In this tutorial, you'll deploy your unique Azuki ERC721A NFT by leveraging BuildBear's No-Code deployment solution.BuildBear has integrated with CookBook, providing an intuitive platform for effortless contract deployment. For more details on this integration, please refer to: <a href="https://www.buildbear.io/resources/guides-and-tutorials/Cookbook_BuildBear**">https://www.buildbear.io/resources/guides-and-tutorials/Cookbook_BuildBear</a>The Azuki ERC721A NFT smart contract is a specific implementation of the ERC721A standard, which is a variant of the ERC721 non-fungible token (NFT) standard. This smart contract has several notable features:<ol style="list-style-type:decimal;"><li>Built-in Sale: The contract includes a sale mechanism where users can purchase NFTs at an adjustable price.</li><li>Limited Purchase: Wallets have a limit on the number of NFTs they can buy during the sale. This is to ensure that a large number of users can participate in the sale.</li><li>Reserve Function: The contract owner has the ability to mint free NFTs using a reserved function.</li><li>Fixed Maximum Supply: There is a predetermined maximum supply of NFTs that can be minted in this contract.</li><li>Gas Cost Optimization: The smart contract is optimized for reduced gas costs when minting many NFTs at the same time.</li></ol>This contract allows users to mint NFTs, sets a sale price for each NFT, limits the number of NFTs that can be purchased per wallet, and includes functionality for the contract owner to reserve and mint additional NFTs. Additionally, the contract provides the ability to withdraw proceeds from the sale and allows the owner to adjust the sale activation status, sale price, wallet limit, and base URI for NFT metadata.let's deploy the contract and delve into its functionalities.For those new to BuildBear, start by signing up at <a href="http://buildbear.io/">buildbear.io</a>.Upon logging in, you will be greeted by a page resembling the image below:<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_9b51c5ea77.png" alt="Untitled.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_9b51c5ea77.png 245w,https://strapi.buildbear.io/uploads/small_Untitled_9b51c5ea77.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_9b51c5ea77.png 750w,https://strapi.buildbear.io/uploads/large_Untitled_9b51c5ea77.png 1000w," sizes="100vw"></figure>Click on the "Create BuildBear Testnet" option to initiate the configuration of your test blockchain. You can either fork from existing Mainnets or construct a new Testnet from scratch.<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_1_9dc2c7f928.png" alt="Untitled 1.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_1_9dc2c7f928.png 245w,https://strapi.buildbear.io/uploads/small_Untitled_1_9dc2c7f928.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_1_9dc2c7f928.png 750w,https://strapi.buildbear.io/uploads/large_Untitled_1_9dc2c7f928.png 1000w," sizes="100vw"></figure>Add your Private Testnet to your MetaMask wallet by using the “Add to Metamask” button:Next, proceed by clicking the "One-Click Deploy" button:<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_2_e35d6d1c47.png" alt="Untitled 2.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_2_e35d6d1c47.png 245w,https://strapi.buildbear.io/uploads/small_Untitled_2_e35d6d1c47.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_2_e35d6d1c47.png 750w,https://strapi.buildbear.io/uploads/large_Untitled_2_e35d6d1c47.png 1000w," sizes="100vw"></figure>As illustrated above, BuildBear support over 30 contracts. However, for the scope of this tutorial, our focus will be on the ERC721A NFT Sale contract.<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_3_53f6a24de6.png" alt="Untitled 3.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_3_53f6a24de6.png 245w,https://strapi.buildbear.io/uploads/small_Untitled_3_53f6a24de6.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_3_53f6a24de6.png 750w,https://strapi.buildbear.io/uploads/large_Untitled_3_53f6a24de6.png 1000w," sizes="100vw"></figure>As Shown above, enter the contractor arguments. These arguments define the initial configuration of the NFT sale and govern the behavior of the contract.The constructor of the&nbsp;<code>LimitedERC721A</code>&nbsp;contract takes the following arguments:<ol style="list-style-type:decimal;"><li><code>_name</code>: The name of the NFT.</li><li><code>_symbol</code>: The symbol of the NFT.</li><li><code>_uri</code>: The token URI used for metadata.</li><li><code>limit</code>: The wallet limit, which is the maximum number of NFTs that can be bought by a wallet during the sale.</li><li><code>price</code>: The initial price of each NFT during the sale. The precision of the price is 18 decimals.</li><li><code>maxSupply</code>: The maximum number of NFTs that can be minted. Once this limit is reached, no more NFTs can be minted.</li></ol>You have the choice to deploy the contract using unlocked accounts or your own wallet. Once you've made your selection, click on "Deploy." Subsequently, follow the provided link to be directed to the contract page on the Explorer.<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_4_134c6e1908.png" alt="Untitled 4.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_4_134c6e1908.png 219w,https://strapi.buildbear.io/uploads/small_Untitled_4_134c6e1908.