This is documentation for Cadence 1.0, which is no longer actively maintained.
For up-to-date documentation, see the latest version (0.42).
Version: 1.0
7. Marketplace Setup
In this tutorial, we're going to create a marketplace that uses both the fungible
and non-fungible token (NFTs) contracts that we have learned about in previous tutorials.
This page requires you to execute a series of transactions to setup your accounts to complete the Marketplace tutorial.
The next page contains the main content of the tutorial.
When you are done with the tutorial, check out the NFTStorefront repo
for an example of a production ready marketplace that you can use right now on testnet or mainnet!
tip
Open the starter code for this tutorial in the Flow Playground:
This guide will help you quickly get the playground to the state you need to complete the Marketplace tutorial.
The marketplace tutorial uses the Fungible Token and Non-Fungible token contracts
to allow users to buy and sell NFTs with fungible tokens.
The state of the accounts is the same as if you had completed the Fungible Token
and Non-Fungible Token tutorials in the same playground session.
Having your playground in this state is necessary to follow the Composable Smart Contracts: Marketplace tutorial.
Open account 0x01. Make sure the Fungible Token definitions in ExampleToken.cdc from the fungible token tutorial are in this account.
Deploy the ExampleToken code to account 0x01.
Switch to the ExampleNFT contract (Contract 2)
Make sure you have the NFT definitions in ExampleNFT.cdc from the Non-fungible token tutorial in account 0x02.
Deploy the NFT code to account 0x02 by selecting it as the deploying signer.
Run the transaction in Transaction 1. This is the SetupAccount1Transaction.cdc file.
Use account 0x01 as the only signer to set up account 0x01's storage.
SetupAccount1Transaction.cdc
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// SetupAccount1Transaction.cdc
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import ExampleToken from 0x01
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import ExampleNFT from 0x02
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// This transaction sets up account 0x01 for the marketplace tutorial
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// by publishing a Vault reference and creating an empty NFT Collection.
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transaction {
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prepare(acct: AuthAccount) {
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// Create a public Receiver capability to the Vault
log("Created a new empty collection and published a reference")
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}
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}
Run the transaction in Transaction 2. This is the SetupAccount2Transaction.cdc file.
Use account 0x02 as the only signer to set up account 0x02's storage.
SetupAccount2Transaction.cdc
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// SetupAccount2Transaction.cdc
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import ExampleToken from 0x01
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import ExampleNFT from 0x02
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// This transaction adds an empty Vault to account 0x02
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// and mints an NFT with id=1 that is deposited into
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// the NFT collection on account 0x01.
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transaction {
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// Private reference to this account's minter resource
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let minterRef: &ExampleNFT.NFTMinter
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prepare(acct: AuthAccount) {
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// create a new vault instance with an initial balance of 30
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let vaultA <- ExampleToken.createEmptyVault()
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// Store the vault in the account storage
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acct.storage.save(<-vaultA, to: /storage/CadenceFungibleTokenTutorialVault)
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// Create a public Receiver capability to the Vault
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let ReceiverRef = acct.link<&ExampleToken.Vault{ExampleToken.Receiver, ExampleToken.Balance}>(/public/CadenceFungibleTokenTutorialReceiver, target: /storage/CadenceFungibleTokenTutorialVault)
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log("Created a Vault and published a reference")
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// Borrow a reference for the NFTMinter in storage
Run the transaction in Transaction 3. This is the SetupAccount1TransactionMinting.cdc file.
Use account 0x01 as the only signer to mint fungible tokens for account 1 and 2.
SetupAccount1TransactionMinting.cdc
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// SetupAccount1TransactionMinting.cdc
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import ExampleToken from 0x01
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import ExampleNFT from 0x02
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// This transaction mints tokens for both accounts using
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// the minter stored on account 0x01.
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transaction {
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// Public Vault Receiver References for both accounts
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let acct1Capability: Capability<&AnyResource{ExampleToken.Receiver}>
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let acct2Capability: Capability<&AnyResource{ExampleToken.Receiver}>
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// Private minter references for this account to mint tokens
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let minterRef: &ExampleToken.VaultMinter
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prepare(acct: AuthAccount) {
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// Get the public object for account 0x02
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let account2 = getAccount(0x02)
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// Retrieve public Vault Receiver references for both accounts