrate with existing campaign infrastructure and rate limiting - Add detailed documentation and usage examples Key features: - Create/manage campaign variants with traffic weight configuration - Assign users to variants based on configurable traffic splits - Track experiment results and calculate statistical significance - RESTful API under /api/v1/campaigns/:id/variants endpoints - Database migration with proper indexes and foreign key constraints Closes FinesseStudioLab#624
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…work - Add JSDoc type annotations to fix TypeScript errors - Fix validation order in validateTrafficWeights (check individual weights first) - Explicitly spread object properties to satisfy TypeScript type checking - Add missing zScore to return type and early return - All tests now passing (105/105)
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Nice Job @Williams-1604 , all CI passes, feel free to apply to more issues the quality of code is good |
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A/B Testing Framework for Campaign Variants
Implements comprehensive A/B testing infrastructure for Trivela campaigns addressing issue #624.
Features
/api/v1/campaigns/:id/variantsAPI Endpoints
POST /campaigns/:id/variants- Create variantGET /campaigns/:id/variants- List variantsPUT /campaigns/:id/variants/:variantId- Update variantDELETE /campaigns/:id/variants/:variantId- Delete variantPOST /campaigns/:id/variants/assign- Assign user to variantGET /campaigns/:id/variants/assignment/:userId- Get assignmentPOST /campaigns/:id/variants/results- Track resultsGET /campaigns/:id/variants/results/:metric- Get analyticsUsage Example
Create control and test variants, assign users based on traffic weights, track conversion metrics, and analyze results with statistical significance testing.
Technical Details
Files Changed
New: 6 files including migration, repository, service, routes, tests, docs
Modified: 3 files for schema validation and integration
Production-ready implementation with full documentation in IMPLEMENTATION_ISSUE_624.md
Closes #624