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Questions - ethereum

Revert throws "missing revert data" in inherited method

I've got a base contract which I use to add functionality to other contracts by inheritance. For some reason, neither revert nor require are working as expected when the method is called by a descende...
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GGizmos

ethereum

solidity

Votes: 0

Answers: 1

Latest Answer

require takes a boolean, like so: require(condition, error message); So your check should look like this: require(attrExists, "no such attrib"); But your problem is probably with the coll....
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Pandapip1

Is it possible to connect someone else's MetaMask account?

I've been told that signing a message on a Dapp is the only way to prove that you actually own the account you are connecting with (i.e., simply connecting your wallet isn't enough because someone cou...
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Dimitri Borgers

ethereum

metamask

Votes: 0

Answers: 1

Latest Answer

Can a nefarious actor somehow edit connect() and pass in a wallet address they don't own? You can pass whatever data from the client to the backend or blockchain. If you do not sign the data there i...
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Mikko Ohtamaa

How to verify that a transaction hash is included in a block's transactionsRoot on chain?

I am doing some research to see how you would verify that a transaction hash is included in the transactionsRoot for a specific block in Ethereum. The challenging part for this is that I am trying to ...
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0xKitsune

hash

ethereum

merkle-tree

patricia-trie

Votes: 0

Answers: 1

Latest Answer

This blog post explains merkle trie with examples. It explains how transaction root is computed and how proof is generated and verified. https://medium.com/@chiqing/merkle-patricia-trie-explained-ae3a...
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Leo Zhang

How can I implement a lazy-minting smart contract that doesn't actually mint NFTs?

This is my first experience writing a smart contract, so I am still trying to navigate how this all works. I have a smart contract on the Rinkeby test network that currently works as expected when dep...
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Jeramy Usher

javascript

ethereum

smartcontracts

nft

Votes: 0

Answers: 2

Latest Answer

No, that is not possible for now. When there is a website you go to mint NFTs for yourself, the website is doing the following: You click mint and then the NFT is minted on the contract to your accou...
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caiosa

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