import AuctionV2, Collectible from 0xf5b0eb433389ac3f import FungibleToken from 0xf233dcee88fe0abe import NonFungibleToken from 0x1d7e57aa55817448 import FUSD from 0x3c5959b568896393 transaction( // auction owner address address: Address, // auction id id: UInt64, // bid amount amount: UFix64 ) { let auctionCollectionRef: &AnyResource{AuctionV2.AuctionCollectionPublic} let collectionCap: Capability<&{Collectible.CollectionPublic}> let vaultCap: Capability<&FUSD.Vault{FungibleToken.Receiver}> let temporaryVault: @FUSD.Vault prepare(acct: AuthAccount) { let auctionOwner = getAccount(address) // get the references to the buyer's Vault and NFT Collection receiver var collectionCap = acct.getCapability<&{Collectible.CollectionPublic}>(Collectible.CollectionPublicPath) // if collection is not created yet we make it. if !collectionCap.check() { // store an empty NFT Collection in account storage acct.save<@NonFungibleToken.Collection>(<- Collectible.createEmptyCollection(), to: Collectible.CollectionStoragePath) // publish a capability to the Collection in storage acct.link<&{Collectible.CollectionPublic}>(Collectible.CollectionPublicPath, target: Collectible.CollectionStoragePath) } self.collectionCap = acct.getCapability<&{Collectible.CollectionPublic}>(Collectible.CollectionPublicPath) self.auctionCollectionRef = auctionOwner.getCapability<&AnyResource{AuctionV2.AuctionCollectionPublic}>(AuctionV2.CollectionPublicPath) .borrow() ?? panic("Could not borrow auction reference") // capability to vault of bidder self.vaultCap = acct.getCapability<&FUSD.Vault{FungibleToken.Receiver}>(/public/fusdReceiver) let vaultRef = acct.borrow<&FUSD.Vault>(from: /storage/fusdVault) ?? panic("Could not borrow owner's Vault reference") // withdraw tokens from the buyer's Vault self.temporaryVault <- vaultRef.withdraw(amount: amount) as! @FUSD.Vault } execute { self.auctionCollectionRef.placeBid(id: id, bidTokens: <- self.temporaryVault, vaultCap: self.vaultCap, collectionCap: self.collectionCap) } }

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