iap

iap is a rust library for verifying receipt information for purchases made through the Google Play Store or the Apple App Store.

Current Features

• Validating receipt data received from Unity's IAP plugin to verify subscriptions and if they are valid and not expired
• Helper functions to receive response data from Google/Apple for more granular error handling or validation

Supported Transaction Types

• Subscriptions
• Consumables

Coming Features

• Non-subscription purchase types
• Manual input of data for verification not received through Unity IAP

Usage

For simple validation of Unity IAP receipts

You can receive a PurchaseResponse which will simply tell you if a purchase is valid (and not expired if a subscription) by creating a UnityPurchaseValidator.

```rust use iap::*;

const APPLESECRET: &str = ""; const GOOGLEKEY: &str = "";

[tokio::main]

pub async fn main() -> Result<(), Box> { let validator = UnityPurchaseValidator::default() .setapplesecret(APPLESECRET.tostring()) .setgoogleserviceaccountkey(GOOGLEKEY.tostring())?;

// RECEIPT_INPUT would be the Json string containing the store, transaction id, and payload
// from Unity IAP. ie:
// "{ \"Store\": \"GooglePlay\", \"TransactionID\": \"<Txn ID>\", \"Payload\": \"<Payload>\" }"
let unity_receipt = UnityPurchaseReceipt::from(&std::env::var("RECEIPT_INPUT")?)?;

let response = validator.validate(&unity_receipt).await?;

println!("PurchaseResponse is valid: {}", response.valid);

Ok(())

} ```

If you wanted more granular control and access to the response from the store's endpoint, we provide helper functions to do so.

For the Play Store: ```rust pub async fn validate(receipt: &UnityPurchaseReceipt) -> error::Result { let response = fetchgooglereceipt_data(receipt, "").await?;

// debug or validate on your own with the data in the response
println!("Expiry data: {}", response.expiry_time);

// or just simply validate the response
validate_google_subscription(&response)

} ```

For the App Store: ```rust pub async fn validate(receipt: &UnityPurchaseReceipt) -> error::Result { let response = fetchapplereceipt_data(receipt, "").await?;

// was this purchase made in the production or sandbox environment
println!("Environment: {}", response.environment.clone().unwrap());

Ok(validate_apple_subscription(&response))

} ```