import FungibleToken from 0xf233dcee88fe0abe import NonFungibleToken from 0x1d7e57aa55817448 import DapperUtilityCoin from 0xead892083b3e2c6c import NFTStorefront from 0x4eb8a10cb9f87357 import MetadataViews from 0x1d7e57aa55817448 import SturdyItems from 0x427ceada271aa0b1 transaction(saleItemID: UInt64, saleItemPrice: UFix64) { let sellerPaymentReceiver: Capability<&{FungibleToken.Receiver}> let nftProvider: Capability<&SturdyItems.Collection{NonFungibleToken.Provider, NonFungibleToken.CollectionPublic}> let storefront: &NFTStorefront.Storefront let nft: &SturdyItems.NFT prepare(seller: AuthAccount) { // If the account doesn't already have a storefront, create one and add it to the account if seller.borrow<&NFTStorefront.Storefront>(from: NFTStorefront.StorefrontStoragePath) == nil { let newStorefront <- NFTStorefront.createStorefront() as! @NFTStorefront.Storefront seller.save(<-newStorefront, to: NFTStorefront.StorefrontStoragePath) seller.link<&NFTStorefront.Storefront{NFTStorefront.StorefrontPublic}>( NFTStorefront.StorefrontPublicPath, target: NFTStorefront.StorefrontStoragePath ) } // Get a reference to the receiver that will receive the fungible tokens if the sale executes. // Note that the sales receiver aka MerchantAddress should be an account owned by Dapper or an end-user Dapper Wallet account address. self.sellerPaymentReceiver = getAccount(seller.address).getCapability<&{FungibleToken.Receiver}>(/public/dapperUtilityCoinReceiver) assert(self.sellerPaymentReceiver.borrow() != nil, message: "Missing or mis-typed DapperUtilityCoin receiver") // If the user does not have their collection linked to their account, link it. let nftProviderPrivatePath = /private/SturdyItemsCollectionProviderForNFTStorefront let hasLinkedCollection = seller.getCapability<&SturdyItems.Collection{NonFungibleToken.Provider, NonFungibleToken.CollectionPublic}>( nftProviderPrivatePath )!.check() if !hasLinkedCollection { seller.link<&SturdyItems.Collection{NonFungibleToken.Provider, NonFungibleToken.CollectionPublic}>( nftProviderPrivatePath, target: SturdyItems.CollectionStoragePath ) } // Get a capability to access the user's NFT collection. self.nftProvider = seller.getCapability<&SturdyItems.Collection{NonFungibleToken.Provider, NonFungibleToken.CollectionPublic}>( nftProviderPrivatePath )! assert(self.nftProvider.borrow() != nil, message: "Missing or mis-typed collection provider") // Get a reference to the user's NFT storefront self.storefront = seller.borrow<&NFTStorefront.Storefront>(from: NFTStorefront.StorefrontStoragePath) ?? panic("Missing or mis-typed NFTStorefront Storefront") // Make sure this NFT is not already listed for sale in this storefront. let existingOffers = self.storefront.getListingIDs() if existingOffers.length > 0 { for listingResourceID in existingOffers { let listing: &NFTStorefront.Listing{NFTStorefront.ListingPublic}? = self.storefront.borrowListing(listingResourceID: listingResourceID) if listing != nil && listing!.getDetails().nftID == saleItemID && listing!.getDetails().nftType == Type<@SturdyItems.NFT>(){ self.storefront.removeListing(listingResourceID: listingResourceID) } } } let collection = seller.getCapability(SturdyItems.CollectionPublicPath) .borrow<&{SturdyItems.SturdyItemsCollectionPublic}>() ?? panic("Could not borrow a reference to the collection") self.nft = collection.borrowSturdyItem(id: saleItemID) ?? panic("Could not borrow a reference to the NFT") } execute { let saleCuts: [NFTStorefront.SaleCut] = [] let royaltyMetadataView = MetadataViews.getRoyalties(self.nft)! var totalRoyaltyCut = 0.0 for royalty in royaltyMetadataView.getRoyalties() { saleCuts.append( NFTStorefront.SaleCut( receiver: royalty.receiver, amount: saleItemPrice * royalty.cut ) ) totalRoyaltyCut = totalRoyaltyCut + royalty.cut } let sellerCut = saleItemPrice * (1.0 - totalRoyaltyCut) saleCuts.append( NFTStorefront.SaleCut( receiver: self.sellerPaymentReceiver, amount: sellerCut ) ) self.storefront.createListing( nftProviderCapability: self.nftProvider, nftType: Type<@SturdyItems.NFT>(), nftID: saleItemID, salePaymentVaultType: Type<@DapperUtilityCoin.Vault>(), saleCuts: saleCuts ) } }

Transaction