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Building NFT Smart Contracts: A Developer's Guide

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In the past years, there has been a boom in NFTs (non-fungible tokens), leading to advancement in the digital sector and creating new opportunities for developers, artists, and creators. The NFT sales in 2021 were $25 billion, an indication that cryptocurrency popularity is increasing rapidly and has no signs of slowing down at any time.

As the sector continues to grow, developing NFT smart contracts is an essential skill for developers interested in the crypto industry. However, developing these smart contracts requires a deep understanding of blockchain technology and programming languages. Whether you want to create collectibles, mint digital art, or build other applications for blockchain, you need to understand the basics and how to develop an efficient and secure NFT smart contract scratch.

In this article, we will walk you through the process of building a NFT smart contract. We will cover the definition of an NFT smart contract, the functions of NFT smart contracts, the benefits of developing a smart contract, how to develop an NFT smart contract, tips for choosing the right NFT smart contract developer, and use cases of NFT smart contracts. Without wasting time, let's dive in!

What are NFT Smart Contracts?

NFTs (non-fungible tokens) are digital assets, just like cryptocurrency. However, due to their unique non-fungibility, they can only be owned by a single person, unlike crypto, which has billions available. NFTs have a limited supply of a single unique digital token.

This kind of blockchain is mostly tied to metadata or token IDs that store ownership proof for anyone who purchases the NFT. That's where smart contracts come in.

Smart contracts are self-executing digital documents that control and assign NFT ownership, giving you access to develop, trade, or destroy it. In simple terms, smart contracts and NFT are intertwined, and NFT can't exist without the contracts.

Smart contracts are used to assign token ownership and mint NFTs. Once an NFT is minted, smart contracts automatically give the creator ownership. After someone makes a sale, the NFT smart contracts transfer it to the new owner.

When auctioning NFTs in a marketplace, they use a specific smart contracts suite. They hold the token ownership temporarily until the set terms are met, such as the price or a certain date. Furthermore, they can set specific parameters to either transfer back the ownership or cancel the auction if the bid price is not met.

Remember, smart contracts are not legal contracts; rather, computer code is designed to execute actions automatically once set standards are met.

Functions of NFT Smart Contracts

Smart contracts are important as the NFTs can't work without them. They automate various processes that make it possible for NFTs to function well. Without smart contracts, NFTs wouldn't have features that make them transferrable, unique, and valuable. Let's check some of NFT smart contracts functions;

Destruction and Burn

Everything that is created can easily be destroyed. Burning an NFT removes it from the blockchain completely, reducing the total supply. Once an NFT is no longer relevant, most people opt to burn it to create scarcity, redeem any physical items, or free the storage from any unwanted tokens. Burning or destroying is not irreversible at all.

Trading, Minting, and Transferring NFT

First, what is minting? This is the process where a regular digital asset is converted to a digital asset stored mostly on the blockchain. During the process, the digital assets are turned into NFTs, which can be traded on a marketplace for NFTs.

During the process, smart contracts now identify the properties, ownership, and use of NFTs, making it easy for them to be developed and implemented. After the data is verified, the owner of the NFT can now sell, monetize, and trade it. Once an action like trading or transferring is completed, the address of the wallet will automatically be updated.

Secondary Sales and Royalties

Some NFT smart contracts integrate with royalty mechanisms. In addition to earning from the first sale, creators can earn commission from royalties on secondary sales. Just a few code lines in smart contracts can make these easy.

For buyers, this is a perfect chance to collect limited and unique collectibles. For instance, when buying music on websites, you only buy to enjoy it, not to own it. But from the NFT marketplace, you can resell the music or have full rights to use it.

Integration with DeFi platforms

A single NFT follows various protocols, such as ERC-1155 or ERC-721, making it compatible with different platforms and markets.

You can use NFT as part of more complex financial instruments, especially on decentralized financial exchanges, or as collateral for making profits. The integration can be developed directly on NFT smart contracts, and in the blockchain world, it is going to become a breakthrough.

Prevents Plagiarism

There has been a rise in plagiarism in the copywriting industry, with people copying and pasting directly. Due to this, most digital works have been stolen.

