区块链js框架,区块链js部署框架

今天我们要讨论的是区块链js框架、区块链js部署框架以及区块链js开发工具。在区块链技术的发展中，这三种工具发挥着重要的作用，让区块链技术变得更加容易上手。

首先，让我们来讨论一下区块链js框架。 区块链js框架是一种基于JavaScript的开发框架，它可以帮助开发者快速构建和部署区块链应用程序。它提供了一系列的API，可以帮助开发者轻松构建他们的应用程序，而无需太多的编码。它还提供了一些有用的工具，可以帮助开发者更好地管理和测试他们的应用程序。其次，让我们来讨论一下区块链js部署框架。 区块链js部署框架是一种用于部署区块链应用程序的工具，它可以帮助开发者快速部署他们的应用程序。它提供了一系列的API，可以帮助开发者快速部署他们的应用程序，而无需太多的编码。它还提供了一些有用的工具，可以帮助开发者更好地管理和测试他们的应用程序。最后，让我们来讨论一下区块链js开发工具。 区块链js开发工具是一种用于开发区块链应用程序的工具，它可以帮助开发者快速开发他们的应用程序。它提供了一系列的API，可以帮助开发者快速开发他们的应用程序，而无需太多的编码。它还提供了一些有用的工具，可以帮助开发者更好地管理和测试他们的应用程序。总的来说，区块链js框架、区块链js部署框架以及区块链js开发工具是区块链技术发展中不可或缺的重要工具，它们可以帮助开发者快速构建和部署他们的应用程序，极大地提高效率。
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A. Introduction to the courses on blockchain technology architecture

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 encoding, HTML+CSS (including HTML5+CSS3), ECMA + BOM + DOM, 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 principles, Bitcoin system architecture, cryptographic algorithms (implemented in Go language), consensus algorithms (implemented in Go language), Bitcoin transaction principles and transaction scripts, Bitcoin RPC programming (node .js implementation), Bitcoin source code analysis

4. Blockchain 2.0 - Ethereum

The working principle and infrastructure of Ethereum, the basic concepts of Ethereum (accounts, transactions , Gas), Ethereum wallet Mist and Metamask, Ethereum transactions, ERC20 standard Token development and deployment, Ethereum development IDE - 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 use, Fabric configuration management, Fabric architecture design, Fabric CA application and configuration, application development practice.

The Xueshuo Innovation Blockchain Technology Workstation under Lianqiao Education Online is the only "blockchain technology" approved by the "Smart Learning Workshop 2020- Xueshuo Innovation Workstation" carried out by the School Planning and Construction Development Center of the Ministry of Education of China. Professional” pilot workstation. The professional base is based on providing students with diversified growth paths, promoting the reform of the training model integrating professional degree research, production, and research, and building an applied and compound talent training system.

B. What experiences are worth learning from in the development process of blockchain projects?

Strategic awareness and strategic planning. Carry out industrial layout and promote application implementation
If you are or plan to create a project on Polkadot, please contact PolkaWorld to tell your story and let more people understand the development of Polkadot ecology.

YouHave you ever been curious about what it’s like to use the most cutting-edge blockchain technology to create a start-up? If you're an entrepreneur who wants to make the world a better place, the endeavor can be daunting and lonely.

The first time I met Antoine Najjarin, the founder of Speckle OS, was at the Polkadot offline meetup held in Melbourne in November 2018. Antoine demonstrated their firm vision: Speckle OS should be a direct entrance to the interconnected blockchain world.

They will use Polkadot as the underlying technology stack and contribute to the vision of Web3:

“… In this network, our identities and data belong to us Yours - Stay protected by avoiding any central authoritative system”

In this post, I’ll explore my journey with Speckle OS and 5 key lessons I’ve learned from doing it.

Journey
The founding team of Speckle OS consists of 2 members and is completely run with a beautiful vision. In March 2019, they received funding from the Web3 Foundation.

This grant helps Speckle OS financially, but more importantly, it launches Speckle OS and becomes a highly anticipated project in the Polkadot community. As a project actively promoting the Web3 vision, Speckle OS can guarantee an initial user base at launch.

Their initial users will be cryptography-savvy, but the real challenge is acquiring users who are not cryptography-savvy. Antoine believes that trust and reputation are crucial to succeed in the Web3 ecosystem:

“If people believe you are building a secure wallet and all the code is available on Github Analytics – Once you build that reputation, you can move on to regular users.”

Speckle OS will release an MVP (Minimum Available Product) before the Web3 Summit in August 2019. MVP includes support for the Polkadot testnet, Kusama network and substrate chain, and Edgeware.

Account creation, multi-account storage and trading features will also be available. Staking tokens and governance features still need to be implemented in further iterations.

Team
The Speckle OS team has now expanded to 5 people, 4 of whom are developers. In short, AnThe role of toine is to abstract everything away so that developers can focus on developing a quality product.

