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Questions - metamask

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

RPC call with Metamask

I want to create an RPC call (study purpose) from my app using metamask. My method on my contract is: function sayHelloMyName(string memory _name) external pure returns (string memory) { ...
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foo_bar

ethereum

rpc

web3js

json-rpc

metamask

Votes: 0

Answers: 1

Latest Answer

Solidity string is encoded as a dynamic-length array of bytes including the first 32byte slot pointing to the location of the array beginning and the second 32byte slot containing the length of the st...
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Petr Hejda

TypeError: Cannot read properties of undefined (reading 'map') while setting up MetaMask to display NFT

I keep getting this error when I run my code Uncaught TypeError: Cannot read properties of undefined (reading 'map') I am tring to set up a Metamask which displays the users NFTS that they have purcha...
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Keemo

javascript

reactjs

metamask

Votes: 0

Answers: 2

Latest Answer

You are missing the initial value here, const [nfts, setNfts] = useState([]); You must use the default value while using the useState()hook. If you want to apply array.map() method on state value the...
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nurmdrafi

How to persist data in memory after closing popup extension

I'm building a chrome extension, and I'd like to have some sensitive data stored in memory (not disk) while the user has their browser open. The data should persist in the chrome extension even if the...
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now_world

google-chrome-extension

firefox-addon-webextensions

metamask

browser-extension

chrome-extension-manifest-v3

Votes: 0

Answers: 0

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