import FlowToken from 0x1654653399040a61 import FungibleToken from 0xf233dcee88fe0abe import NonFungibleToken from 0x1d7e57aa55817448 import NFTCatalog from 0x49a7cda3a1eecc29 import NFTStorefrontV2 from 0x4eb8a10cb9f87357 import MetadataViews from 0x1d7e57aa55817448 import HeroesOfTheFlow from 0x1dc37ab51a54d83f transaction(storefrontAddress: Address, listingResourceID: UInt64, commissionRecipient: Address, collectionIdentifier: String) { let paymentVault: @FungibleToken.Vault let collection: &AnyResource{NonFungibleToken.CollectionPublic} let storefront: &NFTStorefrontV2.Storefront{NFTStorefrontV2.StorefrontPublic} let listing: &NFTStorefrontV2.Listing{NFTStorefrontV2.ListingPublic} let commissionRecipientCap: Capability<&{FungibleToken.Receiver}> prepare(acct: AuthAccount) { let value = NFTCatalog.getCatalogEntry(collectionIdentifier: collectionIdentifier) ?? panic("Collection does not exist in the NFT Catalog.") self.storefront = getAccount(storefrontAddress) .getCapability<&NFTStorefrontV2.Storefront{NFTStorefrontV2.StorefrontPublic}>( NFTStorefrontV2.StorefrontPublicPath )! .borrow() ?? panic("Could not borrow Storefront from provided address") self.listing = self.storefront.borrowListing(listingResourceID: listingResourceID) ?? panic("No Offer with that ID in Storefront") let nftRef = self.listing.borrowNFT() ?? panic("nft not found") let price = self.listing.getDetails().salePrice let mainVault = acct.borrow<&FlowToken.Vault>(from: /storage/flowTokenVault) ?? panic("Cannot borrow FlowToken vault from acct storage") self.paymentVault <- mainVault.withdraw(amount: price) let collectionCap = acct.getCapability<&HeroesOfTheFlow.Collection{NonFungibleToken.CollectionPublic, NonFungibleToken.Receiver, HeroesOfTheFlow.CollectionPublic, MetadataViews.ResolverCollection}>(value.collectionData.publicPath) if !collectionCap.check() { if acct.borrow<&AnyResource>(from: value.collectionData.storagePath) == nil { // set up the NFT collection if it doesn't exist let collectionData = nftRef.resolveView(Type())! as! MetadataViews.NFTCollectionData acct.save(<- collectionData.createEmptyCollection(), to: value.collectionData.storagePath) } acct.unlink(value.collectionData.publicPath) acct.link<&HeroesOfTheFlow.Collection{NonFungibleToken.CollectionPublic, NonFungibleToken.Receiver, HeroesOfTheFlow.CollectionPublic, MetadataViews.ResolverCollection}>(value.collectionData.publicPath, target: value.collectionData.storagePath) } self.collection = collectionCap.borrow() ?? panic("Cannot borrow NFT collection receiver from account") self.commissionRecipientCap = getAccount(commissionRecipient).getCapability<&{FungibleToken.Receiver}>(/public/flowTokenReceiver) assert(self.commissionRecipientCap.check(), message: "Commission Recipient doesn't have FLOW receiving capability") } execute { let item <- self.listing.purchase( payment: <-self.paymentVault, commissionRecipient: self.commissionRecipientCap ) self.collection.deposit(token: <-item) } }

Transaction