// Mainnet import FungibleToken from 0xf233dcee88fe0abe import NonFungibleToken from 0x1d7e57aa55817448 import FlowToken from 0x1654653399040a61 import MainStorefrontX1 from 0x66b60643244a7738 import CarClub from 0xf887ece39166906e transaction(storefrontAddress: Address, listingResourceID: UInt64, expectedPrice: UFix64) { // Local references let paymentVault: @{FungibleToken.Vault} let nftCollection: &CarClub.Collection let storefront: &MainStorefrontX1.Storefront let listingRef: &{MainStorefrontX1.ListingPublic} let mainFlowVault: auth(FungibleToken.Withdraw) &FlowToken.Vault let balanceBeforeTransfer: UFix64 prepare(acct: auth(Storage, Capabilities) &Account) { // Step 3: Borrow a reference to the storefront where the listing is located self.storefront = getAccount(storefrontAddress) .capabilities.borrow<&MainStorefrontX1.Storefront>(MainStorefrontX1.StorefrontPublicPath) ?? panic("Could not borrow the storefront reference.") // Borrow a reference to the listing that is being purchased self.listingRef = self.storefront.borrowListing(listingResourceID: listingResourceID) ?? panic("No offer with that ID in Storefront") let price = self.listingRef.getDetails().salePrice // perform check to ensure price presented to the user matches the on-chain price assert(expectedPrice == price, message: "Sale price not expected value") // Step 1: Withdraw the inputted price from the buyer's account self.mainFlowVault = acct.storage.borrow (from: /storage/flowTokenVault) ?? panic("Cannot grab access to buyer's Flow Vault") self.balanceBeforeTransfer = self.mainFlowVault.balance self.paymentVault <- self.mainFlowVault.withdraw(amount: price) // Step 2: Set up the buyer's CarClub collection if not already set up if acct.storage.borrow<&CarClub.Collection>(from: CarClub.CollectionStoragePath) == nil { // Create an empty CarClub Collection if the account doesn't already have one let collection <- CarClub.createEmptyCollection(nftType: Type<@CarClub.NFT>()) acct.storage.save(<-collection, to: CarClub.CollectionStoragePath) // Publish a public capability for the CarClub collection acct.capabilities.publish( acct.capabilities.storage.issue<&{NonFungibleToken.CollectionPublic}>(CarClub.CollectionStoragePath), at: CarClub.CollectionPublicPath ) } // Borrow a reference to the buyer's collection (CarClub Collection) self.nftCollection = acct.storage.borrow<&CarClub.Collection>( from: CarClub.CollectionStoragePath )! } execute { // Step 4: Purchase the listing, transferring payment and the NFTs let nfts <- self.listingRef.purchase( payment: <-self.paymentVault, collection: self.nftCollection ) // Step 5: Return the NFTs to the buyer if necessary (destroy if unused) destroy nfts //And don't forget to recycle self.storefront.cleanup(listingResourceID: listingResourceID) } }

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Transaction

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