Mansoor Buttmansoor-eth.hashnode.dev·Nov 19, 2024Storing Static Type in Solidity's StorageLet’s first have a look at the Code contract Demo{ uint256 a 1234 // slot 0 uint8 b = 0x12; // slot 1 uint8[6] c = [1,2,3,4,5,6]; // line 4 (slot 2) uint256[2] d = [10,20] // line 5 slot(3 & 4) function getSlotvalue(uint slot) public...DiscussMastering the EVMSolidity
Gurnoor SinghforWriting Your First Smart Contractwriting-your-first-smart-contract.hashnode.dev·Nov 19, 2024Remix and Writing Your First Smart ContractIntroduction to Solidity and Remix .sol File Extension: Files with the .sol extension are Solidity contracts. SPDX License Identifier (// SPDX-License-Identifier: MIT): Although not required by the compiler, including this identifier is recommended...DiscussBlockchain
Mansoor Buttmansoor-eth.hashnode.dev·Nov 18, 2024Storage in Structs (Solidity)Lets first look at the code contract A { struct SomeStruct{ uint256 val1; uint16 val2; bool val3; } uint256 a = 3; // slot 0 uint256 b = 0x555 // slot 1 SomeStruct structVar = SomeStruct(0x2345,5,true) // Line 10 function getSlotVal(u...DiscussSolidity
Samarth Saxenaawesamarth.hashnode.dev·Nov 15, 2024Mainnet Forking in FoundryIntroduction When developing smart contracts, we often need to interact with contracts that have already been deployed. It would not be a smart decision to deploy the contract and test it on Mainnet using real ETH. But, thankfully for us, there is a ...DiscussFoundry ModeBlockchain
Harendra Barotharrybdevops.hashnode.dev·Nov 15, 2024Automating Apache2 Installation and Static Website Deployment on EC2 Using AnsibleIn this blog post, I’ll walk you through how I automated the process of installing Apache2 and deploying a static website on an EC2 instance using Ansible. This task is an essential part of cloud infrastructure automation and plays a key role in impr...Discuss·1 likeDevops
Harendra Barotharrybdevops.hashnode.dev·Nov 12, 2024A Day in the Life of a DevOps Engineer: Real-Time Challenges and SolutionsMeet Aryan, a skilled DevOps engineer working at a mid-sized tech firm called TechNova. Each day for Aryan starts early, with a strong cup of coffee as he settles into his home workspace. The soft hum of his dual-monitor setup fills the room as he ch...Discuss·5 likesDevops
Joshua Obafemijorshimayor.hashnode.dev·Nov 10, 2024Solidity Error Handling: require, assert, and revertError handling lies at the core of writing secure and efficient smart contracts in Solidity. Whether you’re working on DeFi protocols, NFT marketplaces, or dApps, knowing how and when to use “require”, “assert”, and “revert” is crucial for preventing...DiscussBlockchain
Daciandacian.me·Nov 10, 2024Find Highs Before External Auditors Using Invariant Fuzz TestingMany high severity findings found during private audits by external auditors could have been found by the protocol developers themselves using invariant fuzz testing prior to engaging external auditors. While this doesn’t require developing an “attac...Discuss·14 likes·836 readsDeep DivesEthereum
Ayomide Ayanwolablog.bloombyte.dev·Nov 7, 2024Unlocking the Web using HTTPS Outcalls on ICPThe world of blockchain and smart contracts has long been hampered by the limitations of operating in a closed, self-contained environment. Traditional blockchain networks have struggled to connect their on-chain applications and logic to the wealth ...Discussicp
Kehinde Sodiqdevadejare.hashnode.dev·Nov 7, 2024Step-by-Step Guide to Developing an NFT Smart Contract (ERC721) Using AlchemyINTRODUCTION: Non-fungible tokens (NFTs) have revolutionized how digital assets are created, owned, and traded. ERC721, the most common standard for NFTs on the Ethereum blockchain, provides a framework for creating unique, indivisible tokens. In thi...Discuss·1 likeNFT
