The Metana Blog
Meet our authors →Guides, tutorials and explainers on Smart Contracts from Metana's instructors and editorial team.
Smart ContractsFlash loans, a cornerstone of DeFi (Decentralized Finance), offer exciting liquidity possibilities. But in the wrong hands, they can become a developer's nightmare – fueling flash loan attacks. These attacks exploit…
Smart ContractsIn the realm of Web3, the concept of decentralization is not just a buzzword—it's a fundamental principle. Decentralized Autonomous Organizations (DAOs) epitomize this ethos, where token holders collectively make…
Smart ContractsIn the world of blockchain and smart contracts, security is paramount. However, there’s a fine line between ensuring security and creating rigid, inflexible systems. One common pitfall in smart contract design is…
Smart ContractsIn the dynamic and evolving landscape of Web3, randomness plays a crucial role in ensuring the fairness and unpredictability of various applications. From provably fair gaming to the generation of unique tokens, the…
Smart ContractsT L;DR Improper input validation in smart contracts can lead to severe security vulnerabilities and exploits. Common risks include unauthorized access, infinite loops, and drained contract balances. Best practices:…
Smart ContractsIn a traditional transaction, one party sends funds to another in exchange for goods or services. This exchange typically follows a well-defined sequence of steps. However, in the realm of smart contracts,…
BlockchainTL;DR A Decentralized Exchange (DEX) allows peer-to-peer trading without intermediaries. To build a basic DEX using Solidity , key components include: Liquidity Pools : Users contribute tokens, enabling trades. AMM…
BlockchainDiscover how to create an ERC-20 token with Solidity step-by-step—from setting up your environment to writing, testing, and deploying on Ethereum. Whether you’re a beginner or seasoned dev, this guide makes token develop
Smart ContractsSmart contracts, the self-executing code on blockchains, have revolutionized various industries. From decentralized finance (DeFi) to supply chain management, their potential is undeniable. However, with great power…
BlockchainThe world of blockchain technology is full of new and exciting ideas. Blockchains are great because they are very secure and can't be easily changed, but they don't have a lot of space to store information. That's where…
BlockchainBlockchain technology is really innovative, and smart contracts are a big part of that. Smart contracts are like automatic agreements that run themselves, but they have a problem: they can't interact with the outside…
BlockchainSolidity, the programming language for Ethereum smart contracts, excels at automating tasks and enforcing complex logic within the secure confines of the blockchain. However, smart contracts by themselves operate in a…
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