Reading and Validating In App Purchase Receipt Locally

platform :ios, '9.0'

target 'YOUR_TARGET' do
    use_frameworks!

    pod 'TPInAppReceipt'
end

$ pod install

.package(url: "https://github.com/tikhop/TPInAppReceipt.git", .upToNextMajor(from: "3.0.0"))

swift package update

do {
  /// Initialize receipt
  let receipt = try InAppReceipt.localReceipt() 
  
  // let receiptData: Data = ...
  // let receipt = try InAppReceipt.receipt(from: receiptData)
  
} catch {
  print(error)
}

InAppReceipt.refresh { (error) in
  if let err = error
  {
    print(err)
  }else{
    initializeReceipt()
  }
}

/// Base64 Encoded Receipt
let base64Receipt = receipt.base64
  
/// Initialize receipt
let receipt = try! InAppReceipt.localReceipt() 

/// Check whether receipt contains any purchases
let hasPurchases = receipt.hasPurchases

/// All auto renewable `InAppPurchase`s,
let purchases: [InAppPurchase] = receipt.autoRenewablePurchases 

/// all ACTIVE auto renewable `InAppPurchase`s,
let activePurchases: [InAppPurchase] = receipt.activeAutoRenewableSubscriptionPurchases 

// Retrieve Original TransactionIdentifier for Product Name
receipt.originalTransactionIdentifier(ofProductIdentifier: subscriptionName)

// Retrieve Active Auto Renewable Subscription's Purchases for Product Name and Specific Date
receipt.activeAutoRenewableSubscriptionPurchases(ofProductIdentifier: subscriptionName, forDate: Date())

// Retrieve All Purchases for Product Name
receipt.purchases(ofProductIdentifier: subscriptionName)

/// Verify all at once

do {
    try r.verify()
} catch IARError.validationFailed(reason: .hashValidation) 
{
    // Do smth
} catch IARError.validationFailed(reason: .bundleIdentifierVefirication) 
{
    // Do smth
} catch IARError.validationFailed(reason: .signatureValidation) 
{
    // Do smth
} catch {
    // Do smth
}

/// Verify hash 
try? r.verifyHash()

/// Verify bundle identifier and version
try? r.verifyBundleIdentifierAndVersion()

/// Verify signature
try? r.verifySignature()