OSLIAPBackend

OSL IAP Client is a comprehensive integration package designed to help developers easily implement server-side purchase verification for Google Play and the Apple App Store.

Built for teams seeking a highly secure verification flow over a vulnerable client-only setup, this package provides runtime scripts, a demo scene, centralized configuration assets, and editor tooling to accelerate your integration testing.

Included Features:

- Unity Client Scripts: Streamlined workflow for secure purchase verification.

- IapSetupConfig Asset: Centralized runtime settings for easy management.

- Demo UI & Sample Scene: Fully functional environment for immediate integration testing (No UGUI required).

- Editor API Tester Window: Validate backend requests directly in the Unity Editor without building to a device.

- Robust Response Handling: Accurately processes Verified, AlreadyProcessed, and VerificationFailed states.

- Anti-Duplication Flow: Strict reward-grant safety logic to prevent duplicate reward exploits.

- Supplemental Backend Source: Complete backend integration reference archive included.

Supported Scenarios:

- Google Play purchase verification.

- Apple App Store purchase verification.

- Strict reward confirmation only after valid server responses.

- Safe handling of already-processed transactions (Idempotency).

- End-to-end testing of the first-success purchase flow directly within Unity.

Notes:

- This package focuses on the Unity-side integration flow and comprehensive documentation.

- The backend integration reference is provided as a supplemental source archive.

- IAP functionality requires the following Unity packages: com.unity.purchasing (IAP v5.0+) and com.unity.services.core.

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Documentation & Support

For comprehensive setup guides, official documentation, and issue tracking, please visit our official GitHub repository:

https://ongsoolabs.github.io/