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_4_134c6e1908.png 750w,https://strapi.buildbear.io/uploads/large_Untitled_4_134c6e1908.png 1000w," sizes="100vw"></figure>Minting NFTsProceed to the "Write Contract" section and click on "Connect to Wallet." Navigate to the mint function, enter the desired number of NFTs for minting, and then click "Write." Complete the transaction approval on your wallet.<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_5_47a3217a54.png" alt="Untitled 5.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_5_47a3217a54.png 245w,https://strapi.buildbear.io/uploads/small_Untitled_5_47a3217a54.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_5_47a3217a54.png 750w,https://strapi.buildbear.io/uploads/large_Untitled_5_47a3217a54.png 1000w," sizes="100vw"></figure>Click the transaction link to access the Transaction data. In this example, since "2" was entered, it's evident that two NFTs have been minted for my address, as depicted below. The associated IDs are "0" and "1.”<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_6_5f439640a8.png" alt="Untitled 6.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_6_5f439640a8.png 204w,https://strapi.buildbear.io/uploads/small_Untitled_6_5f439640a8.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_6_5f439640a8.png 750w,https://strapi.buildbear.io/uploads/large_Untitled_6_5f439640a8.png 1000w," sizes="100vw"></figure>Checking Your BalanceTo view your balance, navigate to the "Read Contract" section and input your address in the <code>balanceOf</code> function, as demonstrated below.<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Untitled_7_097cba5d1d.png" alt="Untitled 7.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Untitled_7_097cba5d1d.png 245w,https://strapi.buildbear.io/uploads/small_Untitled_7_097cba5d1d.png 500w,https://strapi.buildbear.io/uploads/medium_Untitled_7_097cba5d1d.png 750w," sizes="100vw"></figure>Understanding the Smart ContractLet's delve into how the smart contract operates.<figure class="image"><img src="https://strapi.buildbear.io/uploads/carbon_1_393b285bf9.svg" alt="carbon (1).svg"></figure><a href="https://github.com/BuildBearLabs/Tutorials/blob/main/Azuki-ERC721A-NFT-Sale/contracts/ERC721a-limited.sol">GitHub Repo</a>&nbsp;let's go through the functions present in the smart contract.<ul><li><code>constructor</code>: This is the constructor function that is called when the contract is deployed. It initializes the contract by setting the name, symbol, base URI, wallet limit, initial price, and maximum supply of the NFT.</li><li><code>mint</code>: This is an external function that allows users to purchase and mint NFTs. It requires that the sale is active, the minted NFTs will not exceed the maximum supply, and the user sends a sufficient amount of Ether (equal to the current price multiplied by the minting amount). It then mints the specified number of NFTs to the caller.</li><li><code>reserve</code>: This is an external function that allows the owner (contract deployer) to reserve a specific number of NFTs without interacting with the sale. It requires that the reserved NFTs will not exceed the maximum supply. It mints the specified number of NFTs and sends them to the provided address.</li><li><code>withdraw</code>: This is an external function that allows the owner to withdraw all the proceeds from the sale. It transfers the contract's balance (Ether) to the owner.</li><li><code>setSaleIsActive</code>: This is an external function that allows the owner to set whether the NFT sale is active or not. Only the owner can call this function.</li><li><code>setCurrentPrice</code>: This is an external function that allows the owner to set the price of each NFT during the initial sale. Only the owner can call this function.</li><li><code>setWalletLimit</code>: This is an external function that allows the owner to set the maximum number of NFTs that can be bought by a specific address or wallet. Only the owner can call this function.</li><li><code>setBaseURI</code>: This is an external function that allows the owner to update the base URI used to retrieve NFT metadata.</li><li><code>_baseURI</code>: This is an internal function that overrides the internal OpenZeppelin <code>_baseURI</code>&nbsp;function. It returns the extended base URI used to retrieve NFT metadata.</li></ul>Collectively, these functions empower you to deploy and manage a limited ERC721A NFT sale, featuring adjustable prices, wallet limits, reserved NFTs, and more, as detailed in the contract.🎉🎉&nbsp;Congratulations!You've successfully deployed an ERC721A NFT Smart Contract, minted NFTs, and gained an understanding of the contract's workings.About <a href="http://buildbear.io/">BuildBear</a>:BuildBear is a platform for testing dApps at scale, for teams. It provides users with their own private Testnet to test their smart contracts and dApps, which can be forked from any EVM chain. It also provides a Faucet, Explorer, and RPC for testing purposes.<blockquote>BuildBear aims to build an ecosystem of tools for testing dApps at scale for the teams.</blockquote>

Deploy Your Own Azuki ERC721A NFT with BuildBear's No-Code Deployment

Let’s get started then, Shall we?

Let’s get started then, Shall we?

Test DApps at Scale.