import FiatToken from 0xb19436aae4d94622 import FungibleToken from 0xf233dcee88fe0abe import LendingPool from 0x8334275bda13b2be import LendingComptroller from 0xf80cb737bfe7c792 import LendingConfig from 0x2df970b6cdee5735 import LendingInterfaces from 0x2df970b6cdee5735 transaction(amountUnderlyingToRedeem: UFix64) { let USDCVault: &FiatToken.Vault let userCertificateCap: Capability<&{LendingInterfaces.IdentityCertificate}> prepare(signer: AuthAccount) { let usdcStoragePath = /storage/USDCVault if (signer.borrow<&FiatToken.Vault>(from: usdcStoragePath) == nil) { signer.save(<-FiatToken.createEmptyVault(), to: usdcStoragePath) signer.link<&FiatToken.Vault{FungibleToken.Receiver}>(/public/USDCVaultReceiver, target: usdcStoragePath) signer.link<&FiatToken.Vault{FungibleToken.Balance}>(/public/USDCVaultBalance, target: usdcStoragePath) } self.USDCVault = signer.borrow<&FiatToken.Vault>(from: usdcStoragePath) ?? panic("cannot borrow reference to USDC Vault") // Get protocol-issued user certificate if (signer.borrow<&{LendingInterfaces.IdentityCertificate}>(from: LendingConfig.UserCertificateStoragePath) == nil) { destroy <-signer.load<@AnyResource>(from: LendingConfig.UserCertificateStoragePath) let userCertificate <- LendingComptroller.IssueUserCertificate() signer.save(<-userCertificate, to: LendingConfig.UserCertificateStoragePath) signer.link<&{LendingInterfaces.IdentityCertificate}>(LendingConfig.UserCertificatePrivatePath, target: LendingConfig.UserCertificateStoragePath) } if (signer.getCapability<&{LendingInterfaces.IdentityCertificate}>(LendingConfig.UserCertificatePrivatePath).check()==false) { signer.link<&{LendingInterfaces.IdentityCertificate}>(LendingConfig.UserCertificatePrivatePath, target: LendingConfig.UserCertificateStoragePath) } self.userCertificateCap = signer.getCapability<&{LendingInterfaces.IdentityCertificate}>(LendingConfig.UserCertificatePrivatePath) } execute { let redeemedVault <- LendingPool.redeemUnderlying(userCertificateCap: self.userCertificateCap, numUnderlyingToRedeem: amountUnderlyingToRedeem) self.USDCVault.deposit(from: <-redeemedVault) } }

Transaction