Web3 projects often focus on smart contracts and frontends, but the backend is just as critical and just as vulnerable. If you’re exposing APIs, you need to think carefully about authentication and authorization. Here’s how to do it right.Wallet-Based AuthenticationInstead of usernames and passwords, Web3 applications typically use wallets like MetaMask for login. The standard flow should look like this:User connects their wallet.The backend generates a random challenge string.The user signs ...

Web3 projects often focus on smart contracts and frontends, but the backend is just as critical and just as vulnerable. If you’re exposing APIs, you need to think carefully about authentication and authorization. Here’s how to do it right.Wallet-Based AuthenticationInstead of usernames and passwords, Web3 applications typically use wallets like MetaMask for login. The standard flow should look like this:User connects their wallet.The backend generates a random challenge string.The user signs ...