Support for Purchase verification?

[BlacKCaT27]

There's no where in the API to provide the applications public key, nor is there any mechanism to let the caller verify a purchase against said key. This means the application has to implicitly trust any purchase receipt coming from ReactiveBilling, or continue to use portions of googles IabHelper to do the verification.

Would be great to have an additional observable that let you asynchronously verify a purchase.

[lukaspili]

Are you talking about this? https://developer.android.com/google/play/billing/billing_best_practices.html#payload