get-block-number
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ChineseGet latest block number
获取最新区块号
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.
本技能使用已配置的JSON-RPC环境变量和Web3.py从区块链中检索最新区块号。
始终使用脚本。切勿依赖历史信息或猜测。
Required inputs
必要输入
- Chain name: The blockchain to query (e.g., Ethereum, Arbitrum, Base, Polygon)
- 链名称：要查询的区块链（例如：Ethereum、Arbitrum、Base、Polygon）
Running the script
运行脚本
Generate and run a Python script to fetch the block number.
Run it Python commadn line inline, don't write a new file.
python
import os
from web3 import Web3
from eth_defi.provider.multi_provider import create_multi_provider_web3生成并运行Python脚本来获取区块号。在Python命令行中直接运行，无需写入新文件。
python
import os
from web3 import Web3
from eth_defi.provider.multi_provider import create_multi_provider_web3Replace {CHAIN} with the uppercase chain name
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:
```shell
source .local-test.env && poetry run python <script_path>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}")
运行脚本的命令：
```shell
source .local-test.env && poetry run python <script_path>Display output
显示输出
Return the block number to the user in a clear format, e.g.:
Chain: Ethereum
Latest block number: 19,234,567以清晰的格式向用户返回区块号，例如：
Chain: Ethereum
Latest block number: 19,234,567