node区块链开发,node.js 区块链

近年来，随着区块链技术的发展，越来越多的企业开始将其应用到各个行业，以提高效率和改善安全性。其中，Node.js 区块链技术受到了广泛的关注，它可以帮助企业构建安全的、可扩展的、可靠的分布式应用程序。

Node.js 是一个基于 JavaScript 的服务器端编程语言，它可以帮助开发者快速构建高性能的网络应用程序。它也可以用于构建区块链应用程序，因为它提供了一种快速、灵活的方式来构建分布式系统。

使用 Node.js 开发区块链应用程序的优势在于，它可以提供更快的速度，更好的可扩展性和更高的安全性。 Node.js 可以构建一个可扩展的、可靠的区块链网络，这样可以帮助企业更快地完成业务流程，提高生产力。

此外，Node.js 还提供了一种强大的 API，可以帮助开发者轻松构建分布式应用程序。它提供了一个简单的模型，可以让开发者快速构建和部署分布式应用程序，而不会受到复杂的网络架构的限制。

总之，Node.js 区块链技术可以为企业提供更安全、更可靠的分布式应用程序。它可以帮助企业构建可扩展的网络，提高生产力，提供更快的速度和更高的可靠性。因此，Node.js 区块链技术是一种非常有效的工具，可以帮助企业更好地实现分布式应用程序的可扩展性和安全性。

❶ What is the model architecture of blockchain?

Currently, there is a wide range of blockchain training courses on the market, with various course contents and teaching formats.

Blockchain

1. Introduction to programming basics

Computer software and hardware basics, character sets and character encodings, HTMLCSS (including HTML5CSS3), ECMABOMDOM, jQuery, node.js, Ajax and Express

2. Go programming language

Go basic syntax, process control, functions and data, error handling, Go object-oriented programming, Go concurrent programming, Go Network programming, Go security programming, Go advanced programming (goroutine, channel), database MySQL, LevelDB

3, Blockchain 1.0 - Bitcoin Bitcoin

Bitcoin principle, Bitcoin system architecture, cryptographic algorithm (implemented in Go language), consensus algorithm (implemented in Go language), Bitcoin transaction principles and transaction scripts, Bitcoin RPC programming (implemented by node.js), Bitcoin Minhra coin source code analysis

4. Blockchain 2.0 - Ethereum

The working principle and infrastructure of Ethereum, basic concepts of Ethereum (account, transaction, Gas), Ethereum wallet Mist and Metamask, Ethereum Forex trading, ERC20 standard Token development and deployment, developing IDE with Ethereum as a bridge - remix-ide, smart contracts and Solidity, Solidity deployment, backup and calling, framework technology: truffle and web3, DApp development practice, Geth

5. Blockchain 3.0 - Fabric of Hyperledger

Hyperledger project introduction, Fabric deployment and usage, Fabric configuration management, Fabric architecture design, Fabric CA application and configuration, application development Actual combat.

❷ Getting started with blockchain technology, which programming languages ​​are involved

Go language

Go language (Golang) is a brand-new programming language launched by Google in 2009 Language that reduces code complexity without sacrificing application performance. Rob Pike, chief software engineer at Google, said: "We developed Go because the difficulty of software development over the past 10 years or so has been frustrating."

In addition to Bitcoin being developed in C++, At present, the clients of most mainstream workshops are developed with Go language, which is enough to show the status of Go language in the entire blockchain industry.

C++

C++ further expands and improves the C language and is an object-oriented programming language. C++ can run on a variety of platforms, such as Windows and MAC operationssystems and various versions of UNIX. C++ is a very widely used computer programming language. It is a general programming language that supports multiple programming patterns, such as procedural programming, data abstraction, object-oriented programming, generic programming, and design patterns.

Most blockchain companies choose to use C++ to write the bottom layer of the blockchain. The most famous ones are Bitcoin, Ripple, etc., which mainly reflect strong computation.

Java

Java is different from general compiled languages ​​or interpreted languages. It first compiles the source code into bytecode, and then relies on virtual machines on various platforms to interpret and execute the bytecode, thereby achieving the cross-platform feature of "write once, run anywhere". The development of blockchain projects has obvious dependence on Java.

Others include Python, system architecture, Ethereum, Linux, hyperledger, JavaScript, etc. will be covered.

❸ Easy to understand What is blockchain

Bitcoin began with the paper of the mysterious Satoshi Nakamoto in 2008. In the 13 years since its birth, Bitcoin has experienced countless market tests and technical attacks, but it has always stood firm.

Now Bitcoin has grown into a currency system with millions of users around the world, tens of thousands of merchants accepting payments, and a market value of up to tens of billions of dollars.

In layman's terms, a Bitcoin user runs the Bitcoin client software, and such a computer is called a node. A large number of node computers are connected to each other to form a P2P (peer-to-peer) network.

The specific principle can be understood like this:

For example, A has 10 Bitcoins and wants to transfer 1 to B, and B’s original account The balance is 2 Bitcoins.

• A first broadcasts the transfer transaction request to surrounding nodes: "Attention everyone, I am A, and I want to transfer 1 Bitcoin to B. This broadcast is true and signed with my private key. "

• Nodes around A receive A's broadcast, first check the authenticity of the transaction signature of A's account, and then check whether A's account has sufficient balance.

