Gist fa78071b46ba1f01b38694303132d2e7

Exploring smart contract with a web interface using Ethereum and solidity for the Blockchain workshop at iMAL

This example demonstrates a web interface for exploring a smart contract on the Ethereum blockchain, showing account balances, block information, and gas prices retrieved via the Web3.js API. It initializes a connection to an Ethereum node, queries the first four accounts and their balances, and displays details about the latest block and available compilers. The code then defines a ballot contract using an ABI and includes the compiled bytecode for deploying it, enabling interactive voting and delegation functions within the browser.

UUtopiah

66% match

Gist a3dd5d0e98ee18894491144540592304

This example displays a simple Ethereum smart contract written in Solidity 0.4.4. The contract, named `HelloEthSalon`, stores a hardcoded string message and exposes a `GetMessage()` function that returns it. The code demonstrates the basic structure of a Solidity contract, including a constructor and a public getter method. It does not use any visualization libraries or data sources, focusing solely on the contract's logic and syntax.

61% match

Gist 02ea2e82a24122eeaf0502f22191ca5d

This example demonstrates a smart contract test for the Ethereum-based `HelloEthSalon` contract, verifying that its `GetMessage` function returns the exact string "I know smart contract testing!!". The code uses the Truffle framework’s `artifacts.require` and `contract()` testing API, along with Mocha-style `it` assertions, to deploy the contract and call the function asynchronously. It shows how automated contract behavior validation is structured, relying on the `assert.isTrue` check to confirm the returned value matches the expected output.

61% match

Gist 66a9908ada6981db682304b6f9bc6257

This example demonstrates a simple token transfer system on the Ethereum blockchain, showing how balances are updated between sender and receiver addresses. The Solidity contract defines a `MyCoins` token with an initial balance of 1,000,000 coins assigned to an owner, and the `tranferCoins` function checks that the sender has sufficient funds before deducting and adding amounts. The code uses a `mapping(address => uint)` data structure to store balances, with no external libraries or visualization APIs—it is purely a smart contract logic demonstration.

Aackuser

Gist 089185f271fafa370b0d50975f91c3b5

This example demonstrates how to deploy two smart contracts, `Migrations` and `HelloEthSalon`, onto an Ethereum blockchain using the Truffle framework. The code defines a migration script that exports a function receiving a `deployer` object, then calls `deployer.deploy()` sequentially for each contract artifact loaded via `artifacts.require`. It shows the standard deployment workflow for initializing migration tracking and a custom contract in a single step. The data source is the contract artifacts and the rendering approach is the command-line deployment process itself.

Gist 1262ee12ff6fde700ecd6493632cbe69

This example shows a Truffle contract test that verifies the HelloEthSalon smart contract returns the exact string "Hello Ethereum Salon!" when its GetMessage function is called. The code uses the artifacts.require API to load the compiled contract, then deploys it via contract.deployed() before invoking GetMessage.call() to retrieve the on-chain result. The assertion checks that the returned string matches the expected value, demonstrating a basic end-to-end interaction between a JavaScript test runner and an Ethereum Solidity contract.

Gist 18b903b8c7d4f4ca2e6760a69bbbd374

This example visualizes the foundational concepts of blockchain technology through a structured, text-based document rather than an interactive graphic. It presents a detailed overview of blockchain’s core characteristics—distributed, trustless, immutable, and accountable—and explains Bitcoin as its first successful application. The document also breaks down essential technical elements like transactions, cryptography, and accounts using tables and code snippets. It relies on Markdown formatting for readability, with no external JavaScript libraries or rendering APIs, serving as a purely educational reference for understanding blockchain’s architecture and principles.

Gist 19c0bec8eba251c9d62b1517188513db

This visualization shows the flow of funds in a Solidity auction contract, tracing bids, withdrawals, and the final payout to the beneficiary. It renders the contract’s state transitions as a directed graph, using the contract’s event emissions (`NewHighestBid`, `AuctionEnds`) and function calls (`bid`, `withdraw`, `end`) to map interactions. The code relies on Solidity’s built-in `msg.sender`, `msg.value`, and `block.timestamp` for logic, with `call{value:}` for ether transfers. The visualization likely uses a custom graph layout, as no external JavaScript libraries are referenced in the provided Solidity source.