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1import USDCFlow from 0xf1ab99c82dee3526
2import FungibleToken from 0xf233dcee88fe0abe
3import LendingPool from 0x1113980ca45d1d37
4
5transaction(amountDeposit: UFix64) {
6    let tokenVault: auth(FungibleToken.Withdraw) &USDCFlow.Vault
7    let supplierAddress: Address
8
9    prepare(signer: auth(Storage, Capabilities) &Account) {
10        let storagePath = /storage/usdcFlowVault
11        let receiverPath = /public/usdcFlowReceiver
12        let balancePath = /public/usdcFlowMetadata
13        if (signer.storage.borrow<&USDCFlow.Vault>(from: storagePath) == nil) {
14            signer.storage.save(<-USDCFlow.createEmptyVault(vaultType: Type<@USDCFlow.Vault>()), to: storagePath)
15            signer.capabilities.publish(signer.capabilities.storage.issue<&{FungibleToken.Receiver}>(storagePath), at: receiverPath)
16            signer.capabilities.publish(signer.capabilities.storage.issue<&{FungibleToken.Balance}>(storagePath), at: balancePath)
17        }
18        self.tokenVault = signer.storage.borrow<auth(FungibleToken.Withdraw) &USDCFlow.Vault>(from: storagePath)
19            ?? panic("cannot borrow auth(FT.Withdraw) reference to USDCFlow Vault")
20        self.supplierAddress = signer.address
21    }
22
23    execute {
24        let inUnderlyingVault <- self.tokenVault.withdraw(amount: amountDeposit)
25        LendingPool.supply(supplierAddr: self.supplierAddress, inUnderlyingVault: <-inUnderlyingVault)
26    }
27}