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The complete process of building a Web3 project: How to integrate IPFS, smart contracts, and front-end frameworks

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To build a complete Web3 project, it's essential to seamlessly integrate decentralized storage, smart contracts, and frontend interfaces. 1. **Decentralized Data Storage with IPFS**: - Use IPFS for immutable data storage, suitable for user files and NFT metadata. - Set up an IPFS node (local or public) to manage data. - Upload files to IPFS to obtain a unique CID, which is stored in a smart contract for easy access. 2. **Smart Contract Development**: - Smart contracts handle asset transfers and permissions. - Choose a blockchain and programming language (e.g., Solidity for Ethereum). - Define the contract structure, integrate IPFS CIDs, and deploy the contract using tools like Truffle or Hardhat. 3. **Frontend Development**: - Use a frontend framework like React, possibly with Next.js for server-side rendering. - Integrate Web3 libraries (ethers.js or web3.js) to connect wallets and interact with smart contracts. - Display content from IPFS by constructing URLs using stored CIDs. 4. **Enhancing User Experience**: - Address domain change issues by utilizing alternative domain navigation tools for stable access to exchanges. In summary, a successful Web3 project requires the effective integration of IPFS, smart contracts, and frontend frameworks, ensuring secure and transparent data handling while enhancing user experience with reliable access tools. This approach is suitable for beginners and advanced developers alike.

Building a complete Web3 project revolves around seamlessly integrating decentralized storage, smart contracts, and front-end display. IPFS is responsible for data storage, smart contracts handle business logic, and the front-end framework provides the user interaction interface. Below, we will break down how to integrate these three components step by step to create a fully functional Web3 application.

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1. Use IPFS to Store Decentralized Data#

IPFS (InterPlanetary File System) is a commonly used decentralized storage solution in Web3 projects. It ensures data immutability through content addressing, making it suitable for storing user-uploaded files, NFT metadata, and more.

  • Set Up an IPFS Node: You can choose to set up a local IPFS node or use public node services. Setting up a local node allows for better control over data uploads and access.
  • Upload Files to IPFS: Use the IPFS API or command-line tools to upload files to the IPFS network and obtain a unique CID (Content Identifier).
  • Store CID in Smart Contracts: The CID is key to accessing files; store it in the smart contract for easy front-end calls and data verification.

In NFT projects, images and metadata are uploaded to IPFS, while the smart contract only stores the CID, ensuring that on-chain data is lightweight and secure.

2. Write Smart Contracts to Implement Business Logic#

Smart contracts are the core of Web3 projects, responsible for handling asset transfers, permission control, state management, and more.

  • Choose Contract Language and Chain: Ethereum primarily uses Solidity, while other chains like BSC and Polygon are also supported. Choose the appropriate chain based on project needs.
  • Design Contract Structure: Define data structures and function interfaces. For example, an NFT contract needs to implement the ERC-721 or ERC-1155 standard to ensure compatibility.
  • Integrate IPFS CID: Store the CID returned from IPFS in the contract as the unique identifier for the asset.
  • Deploy the Contract: Use tools like Truffle or Hardhat to compile and deploy the contract to a testnet or mainnet.

After deployment, the address and ABI are key for front-end calls.

3. Build the User Interface with Front-End Frameworks#

The front end is responsible for user interaction, calling smart contracts and IPFS data, and displaying dynamic content.

  • Choose a Front-End Framework: React is currently the preferred choice for Web3 projects, and using Next.js can enable server-side rendering and SEO optimization.
  • Integrate Web3 Libraries: Use ethers.js or web3.js to connect wallets (like MetaMask) and enable on-chain interactions.
  • Call Smart Contracts: Use the contract address and ABI to call contract methods to read or write data.
  • Display IPFS Content: Based on the CID stored in the contract, concatenate the IPFS gateway address (e.g., https://ipfs.io/ipfs/{CID}) to load files.
  • Design User Operation Flows: For actions like minting NFTs, transferring assets, and viewing asset details, the front end should design clear interaction flows.

4. Enhance User Experience with Crypto Tools#

Domestic users often encounter domain change issues when accessing exchanges or related services. You can utilize the alternative domain navigation provided by Hyperlink Navigation for quick access to mainstream exchanges:

These alternative domains ensure stable access to exchanges, making it easier for users to manage assets and participate in on-chain activities.

Summary#

The key to building a Web3 project lies in the reasonable integration of IPFS, smart contracts, and front-end frameworks. IPFS is responsible for decentralized storage, smart contracts implement on-chain logic, and the front-end framework provides user interaction. By saving the IPFS CID to the contract, the front end can call the contract to obtain the CID and then load content through the IPFS gateway, achieving data security and transparency. Combining crypto tools like the alternative domains provided by Hyperlink Navigation enhances the user access experience. The overall process is clear, and the technology stack is mature, making it suitable for beginners to practice and develop in depth.

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