Blockchain Development Training | Blockchain Technology | Blockchain Explained | Edureka Rewind

Education

Step 1: Detailed Article in Markdown Syntax

Introduction

Welcome to the session on blockchain development training! Let's dive into today's agenda. We will cover:

  1. Introduction to Blockchain and its foundational concepts.
  2. Blockchain-related employment opportunities and required skills.
  3. Focus on Smart Contracts and Smart Contract Development.
  4. Examples of fascinating smart contracts and decentralized applications.
  5. A hands-on coding session to create a smart contract simulating Kickstarter.

Introduction to Blockchain Technology

Blockchain is a fundamental technology instrumental in the operation of cryptocurrencies. It can be described as an immutable record of who owns what, functioning as a decentralized and distributed database of ledgers synchronized across a peer-to-peer network via a consensus algorithm.

Foundational Concepts of Blockchain

  • Distributed and Decentralized Networks:

    • Different from centralized networks, decentralized networks have no single point of control, enhancing security and reducing risks associated with attacks like DDOS.

  • Shared Ledger:

    • This ledger logs transactions across the entire network. Every peer sees the same ledger, maintaining consistency and a single source of truth.

  • Consensus Algorithm:

    • This algorithm ensures that all transactions are valid. Various consensus algorithms exist, including Proof of Work (PoW), Proof of Stake (PoS), Proof of Elapsed Time (PoET), Proof of Capacity, and Proof of Storage.

  • Cryptography:

    • Cryptography secures the blockchain through techniques like public-private key cryptography, ensuring data integrity and security.

Employment Opportunities and Technical Skills

Blockchain technology has generated numerous job opportunities:

  • Blockchain Architect:

    • Designs blockchain architecture and protocols.

  • Blockchain Software Developer:

    • Develops blockchain-based applications.

  • Blockchain Consultant:

    • Advises organizations on how to integrate blockchain solutions.

To become a blockchain developer, one must understand cryptography, data structures, blockchain architecture, basic web development, and especially smart contract development.

What Are Smart Contracts?

Smart contracts are code pieces that control blockchain transactions. They are prevalent on platforms like:

  • Ethereum:

    • First to implement smart contracts and supports robust peer-to-peer networks.

  • Hyperledger:

    • Provides blockchain solutions for private and confidential transactions in industries.

  • IOTA:

    • Utilizes tangle technology for the Internet of Things (IoT).

  • Stellar:

    • Connects banks, payment systems, and people for seamless money transfers.

Examples of Decentralized Applications

  • Lazo:

    • A decentralized taxi service, eliminating intermediaries like Uber and Ola.

  • Leroy:

    • Decentralized Twitter, protecting online identity and data.

  • Slockit:

    • Combines blockchain with IoT for automated smart apartments and objects.

Hands-On Coding Session: Creating a Smart Contract

We will simulate Kickstarter's decentralization using Ethereum's Solidity language and Remix browser. The goal is to create a contract that:

  • Accepts project proposals with entry fees.
  • Allows users to vote for projects by funding them.
  • Distributes funds to the winning project after the campaign deadline.

Contract Details

The contract involves:

  • State Variables:
    • To store parameters like entry fee, deadlines, etc.
  • Struct for Projects:
    • To structure data about each project.
  • Mappings and Arrays:
    • To store project information and addresses.
  • Functions:
    • For initialization, submitting projects, supporting projects, retrieving project info, and closing the contract.

Conclusion

Blockchain is an exciting and burgeoning field with vast career opportunities. Through this Edureka course, you can gain structured and modular learning to become proficient in blockchain and smart contract development.

Step 2: Keywords

Keywords

  • Blockchain
  • Cryptography
  • Smart Contracts
  • Decentralized Applications
  • Ethereum
  • Hyperledger
  • IOTA
  • Stellar
  • Solidity
  • Remix Browser

Step 3: FAQ

FAQ

Q1: What is a blockchain? A: Blockchain is an immutable, decentralized, and distributed database of ledgers synchronized across a peer-to-peer network via consensus algorithms.

Q2: What are the four main concepts of blockchain technology? A: Distributed and decentralized networks, shared ledger, consensus algorithm, and cryptography.

Q3: What roles are available in blockchain-related job opportunities? A: Blockchain Architect, Blockchain Software Developer, and Blockchain Consultant.

Q4: What skills are required to become a blockchain developer? A: Understanding of cryptography, data structures, blockchain architecture, basic web development, and smart contract development.

Q5: What is a smart contract? A: Smart contracts are pieces of code that control blockchain transactions, widely used on platforms like Ethereum, Hyperledger, IOTA, and Stellar.

Q6: Can you provide examples of decentralized applications? A: Lazo (decentralized taxi service), Leroy (decentralized Twitter), and Slockit (combining blockchain with IoT for automated smart apartments).

Q7: What tools and languages are used to develop smart contracts? A: Ethereum's Solidity language and Remix browser are commonly used for smart contract development.