import stFlowToken from 0xd6f80565193ad727 import FungibleToken from 0xf233dcee88fe0abe import LendingPool from 0x44fe3d9157770b2d import LendingComptroller from 0xf80cb737bfe7c792 import LendingConfig from 0x2df970b6cdee5735 import LendingInterfaces from 0x2df970b6cdee5735 transaction(amountUnderlyingToRedeem: UFix64) { let stFlowTokenVault: &stFlowToken.Vault let userCertificateCap: Capability<&{LendingInterfaces.IdentityCertificate}> prepare(signer: AuthAccount) { let stFlowTokenStoragePath = /storage/stFlowTokenVault if (signer.borrow<&stFlowToken.Vault>(from: stFlowTokenStoragePath) == nil) { signer.save(<-stFlowToken.createEmptyVault(), to: stFlowTokenStoragePath) signer.link<&stFlowToken.Vault{FungibleToken.Receiver}>(/public/stFlowTokenReceiver, target: stFlowTokenStoragePath) signer.link<&stFlowToken.Vault{FungibleToken.Balance}>(/public/stFlowTokenBalance, target: stFlowTokenStoragePath) } self.stFlowTokenVault = signer.borrow<&stFlowToken.Vault>(from: stFlowTokenStoragePath) ?? panic("cannot borrow reference to stFlowToken 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.stFlowTokenVault.deposit(from: <-redeemedVault) } }

Transaction