Hey everyone, I’m working on a Python project and I’m stuck. I want to create a script that can take an Ethereum address (starting with 0x) and return the balances of all ERC-20 tokens and NFTs associated with it.
I’ve managed to get the ETH balance, but I can’t figure out how to fetch all the other token balances. I’m using web3.py for this.
Here’s what I’m trying to achieve:
def get_all_balances(address):
# Some magic code here
return total_balance
wallet = '0x1234...abcd'
result = get_all_balances(wallet)
print(f'Total value: {result}')
Can anyone help me with this? I’d really appreciate some guidance on how to query all token balances and NFTs for a given address. Thanks in advance!
hey jade75, try call token abis for erc-20, and poke around for erc-721/1155 for nfts. etherscan or the graph might help speedup your query. good luck!
hey there jade75! i’ve been tinkering with similar stuff lately. have you looked into using multicall contracts? they can help you batch those token queries and save a ton of time. also, for NFTs, you might wanna check out OpenSea’s API - it’s pretty sweet for grabbing NFT data across different collections.
btw, how are you planning to handle the different token decimals? that can be a real headache when you’re trying to calculate total value. oh, and don’t forget about those pesky gas fees if you’re making a bunch of calls!
what’s the end goal for your project? sounds pretty interesting!
For fetching token and NFT balances, you’ll need to interact with specific contract ABIs. Start by querying popular token contract addresses using web3.py. For a comprehensive approach, consider integrating with Etherscan’s API or The Graph protocol. These services can provide indexed data, significantly reducing query time.
Remember to handle rate limits and potential timeouts when making multiple contract calls. You might also want to implement caching to improve performance for frequently queried addresses. Lastly, be aware that some tokens or NFTs might use non-standard implementations, which could require custom handling in your code.