The Metana Blog
Meet our authors →Guides, tutorials and explainers on Blockchain from Metana's instructors and editorial team.
BlockchainTL;DR Solidity contracts interact with other contracts using high-level calls (via interfaces) or low-level calls ( call , delegatecall , staticcall ). High-level calls are safer and easier to use, automatically…
BlockchainImagine you walk into a fancy restaurant, eager to try their new menu. But before you can even glance at the dishes, the waiter informs you that you need a special token to order – a token you need to buy with actual…
BlockchainImagine a super secure way to store information and run programs on the internet, like a giant digital record keeper everyone can trust. That's what blockchains are. But right now, blockchains struggle with two things:…
BlockchainDecentralized Autonomous Organizations (DAOs) are reshaping collaboration, but managing their treasuries requires specialized knowledge. This guide will take you through the secrets of effective DAO treasury management,…
BlockchainBlockchains, the revolutionary technology underpinning cryptocurrencies and decentralized applications (dApps), have a fundamental challenge: SCALABILITY . As these networks gain traction and user adoption increases,…
BlockchainBlockchain, the underpinning system for recording information, has become more than just the basis for cryptocurrency. Blockchain is a system of recording information in such a manner that it makes information almost…
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
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…
BlockchainTL;DR: Solidity is essential for building robust NFT marketplaces on the Ethereum blockchain. Key marketplace features include NFT listing, buying/selling, user management, security measures, and search functionalities.…
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