import FlowToken from 0x1654653399040a61 import FungibleToken from 0xf233dcee88fe0abe import LendingPool from 0x7492e2f9b4acea9a import LendingComptroller from 0xf80cb737bfe7c792 import LendingConfig from 0x2df970b6cdee5735 import LendingInterfaces from 0x2df970b6cdee5735 transaction(amountUnderlyingToRedeem: UFix64) { let flowTokenVault: &FlowToken.Vault let userCertificateCap: Capability<&{LendingInterfaces.IdentityCertificate}> prepare(signer: AuthAccount) { let flowTokenStoragePath = /storage/flowTokenVault if (signer.borrow<&FlowToken.Vault>(from: flowTokenStoragePath) == nil) { signer.save(<-FlowToken.createEmptyVault(), to: flowTokenStoragePath) signer.link<&FlowToken.Vault{FungibleToken.Receiver}>(/public/flowTokenReceiver, target: flowTokenStoragePath) signer.link<&FlowToken.Vault{FungibleToken.Balance}>(/public/flowTokenBalance, target: flowTokenStoragePath) } self.flowTokenVault = signer.borrow<&FlowToken.Vault>(from: flowTokenStoragePath) ?? panic("cannot borrow reference to FlowToken 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.flowTokenVault.deposit(from: <-redeemedVault) } }

Transaction