Both smart contracts and non-fungible tokens are addressing this issue. The NFT has a unique digital token code that is saved in public smart contracts, thus proving ownership and authenticity to everyone. By using the wallet address and token ID, it is easy to know the original owner of a transaction history and NFT.

Metadata can also be stored both off-chain and on-chain. Everyone can access it when it is available on an on-chain.

People are using NFT smart contracts to control certain digital assets. The addresses are authorized for burning, minting, or handling other administrative tasks. This maintains the integrity and security of the NFT system.

Benefits of Building Smart Contracts

Smart contracts offer users a wide range of benefits, thus increasing the popularity of blockchain technology. These contracts automate most tasks, making them too invaluable to ignore.

Here are some of the main benefits of developing smart contracts for your firm.

Security

Smart contracts have the power and ability to execute various functions depending on specific terms, but how secure are they? Many people are still looking for answers to this question. However, developers are always focusing on implementing top security measures to ensure the code is fit and robust for the purpose.

You can test the code with the right support team to make sure it is successfully executed and meets the terms and conditions. These contracts are not 100% secure; they can be hacked or fail due to bugs in the code. Thus, developers leverage an auditing service that goes through the code line by line to detect any issues.

Additionally, data encryption can be used to enhance the security of blockchain and store transactions.

Enhanced Transparency

The blockchain code you create is the contract, and it's always available for anyone to view. Smart contracts provide open and unchangeable transaction records, making them more transparent and enhancing trust.

They are mostly called «Trustless» as no third party can access them and work on deals. Every party involved in adhering to the contract terms makes it easier for everyone.

Improved Effectiveness

Smart contracts can automate various tasks such as identity verification, contract enforcement, and payment execution. By streamlining the contract execution process and removing any middleman involvement, they help businesses save both time and money.

Faster Execution

Smart contracts automate various stages of a contract, thus speeding up the execution process. In smart contracts, terms and conditions are written as code, and once the conditions are met, they are immediately executed. It is a binary thing. Once both parties meet the terms, the code triggers the desired outcome immediately.

Whether releasing money or transferring contract ownership, smart contracts always ensure the desired outcome occurs after the set criteria are met.

Low Expenses

In smart contracts, intermediaries, bankers, and attorneys are not needed, thus reducing the expenses of paying them. Additionally, these contracts can reduce disagreements and mistakes, helping businesses cut more costs.

Storage and Backup

Smart contracts are stored in a decentralized, publicly accessible, and immutable technology, the blockchain. This technology makes sure every transaction is recorded and accessible to the involved parties.

Since the data is stored on a distributed ledger, copies of the contract are available across every computer powering the network. Also, every computer needs to agree on whether the data is accurate. In other words, an on-chain smart contract is redundantly available for access and trusted.

Other benefits of developing an NFT smart contract include no paperwork, highly reliable, adaptable contract conditions, and better precision. Smart contracts have become game-changers in various industries.

How to Develop a NFT Smart Contracts: Step-by-Step Guide

The process of developing non-fungible token smart contracts is complex and needs experience and knowledge in blockchain technology, programming languages, and encryption methods. However, you can hire an experienced developer to do the work for you.

Here is a step-by-step guide on how to develop NFT smart contracts;

Identify the Business Needs

The first step in developing a smart contract is identifying the business needs. This involves identifying various operations that can be automated, identifying the contract parties, and evaluating the benefits of automation.

Define the Terms of the Smart Contract

Defining the terms of the smart contract is a crucial step that you need to handle second. This entails stating the terms of the agreement, who is who, and everything that needs to happen in order to make the contract effective.
You need to ensure that the contract is deployed appropriately and represents all the agreements of the smart contract. Be careful, as this stage is crucial.

Choose a Blockchain Network

Now that you have the business needs and the terms of the contract, the next step is to select a blockchain network. This entails doing research and comparing various blockchain systems based on attributes like scalability, usability, and security.

Some of the common blockchain networks used for developing NFT smart contracts include Ethereum, EOS, and Hyperledger Fabric.

Select a Programming Language

One of the most used programming languages employed on Ethereum is Solidity. This language was designed to assist in creating smart contracts on blockchain technology. With this language, developers can create smart contracts that can build a chain of transaction records and implement business logic.