“Things move so fast that you can get buried very quickly. Even if you’re only focused on the cryptocurrency space, it’s sometimes hard to stay sane enough to filter through the information overload. ”

Lessons learned
When I interviewed Speckle OS, I got 5 key points:

1. Easy to code, easy to understand
Substrate is predictable, easy to learn, and easy to understand. Although there is no documentation yet, the code is very readable and comes with clear descriptions.

“Common feedback is that Polkadot JS is simpler and easier to use than any other technology stack. This is proven by the Parity development team.”

2. With Parity Minimal interaction

Due to the cleanliness of the code, Speckle OS rarely requires contacting Parity to decode how Substrate works.

3. Everyone has access to the same information
What happened during the development of Polkadot is public, and there is no private channel to obtain inside information.

“I like that Polkadot makes everything public. If you go to the watercooler website, you will see Gav and other Parity developers discussing things they are considering implementing.

All the latest developments happen in the Riot Watercooler Channel, everything just depends on whether you read these messages in time.

4. There are many talented developers
that make up the current team than Antoine thinks a lot slower. Of course, it takes patience to win over the interviewers who work at Speckle OS. They are busy releasing a very good product.

"Block here The chain space is smaller than San Francisco, New Zealand and Berlin. Sydney is big, but not the biggest. We have some really good developers here. ”

C. "Node.js Blockchain Development" pdf download and online reading, please ask for Baidu Netdisk cloud resources

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

Resource link:

Link:

Extraction code: z0rz

Book title: Node. js blockchain development

Author: Zhu Zhiwen

Douban score: 4.8

Publisher: Machinery Industry Press

Publication 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.

D. How to learn blockchain

Do you want to learn blockchain development technology or just want to understand what blockchain is? If so For the former, you can look at the codes of other blockchain projects to understand them first. If it’s the latter, you can pay attention to some good blockchain self-media. Blockchain is an emerging industry, and there are no ready-made training courses. You have to rely on your own exploration and understanding.

E. "Blockchain Project Development Guide" pdf download for online reading, please ask for Baidu Netdisk cloud resources

"Blockchain Project Development Guide" (Narayan Puru Narayan Prusty) e-book network disk download for free online reading

Resource link:

Link: https://pan..com/s/16X1h2dUsvOqdsNfJA9f0jQ Extraction code: qcqe

Book title: Blockchain Project Development Guide

Author: Narayan Prusty

Translator: Zhu Xuantong

p>

Douban score: 5.7

Publisher: Machinery Industry Press

Publishing year: 2017-12-8

Number of pages: 198< /p>

Introduction:

Blockchain is one of the most disruptive emerging information technologies in the past decade. It is establishing trust, arbitration and trust in the human transaction process in a completely new way. Record the basics. This book has 9 chapters in total. It first introduces basic concepts such as decentralized applications and DApps, and then explains popular DApps such as Bitcoin, Ethereum, and Hyperledger accordingly. Secondly, on the basis of analyzing the working principle of Ethereum, we introduce the writing method of smart contracts.And introduce the application method of web3.js. Then use the above knowledge to create specific applications such as wallet services, smart contract deployment platforms, betting apps, enterprise-level smart contracts, and alliance blockchains.

About the author:

Author: (India) Narayan Prusti Translator: Zhu Xuantong Translator: Yan Ying Translator: Dong Ning

Narayan Prusti, who created an MP3 search engine at the age of 18, is a multi-tasking developer, focusing on blockchain and JavaScript, tending to use Ethereum, Bitcoin, Super Classification, IPFS, etc. to build decentralized applications. The scalable applications he writes are widely used in startups, enterprises and government departments in India, Singapore, the United States and other countries. Narayan Prusty currently works for the Emirates National Bank’s blockchain enterprise in Dubai. He is the author of "Learning ECMAScript 6" and "Modern JavaScript Applications". Zhu Xuantong holds a master's degree from Tsinghua University and is a doctoral candidate at the Institute of Quantitative and Technical Economics of the Chinese Academy of Social Sciences, focusing on technical economics and management research. Has extensive working experience in government and international organizations. Yan Ying, Ph.D. from Fudan University, is a researcher in charge of Microsoft Research Asia and the head of Coco Blockchain China. She focuses on research on blockchain technology, big data analysis, databases and cloud computing. Dong Ning is the CEO of ChainNova, the director of the Financial Technology Research Center of the New Generation Information Technology Institute of Peking University, the former head of IT economics for IBM Greater China, and the founder of the IBM blockchain community.

