Skills required for blockchain application DApp development

foreword

The previous blockchain series articles introduced blockchain technology, smart contracts, web3js, and Solidity programming language. From the perspective of developers, it is necessary to develop a DApp (decentralized application program) in the Web3 era based on these knowledge. This article will introduce why DApps should be developed, and summarize what skills are needed to develop DApps.

Why develop DApps

The purpose of developing DApp is to build applications in a decentralized environment. Traditional applications are usually run by centralized servers, so that the control of the application is concentrated in the hands of a few large companies or organizations. DApp is based on blockchain technology, which makes the control of the application distributed among the nodes on the network, so it is more decentralized and transparent.

Advantages of DApps

1. Decentralization: DApp is based on blockchain technology, so there is no single central server or control point, which makes the application more secure, reliable and transparent.

2. No need for trust: Since DApp is built on the basis of blockchain technology, it does not need to trust any central authority. This means that users can trust that all transactions in the DApp are fair and transparent.

3. Open source code: The code of the DApp is open, which means that anyone can view and review the code, which increases the security and reliability of the application.

4. Autonomous control: Unlike traditional applications, DApp users have more control. They can independently choose whether to participate in the network, and have the right to make decisions on the development of the network.

In conclusion, DApp can bring more transparent, reliable and secure applications, especially in the areas of finance, social, collaboration and gaming.

DApp application scope

At present, the application scope of DApp has gradually expanded. In addition to Ethereum, other blockchain platforms (such as EOS, TRON, NEAR, etc.) also have their own DApp ecosystem. According to statistics, by the first quarter of 2021, the number of DApps worldwide has exceeded 3,800, of which DeFi (decentralized finance) and game DApps are the mainstream. The number of DApps on the Ethereum platform is the largest, accounting for more than 80% of the entire DApp market.

DApps in the DeFi field are currently receiving widespread attention and applications around the world, especially decentralized exchanges (DEX), stablecoins, and lending platforms. As of the first quarter of 2021, the number of DApps in the global DeFi field has exceeded 1,000, and the total market value has reached more than 30 billion US dollars.

Game DApps are also another major area of ​​the DApp market, and its application scope covers many game types, such as card games, role-playing games, and real-time strategy games. At present, the number of game DApps in the world has exceeded 1,500, among which the number of game DApps on the Ethereum platform is the largest.

Generally speaking, the development prospect of the DApp market is very broad. With the continuous development of blockchain technology and the continuous expansion of application scenarios, DApp will definitely play a more important role in the future.

DApp Developer Skills

DApp (decentralized application) development involves several skills, including:

1. Blockchain technology: understand the basic knowledge of the concept, principle, technology and application scenarios of blockchain.

2. Programming language: To master Solidity, a smart contract programming language based on the Ethereum blockchain, you need to be familiar with its syntax, data types, functions, events and other basic concepts.

3. Blockchain Node: Understand the basic concept and structure of a blockchain node, and how to communicate and interact with the node through the command line or API.

4. Smart contract development: It is necessary to understand the design, development and deployment process of smart contracts, as well as the interaction with front-end applications.

5. Smart contract development framework: understand commonly used smart contract development frameworks, such as Truffle and Embark, and master their usage.

6. Web3.js: Learn about Web3.js, a JavaScript library that communicates with Ethereum nodes and can be used to interact with smart contracts on the Ethereum blockchain.

7. Front-end technology: Master HTML, CSS and JavaScript, as well as commonly used front-end frameworks, such as React and Angular.

8. Database: Understand the basic concepts and structure of blockchain databases, and master the methods of interacting with them.

9. Security: Understand the common security vulnerabilities and attack methods of DApps, and be able to take corresponding defensive measures.

In short, DApp development requires developers to have knowledge and skills in various aspects such as blockchain technology, programming language and front-end technology.