A deep dive into
summary
Pokémon Go hits $2 billion in 811 days to show in‑app billing works; Google Play Billing Library v2.0.3 is the concrete tool and wraps the system service via the BillingClient abstraction. Key implementation details: verify purchase tokens on a backend via the Google Play Developer API, handle consumeAsync and acknowledgePurchase (acknowledge within three days), subscribe to real‑time notifications via Google Cloud Pub/Sub, and expect caching and multi‑device onPurchasesUpdated quirks. Use internal testing or billingX for debug; static SKUs don’t cover subscriptions.
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chapters (18)
- 0:00Introduction and risk aversion
- 1:50In-app payments model
- 5:00Google Play billing fundamentals
- 13:31Library architecture overview
- 18:13Setup process pitfalls
- 20:19Products and subscriptions explained
- 26:16Retrieving product details
- 28:47Purchase history handling
- 30:55Purchase flow and UI
- 31:37Sample code analysis
- 33:23Backend integration necessity
- 34:06Purchase verification methods
- 35:32Consuming purchases
- 37:40Acknowledging purchases
- 38:45Real-time notifications
- 39:50Testing strategies
- 41:36Debugging tools
- 43:22Final thoughts and ethics
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