The Metana Blog
Meet our authors →Guides, tutorials and explainers on Solidity from Metana's instructors and editorial team.
Smart ContractsDecentralization is the cornerstone of Web3, aiming to empower users and reduce reliance on centralized control. However, a common pitfall in Web3 development contradicts this very principle: Overpowered Admins .…
Smart ContractsException handling is a crucial aspect of any programming language, and Web3 development with Solidity is no exception. The try-catch block offers a mechanism to gracefully handle errors and unexpected situations within…
Smart ContractsWeb3 thrives on innovation, but unlike traditional software, upgrades to deployed smart contracts can be a tricky affair. The very nature of blockchain immutability presents a challenge: Upgrade Bugs . Let's explore the…
Smart ContractsWeb3 thrives on the power of smart contracts – self-executing programs that automate tasks on the blockchain. However, a seemingly minor oversight – unchecked return values – can have major consequences. Let's explore…
Smart ContractsDecentralized Finance (DeFi) has revolutionized financial services, offering lending and staking opportunities without the need for intermediaries. However, these protocols are not without their weaknesses. Lending and…
Smart ContractsThe world of Web3 is brimming with promises of high returns and revolutionary projects, driving a wave of excitement among investors and developers alike. Yet, amid this innovation lies a sinister threat that can…
Smart ContractsWeb3 thrives on user empowerment and the ease of sending and receiving cryptocurrency. However, a growing threat lurks in the shadows: Address Poisoning . This malicious tactic exploits human error and vulnerabilities…
Smart ContractsWeb3 thrives on the immutability of the blockchain – a guarantee that once data is written, it cannot be altered or erased. This permanence is a core strength, fostering trust and transparency. However, for developers,…
Smart ContractsSolidity, the preeminent language for writing smart contracts on the Ethereum blockchain, is a powerful tool. But like any powerful tool, it has its quirks and hidden complexities. These can lead to subtle errors and…
Smart ContractsWeb3 is ushering in a new era of financial applications, blending traditional finance (TradFi) with decentralized finance (DeFi). Many projects straddle this line, requiring a unique accounting approach known as Mixed…
Smart ContractsWeb3 applications represent the cutting edge of decentralization, but they do not operate in isolation. These applications require real-world data to function effectively, and this is where oracles come into play.…
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…
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