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Web3.py cannot connect to Westend Asset Hub #26

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nhussein11 opened this issue Jan 22, 2025 · 3 comments · Fixed by paritytech/polkadot-sdk#7580
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Web3.py cannot connect to Westend Asset Hub #26

nhussein11 opened this issue Jan 22, 2025 · 3 comments · Fixed by paritytech/polkadot-sdk#7580
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@nprt
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good first issue Good for newcomers

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@nhussein11
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I am unable to connect to the Westend Asset Hub RPC endpoint using Web3.py. The connection check (web3.is_connected()) consistently returns False.

Steps to Reproduce:

  1. Set up a virtual environment and install Web3.py:
python -m venv venv
source venv/bin/activate
pip install web3
  1. Use the following Python script to connect to the RPC:
from web3 import Web3

web3 = Web3(Web3.HTTPProvider("https://westend-asset-hub-eth-rpc.polkadot.io"))

print("Connected to network", web3.is_connected())
  1. Execute the script with Python 3.9.
@kapetan3sid kapetan3sid mentioned this issue Jan 24, 2025
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@pgherveou pgherveou self-assigned this Feb 13, 2025
@pgherveou
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Thanks for the report,
We don't support web3_clientVersion rpc method should be an easy fix

@pgherveou
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For reference this just call

curl http://localhost:8545 -H 'Content-Type: application/json' -X POST  -d '{"jsonrpc": "2.0", "method": "web3_clientVersion", "params": [], "id": 0}'

On geth the response is

{
  "jsonrpc": "2.0",
  "id": 0,
  "result": "Geth/v1.15.0-stable-756cca7c/linux-amd64/go1.23.6"
}

@pgherveou pgherveou removed their assignment Feb 13, 2025
@pgherveou pgherveou added the good first issue Good for newcomers label Feb 13, 2025
@pgherveou
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pgherveou commented Feb 13, 2025 •
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This can be easily added here
https://github.com/paritytech/polkadot-sdk/blob/master/substrate/frame/revive/rpc/src/apis/health_api.rs?plain=1#L29-L31

Maybe use a technique similar to what we do in Revive here to pull the commit sha

https://github.com/paritytech/revive/blob/main/crates/solidity/build.rs?plain=1#L1-L7

@nprt nprt self-assigned this Feb 14, 2025
@pgherveou pgherveou mentioned this issue Feb 14, 2025
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@nprt nprt mentioned this issue Feb 14, 2025
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github-merge-queue bot pushed a commit to paritytech/polkadot-sdk that referenced this issue Feb 17, 2025
@nprt @github-actions
implement web3_clientVersion (#7580)
d61032b 
Implements the `web3_clientVersion` method. This is a common requirement
for external Ethereum libraries when querying a client.

Fixes paritytech/contract-issues#26.

---------

Co-authored-by: cmd[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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implement web3_clientVersion nprt/polkadot-sdk
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@pgherveou @nhussein11 @nprt