Other programming languages that you can use to develop smart contracts include Vyper, Simplicity, and Chaincode.

Generate a Smart Contract Code

When developing a smart contract, you need to code it using the contract terms and the programming language you chose. This involves writing code that follows the contract terms' specified parameters and will implement the agreement of the contract.

To ensure that the contract runs smoothly, you need to design the code very precisely.

Test the Smart Contract

After deciding on how to develop your smart contract, it is important to test it and see if it functions correctly. You can check the code you generated for any defects or mistakes to see how it performs. To make sure the contract functions smoothly and as planned, the testing stage is crucial during the contract development process.

Launch the Smart Contract

Congratulations! You are almost ready to launch your first NFT smart contract. After following all the above steps and testing the contract to ensure it is functioning smoothly, you can launch it on your selected blockchain platform.

This involves running the smart contract code once you upload it to a blockchain. After implementing the contract, the parties can now control and oversee it.

Managing the Contract

Now, everything is done, and you have successfully implemented your smart contract, but that's not the end. You need to monitor and manage the contract. Keep a close eye on how the contract is being used, address any issues that come up in advance, and revise the agreement from time to time. Keep monitoring the contract to make sure it is functioning and safe as intended.

Creating a smart contract that functions well can take some weeks, depending on the availability of resources. Some variables play a crucial part in determining how long it will take to develop the contract. These include:

  • Resources
  • Programming language experience
  • Testing process and fixing
  • Ensuring safety and precision

Remember, you can always hire an expert to make the process easy for you. Once the smart contract is ready, you can use it immediately.

Tips for Choosing the Right NFT Smart Contract Developers

With the rise in the NFT smart contract, the market is saturated with developers like MetaLamp. Thus, selecting the right developer is crucial to ensure there is no room for errors and faults that might lead to exploitation. The best way to avoid this is for developers to have enough experience and expertise in developing NFT smart contracts.

Here are some tips that will help you choose the right NFT smart contract developers;

  1. Reviews and Track Records: A good developer for NFTs smart contracts needs to have a positive online reputation. You need to look for the developer's reviews and ratings from past clients before committing to that on their website and other social media. Through the reviews, you can learn more about the company's communication style, work attitude, and how they deliver their projects.
  2. Budget: When choosing a developer company, budget is one important factor to consider. First, set your budget for the development of smart contracts. Look for at least two companies and compare their prices to see which one is budget-friendly and meets your needs. Remember, don't go for a low-budget developer who won't meet your needs.
  3. Security: In blockchain, security is a vital factor. Ensure the NFT smart contract developer company you select goes the extra mile in security. Choose a partner whose main focus is on security measures and implementing various code-testing methods. If you choose a company with top-tier security measures, you will be sure that the smart contracts will be safe and that there will be no security threats or risks.
  4. 24/7 Customer Support: Customer service is crucial for smart contract development companies. Not only before the work is done but even after, you might need to get support. You need to go for a company that offers instant and 24/7 support even after the service.
  5. Portfolio: A good portfolio is a clear indication that the company has the necessary expertise and qualifications in NFT smart contracts. Check their experience with blockchain technology and their past projects on smart contracts.
  6. All-in-one Method: When choosing a company for your smart contract development projects, look for one that provides various services other than development. Look for one that can advise you, support you throughout the process, and test your project.

By implementing these tips, you will get a developer who guarantees flawless smart contract functionality from the beginning all through to launching it. Furthermore, one who can make adjustments from time to time, ensuring seamless functionalities of the NFT smart contract.

Use Cases of Smart Contracts

Final Thoughts

Gone are the days when you needed papers and attorneys to make agreements. Today, the introduction of smart contracts is revolutionizing different industries. It has enhanced transactions, increasing safety and efficiency, thus automating agreement procedures and improving transparency. Creating an NFT smart contract for your business is very easy with our simple guide, and it can take you less than a month to finalize the process. However, if you don't know blockchain and programming languages, you need to hire a developer. Ensure you do thorough research on the development company to make sure they offer 24/7 customer supprt and security, are within your budget, have a positive online reputation, and have a good portfolio showing success in their previous projects. The world is changing, and NFT smart contracts are advancing each day. Thus, it is advisable to adapt to these new changes while still in the early stages.

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