• After checking and confirming that there is no problem, the node starts to make a note on its own account book: Account A transfers 1 Bitcoin to Account B, and modifies the account balances of A and B: Account A balance = 10 Bitcoin - 1 Bitcoin = 9 Bitcoins, account B balance = 2 Bitcoins + 1 Bitcoin = 3 Bitcoins.

• After the node has finished recording, it broadcasts the transaction to the surrounding node brothers, spreading it from ten to ten until all nodes receive the transaction. The transaction between A and B was recognized by the entire network.

❹ "Node.js Blockchain Development》pdf download and online reading, please ask for Baidu network disk cloud resources

"Node.js Blockchain Development" (Zhu Zhiwen) e-book network disk download for free online reading

Resource link:

Link:

Book title: Node.js Blockchain Development

Author: Zhu Zhiwen

Douban score: 4.8

Publisher: Machinery Industry Press

Publishing year: 2017-5

Content introduction:

Developer. This book covers all aspects of front-end and back-end. Both front-end developers and back-end developers can learn and refer to it.

Architect. Blockchain itself is a model of distributed and cloud computing. This book describes the architectural design of a blockchain product in detail. Through this book, they can learn and master how blockchain builds complex adaptive systems based on P2P networks. .

College students, teachers, scientific researchers, etc. In the process of sharing the content of this book on the Internet, university teachers have already used it as teaching reference in actual teaching. From concept to code implementation, this book closely integrates theory and practice, explains the profound things in simple terms, and is suitable for systematic research and learning of blockchain technology.

Readers who learn Node.js. This book introduces the introductory knowledge of Node.js, including the technical principles and usage skills of Node.js. It is a complete Node.js use case. Junior and intermediate readers with a certain JavaScript foundation can learn and improve more deeply through this book. Use Node.js coding skills.

❺ How to develop blockchain How to do blockchain development

Go is an open source programming language that makes construction simple, reliable and efficient software made easy. If you want to learn this programming language, you must first find a good tutorial. Brothers in Arms Go Language + Blockchain Training has recently released a new set of Go language tutorials, and the teacher’s lectures are very good!

As the concept of "blockchain" is being discussed globally, related blockchain technology applications have quietly been added to daily life scenarios such as finance, logistics, credit reporting, manufacturing, and retail. Some experts said that in the future, blockchain will be closely related to people's lives, and the integration of blockchain technology into people's daily lives is the general trend.

The popularity of the blockchain market has triggered a large demand for talents based on blockchain technical personnel, and the popularity of blockchain talents is rising at light speed. According to the "2018 Blockchain High Salary List" released by Lagou.com, domestic corporate giants such as Tencent, Xiaomi, Suning, and JD.com have released numerous high-paying blockchain job requirements in an effort to explore blockchain-related technologies and applications. The list also points out that high-paying positions are mainly in demand for blockchain-related technical positions, among which Suning and Keda have given the highest monthly salary of 100k.

The huge market demand for technical talents will inevitably drive the explosive emergence and growth of the entire blockchain training market. Most training models can be divided into online training, traditional IT institution training and high-end offline short-term training camps. However, the market is also full of various blockchain training chaos during the hot evolution: the instructor qualifications are watered down. , Even the most basic names are not disclosed, the course syllabus is opaque, the teaching quality has shrunk, the class schedule is unreasonable, and the training fee standards are uneven, etc.

With the large-scale development of the entire blockchain training market, Brothers Education has joined hands with senior blockchain expert Yin Cheng and his Tsinghua Shuimu Weiming team to establish the Blockchain Academy, leveraging its professional and powerful technology The team of lecturers, detailed and comprehensive curriculum system, and massive actual enterprise blockchain projects are designed to deepen the field of blockchain education and training and cultivate more professional technical talents for enterprises and society.

Yin Cheng, a senior blockchain technology expert and the dean of Brotherhood Blockchain Academy, graduated from Tsinghua University. He has served as a Google algorithm engineer, the world's most valuable expert in the Microsoft blockchain field, and a Microsoft Tech.Ed conference Gold medal lecturer. Proficient in C/C++, Python, Go language, Sicikit-Learn and TensorFlow. With 15 years of programming experience and 5 years of teaching experience, he is a senior software architect, Intel software technology expert, a famous technical expert, and has many years of working experience in the world's top IT companies, Microsoft and Google. He has many years of experience in software programming and teaching as a lecturer, and has developed many products in human-computer interaction, education, information security, advertising, and blockchain systems. He has profound project management experience and R&D experience, holds two artificial intelligence invention patents, and has practical experience in developing electronic currency and deploying it to Microsoft Windows Azure. The teaching explanations are simple and profound, so that students can apply what they have learned.
The first phase: blockchain industry and Go programming for 5 weeks
The second phase: cryptography and consensus algorithm for 2 weeks
The third phase: Ethereum source code analysis and development for 3 weeks
/>Phase 4: Hyperledger and Node.js 2 weeks
Phase 5: Bitcoin & EOS 4 weeks
Phase 6: Comprehensive project practice

❻ How to learn hyperledger nodejs

I will try it out in two days. At this stage, there are 10 servers. The team members have not returned completely. When they come back, they will have a meeting to discuss how to deploy, including determining the OS, the number of nodes, deployment scripts, etc., when the time comes Let’s communicate together