Billing-Suspend

BillingHelper is an helper to easy use coroutines with the BillingClient. It also includes a client-side token validation, if there is not server available

Dependency

Add the library to your module build.gradle

dependencies {
    implementation 'de.charlex.billing:billing-suspend:4.0.2'
}

Features

• Suspendable Billing Access
• Client-Side Token Validation

Usage BillingHelper

val billingHelper: BillingHelper = BillingHelper(activity) {
    enablePendingPurchases()
}

val purchases = billingHelper.queryPurchases(BillingClient.SkuType.SUBS)

purchases?.forEach {
    if (it.isAcknowledged.not()) {
        billingHelper.acknowledgePurchase(it.purchaseToken)
    }
}

billingHelper.purchase(sku = arrayOf("productId_here"), type = BillingClient.SkuType.SUBS)

Usage BillingSecurity (Not recommended. Use Server-Side Validation instead)

billingHelper.purchase(sku = arrayOf("productId_here"), type = BillingClient.SkuType.SUBS) { purchase ->
    BillingSecurity.verifyPurchase(PUBLIC_BASE64_RSA_KEY, purchase.originalJson, purchase.signature)
}

That's it!

License

Copyright 2020 Alexander Karkossa

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.