Can I use web3 to retrieve token information such as symbol and total supply similar to the etherscan API pro endpoint tokeninformation by providing the contract address?
I'm interested in determining whether the addresses I collect are tokens or regular contracts.
If you're working with token contracts like ERC-20 or ERC-721, you can input the corresponding ABI JSON interface into your web3 instance to access contract data and call functions. Check if these functions return a value or encounter an error.
For more information, visit:
const myContract = new Contract(tokenInterface, contractAddress);
try {
const name = await myContract.methods.name().call();
} catch (error) {
// The contract may not have the 'name' function or public property
}
Note that certain token standards like ERC-721 may not mandate the presence of 'name' and 'symbol' fields within the contract.
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