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Refactor payment processing pipeline
42/100 Medium
42/100 Medium
Files Changed
22
Additions
+1450
Deletions
-890
Author Type
Human
Risk analysis complete.Score: 42/100
GitHub
Summary
Large refactor of payment pipeline — well-structured but significant blast radius with 22 files changed.
Model: claude-sonnet-4-20250514Duration: 14500msTokens: 5120
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Risk Scores
Overall42/100
Complexity55/100
Security30/100
Blast Radius65/100
Test Coverage35/100
Breaking Change25/100
File-Level Risk
| File | Risk | Category | Details |
|---|---|---|---|
src/services/payment-gateway.ts | 60 | complexity | New abstract gateway interface with 4 implementations |
src/services/payment-processor.ts | 55 | blast Radius | Core processor rewritten — affects all payment flows |
prisma/migrations/20260320_add_transactions.sql | 45 | breaking Change | Database migration adds columns and indexes |
src/lib/circuit-breaker.ts | 40 | complexity | New circuit breaker with state machine logic |
blast Radius
65/100Findings
- • 22 files changed across payment processing pipeline
- • Shared PaymentService interface modified — affects 8 downstream consumers
- • Database migration adds 3 new columns to transactions table
Suggestions
- → Split into smaller PRs per component (gateway, processor, reconciler)
- → Add feature flag to gradually migrate traffic to new pipeline
complexity
55/100Findings
- • New abstract PaymentGateway interface with 4 concrete implementations
- • Strategy pattern replaces conditional logic — good design improvement
- • Complex retry logic with exponential backoff and circuit breaker
Suggestions
- → Document the strategy pattern for team onboarding
- → Consider extracting circuit breaker into shared utility
test Coverage
35/100Findings
- • Integration tests cover happy paths for all 4 gateways
- • Missing error case tests for circuit breaker transitions
- • No load testing for concurrent payment processing
Suggestions
- → Add chaos testing for gateway failure scenarios
- → Add benchmark tests for throughput under concurrent load