F. Please download the full text of "Blockchain Project Development Guide" for free from Baidu Netdisk resources, thank you~

"Blockchain Project Development Guide" Download the latest full set of network disk pdf:
Link: https://pan..com/s/1CTlNiY9PR_FIEjiUVtJLeg

?pwd=t6y2 Extraction code: t6y2
Introduction: Blockchain It is one of the most disruptive emerging information technologies in the past decade. It is establishing the basis of trust, arbitration and recording of human transaction processes in a completely new way. This book has 9 chapters in total. It first introduces basic concepts such as decentralized applications and DApps, and then explains popular DApps such as Bitcoin, Ethereum, and Hyperledger accordingly. Secondly, based on the analysis of the working principle of Ethereum, the writing method of smart contracts is introduced, and the application method of web3.js is introduced. Then use the above knowledge to create specific applications such as wallet services, smart contract deployment platforms, betting apps, enterprise-level smart contracts, and alliance blockchains.

G. What are the blockchain technology frameworks?

The current mainstream blockchain architecture contains six levels: network layer, data layer, and consensus layer. ,excitationlayer, contract layer and application layer. The positions of the data layer and the network layer are reversed in the figure, and their main uses will be detailed in the next section.
Network layer: The essence of the blockchain network is a P2P (Peer-to-peer) network. The resources and services in the network are scattered on all nodes. The transmission of information and the implementation of services are directly between the nodes. It can be carried out in a short period of time without the intervention of intermediate links and servers. Each node both receives and generates information. The nodes synchronize information by maintaining a common blockchain. When a node creates a new block, it notifies other nodes in the form of broadcast, and other nodes receive the information. The block is then verified and a new block is created based on the block, thereby achieving the role of the entire network jointly maintaining an underlying ledger. Therefore, the network layer will involve the design of P2P network, propagation mechanism, verification mechanism, etc. Obviously, these designs can affect the confirmation speed of block information. The network layer can be used as a research direction in the scalable solution of blockchain technology;
Data layer: The underlying data of the blockchain is a block + linked list data structure, which includes data blocks, chain structures, timestamps, hash functions, Merkle trees, asymmetric encryption and other designs. Among them, data blocks and chain structures can be used as improvement directions for data layer research in the scalable solution of blockchain technology.
Consensus layer: It is the basis for highly dispersed nodes to achieve rapid consensus on the validity of block data. The main consensus mechanisms include POW (Proof Of Work) and POS (Proof of Stake). Mechanism), DPOS (Delegated Proof of Stake Delegated Proof of Stake Mechanism) and PBFT (Practical Byzantine Fault Tolerance), etc., which have always been the highlight of the scalable solutions of blockchain technology.
Incentive layer: It is what everyone often calls a mining mechanism. It is used to design a certain economic incentive model and encourage nodes to participate in the security verification of the blockchain, including the design of issuance mechanisms and distribution mechanisms, etc. This level of improvement does not seem to be directly related to blockchain scalability.
Contract layer: mainly refers to various script codes, algorithm mechanisms, smart contracts, etc. Strictly speaking, this layer is missing in the first generation of blockchains, so they can only conduct transactions and cannot be used in other fields or perform other logical processing. The emergence of the contract layer makes it possible to use blockchains in other fields. has become a reality. This part of Ethereum includes two parts: EVM (Ethereum Virtual Machine) and smart contracts. Improvements at this level seem to provide potential new directions for blockchain scalability, but there seems to be no direct connection in structure
Application layer: It is the display layer of the blockchain, including various application scenarios and cases. . For example, Ethereum uses truffle and web3-js. The application layer of the blockchain can be the mobile terminal., web side, or integrated into the existing server, using the current business server as the application layer. Improvements at this level seem to provide potential new directions for blockchain scalability, but there does not seem to be a direct connection in structure.
The Xueshuo Innovation Blockchain Technology Workstation under Lianqiao Education Online is the only approved "Blockchain Technology Professional" pilot of the "Smart Learning Workshop 2020- Xueshuo Innovation Workstation" launched by the School Planning and Construction Development Center of the Ministry of Education of China. workstation. The professional base is based on providing students with diversified growth paths, promoting the reform of the training model integrating professional degree research, production, and research, and building an applied and compound talent training system.

H. How to develop blockchain How to develop blockchain

Go is an open source programming language that makes it easy to construct simple, reliable and efficient software. 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 pointed out that the demand for high-paying positions is mainly 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, Senior Blockchain Technology Expert, Brothers Blockchain AcademyThe dean graduated from Tsinghua University and served as a Google algorithm engineer, the world's most valuable expert in the Microsoft blockchain field, and a gold medal lecturer at the Microsoft Tech.Ed Conference. 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
/>The fourth phase: Hyperledger and Node.js 2 weeks
The fifth phase: Bitcoin & EOS 4 weeks
The sixth phase: Comprehensive project practice

I. Area 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, which can be used without sacrificing application performance. Reduce the complexity of your code. 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++ runs on a variety of platforms, such as Windows, MAC operating systems, 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 the execution wordsCode saving, 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.