unity-iap

A quick implementation of Unity IAP service.

Requirements

1. Enabled Unity IAP services.
2. "In App Purchasing" package must be version 4.5.1 or higher.
3. Have a Play Console developer account if building for Android and Play Store Connect developer account if iOS.

How To Use

1. Import package into your project.
2. Setup license key. (optional, only for targetting Android)

• Go to https://play.google.com/apps/publish/ and choose your project.
• Go to Monetizing/Monetization setup and get Google license key.
• Go to https://dashboard.unity3d.com/ , choose your project, select Analytics/Analytics setting and then paste the Google license key.
• In Unity, go to Services/In-App Purchasing/Receipt Validation Obfuscator and paste the Google license key, and obfuscate it.

3. Setup the product catalog

• In Unity, go to Services/In-App Purchasing/IAP Catalog
• Enter your iap product informations.
• (Only for Play Console) Export to CSV and go to

4. Setup Play Console (optional)

• If you have trouble importing IAP Catalog CSV using USD. You can setup pricing template as a workaround.
• Go to Play Console/Princing Template and setup your templates. (Note the template ID, you'll need that later)
• Back to Unity IAP Catalog, change product Google Configuration to Pricing, clear the fixed Price and paste the template ID.
• Export the catalog to CSV and import to Play Console again.

5. Setup App Store Connect (optional)

• App Store stopped supporting importing from IAP Catalog, so you have to manual create the product one by one on the store.

6. Usage:

• Register to OnInitialized and call Initialize() at the beginning.
• In your code, call "IAPManager.Instance.BuyProduct(string productId)" to buy the product with id "productId" (which is listed in product catalog).
• Register "OnPurchase" event to get notifies about the purchase.
• Register "OnRestore" event to get notification about the restore request.
• Call "...RestoreProducts()" to restore users' purchased non-consumable products. (The events will go to OnPurchase).
• Call "GetProductPriceById(string productId)" to get the price. (E.g $10)
• Call "GetProductValueById(string productId)" to get the value. (E.g 10k Coins)
• Call "GetProductById(string productId)" to get the product information. (Included these two from above)

Note

• Call "Initialize()" to re-initialize the service if starting the game without internet connection. (Register to "OnInitialized" to know what-is-going-on to the service).

Troubleshooting

• Google Rejection's Error: "We've detected this app uses an unsupported version of Play billing. Please upgrade to Billing Library version 4 or newer to publish this app." => Please update the Unity IAP package to 4.4.1 or newer.

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It's not that quick, eh? Happy developing.