القائمة
Get the latest block number for a blockchain using Web3.py and JSON-RPC environment variables
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| name | get-block-number |
| description | Get the latest block number for a blockchain using Web3.py and JSON-RPC environment variables |
This skill retrieves the latest block number from a blockchain using the configured JSON-RPC environment variables and Web3.py.
ALWAYS USE SCRIPT. NEVER RELY ON THE HISTORICAL INFORMATION OR GUESS.
Generate and run a Python script to fetch the block number. Run it Python commadn line inline, don't write a new file.
import os
from web3 import Web3
from eth_defi.provider.multi_provider import create_multi_provider_web3
# Replace {CHAIN} with the uppercase chain name
json_rpc_url = os.environ.get("JSON_RPC_{CHAIN}")
if not json_rpc_url:
raise ValueError("JSON_RPC_{CHAIN} environment variable not set")
web3 = create_multi_provider_web3(json_rpc_url)
block_number = web3.eth.block_number
print(f"Latest block number: {block_number}")
Run the script with:
source .local-test.env && poetry run python <script_path>
Return the block number to the user in a clear format, e.g.:
Chain: Ethereum
Latest block number: 19,234,567
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