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Tarek M. Ben Lechhab

PROFILE

Tarek M. Ben Lechhab

Over a three-month period, this developer focused on resolving complex bugs in the RevenueCat/purchases-js and purchases-android repositories, enhancing reliability and user experience. Using TypeScript, Kotlin, and unit testing, they addressed issues such as inflated subscription discounts by refining filtering logic and aligning price calculations with other SDKs. They improved fallback mechanisms for offering selection, ensuring robust handling of missing or null placement mappings and expanding regression test coverage. On purchases-android, they fixed Paywalls V2 icon pre-download URL handling, synchronizing URL construction to prevent 403 errors. Their work emphasized thorough testing, cross-platform consistency, and production validation for monetization features.

Overall Statistics

Feature vs Bugs

0%Features

Repository Contributions

3Total
Bugs
3
Commits
3
Features
0
Lines of code
285
Activity Months3

Work History

July 2026

1 Commits

Jul 1, 2026

July 2026: RevenueCat purchases-android — Paywalls V2 pre-download URL path handling bug fixed; aligned pre-download URLs with render-time paths to fix 403 errors. Implemented appendEncodedPath-based URL construction, updated unit test fixtures, and validated against production CDN. Result: reliable icon pre-warm, reduced fleet-wide errors, and a clean test suite.

May 2026

1 Commits

May 1, 2026

May 2026 monthly summary for RevenueCat/purchases-js: Delivered a robust fallback mechanism for Placement-based offering selection, addressing a critical edge case where missing or null offering_ids_by_placement could result in null returns. The fix defaults the mapping to an empty object when omitted, enabling the existing fallback_offering_id logic and aligning JS behavior with iOS and Android implementations. The change preserves semantics for explicit nulls and missing maps while preventing production null results. Added regression tests and fixtures (including gets fallback offering when offering_ids_by_placement is omitted and appUserIdWithPlacementsFallbackOnly) to verify the updated behavior; all tests pass and typecheck/lint checks are clean. This work strengthens monetization reliability and user experience across edge cases.

March 2026

1 Commits

Mar 1, 2026

March 2026 monthly summary: RevenueCat/purchases-js delivered a critical fix to the relative discount calculation by excluding non-subscription packages from the highest-priced comparison, preventing inflated discounts for subscriptions. Implemented a filtering step to consider only subscription packages when determining the baseline monthly price, consistent with other SDKs where pricePerMonth returns nil for non-subscriptions. Added tests for mixed offerings (subscriptions + non-subscriptions) and for exclusive non-subscription scenarios to ensure correctness across edge cases. The change improves pricing accuracy, reduces customer confusion, and lowers support risk. The work is supported by the commit 2342541ab8c9d14fdb85121f74612301c956102b.

Activity

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Quality Metrics

Correctness100.0%
Maintainability93.4%
Architecture86.6%
Performance86.6%
AI Usage60.0%

Skills & Technologies

Programming Languages

TypeScript

Technical Skills

Android DevelopmentKotlinTypeScriptUnit Testingfull stack developmenttesting

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

RevenueCat/purchases-js

Mar 2026 May 2026
2 Months active

Languages Used

TypeScript

Technical Skills

TypeScriptfull stack developmenttesting

RevenueCat/purchases-android

Jul 2026 Jul 2026
1 Month active

Languages Used

No languages

Technical Skills

Android DevelopmentKotlinUnit Testing