In this blog , we will learn the creation of contract users on Ethereum. To create a user for our published contract, we will create another MyEtherWallet client attached to the same Ganache Blockchain that you have been using in the previous steps. Go to the MyEtherWallet screen and create a new wallet.
Click on the contracts menu and select the “Interact with Contract” option as in the earlier case. Note that this new user is going to simply interact with the already published contract and not deploying his own contract. Specify the contract address and the ABI that you used in the earlier case.

Now, click Access button and invoke send method. When asked, input some value say 100 ETH to be sent. Submit the transaction. Upon submission, the following screen will appear.

To attach this new client to our Ganache Blockchain, go to Ganache Console. Click on the keys icon of account # 2 as shown in the following screenshot −

You will get the private key for account # 2.

Copy the key that you receive and use it in your newly created wallet as shown here −

Click on the Unlock button to attach the wallet.
When the wallet is successfully unlocked, write the desired send transaction.

Generate the transaction by clicking on the “Generate Transaction” button.

Make the transaction and wait for some time for it to reflect in the Blockchain. Now, execute “getAmount”, the amount shown should be 200 now.

Execute “getBalance”. The value field should now be 800.

Examine the transaction log to see the various transactions performed by different users.

So, this brings us to the end of blog. This Tecklearn ‘Ethereum – Creating Contract Users’ blog helps you with commonly asked questions if you are looking out for a job in BlockChain or Ethereum. If you wish to learn BlockChain or Ethereum and build a career in BlockChain domain, then check out our interactive, Blockchain and Ethereum Developer Training, that comes with 24*7 support to guide you throughout your learning period. Please find the link for course details:

https://www.tecklearn.com/course/blockchain-and-ethereum-certification-training/

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Tecklearn’s Blockchain and Ethereum Certification Training course in the blockchain technology that covers essential concepts like Blockchain programming, Ethereum, Solidity, Digital ledger types, Smart Contracts, Multichain, Bitcoin mining, Cryptocurrency, etc. The course provides an overview of the structure and mechanism of Blockchain. You will learn about the Ethereum ecosystem, how smart contracts are developed using Solidity and how to deploy a business network using Hyperledger Compose.

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What you will Learn in this Course?

Introduction and origin of Blockchain

• How does our current financial system work?
• What can be the possible solution
• What is a distributed system
• What is Blockchain
• How does a Blockchain work
• Components of Blockchain
• Business network
• Consensus, Provenances, immutability and finality

Cryptocurrency and Blockchain

• Distributed system
• Distributed Ledger technology
• Global Payments
• Why BlockChain
• BlockChain and use case needs
• Requirements of blockchain for business
• BlockChain benefits
• Types of BlockChain
• Hands on

Bitcoin Platform

• What is Bitcoin?
• Why use Bitcoins?
• Bitcoin Ecosystem
• Structure of a Bitcoin Transaction
• Merkel Trees
• Scripting language in Bitcoin
• Applications of Bitcoin script
• Nodes in a Bitcoin Network
• Bitcoin Economics
• What is Bitcoin Mining?
• Types of Mining
• Mining and Consensus
• Hands On

Introduction to Ethereum

• What is Ethereum?
• Ethereum Layers
• Introducing Smart Contracts
• Cryptocurrency in Ethereum
• Mining in Ethereum
• Consensus Mechanism
• Platform Functions in Ethereum
• Technologies that support Ethereum
• Ethereum Programming Language
• Components for the development of Ethereum DApps
• Editors and tools
• Frontend Development
• Ethereum Test Networks
• ERC Tokens
• Hands On

Solidity

• Introducing Solidity
• Sample Code, Layout of Source File
• Structure of a Contract
• State Variables, Functions Types, Reference Types
• Special Variables and Functions, Expressions and Control Structures
• Function Calls, Error Handling
• Visibility for Functions and State Variables
• Inheritance, Constructors
• Importing Smart Contracts
• Gas Limit and Loops
• Sending and Receiving Ether
• Recommendations
• Contract ABI
• Setting up the development environment and Deploying DApp
• Hands On

Hyperledger

• Introduction to Hyperledger
• Hyperledger architecture
• Hyperledger Fabric V1 Architecture
• Consensus
• Hyperledger API
• Hyperledger Application Model
• Hyperledger project and tools
• Network Topology
• Exploring Hyperledger frameworks
• Business Network Deployment on Hyperledger Composer Playground
• Sample Transaction
• Service invoices
• Hands On

Hyperledger Composer

• Development Environment using Composer
• Developing business networks
• Testing business networks
• Introduction to Hyperledger Fabric
• Hyperledger Fabric Model
• Ways to create Hyperledger Fabric Blockchain Network
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Create and Deploy Your Private Blockchain On Multichain

• What Is MultiChain
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Blockchain Use Cases

• Potential use cases in Blockchain
• BlockChain project

Got a question for us? Please mention it in the comments section and we will get back to you.

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