/eth_events_nethermind

Primary LanguageTypeScript

This repository demonstrates a problem I have with Nethermind's eth_getLogs-implementation (Github issue: NethermindEth/nethermind#2868).

The code looks for the following event on the xDai chain:

 {
  "address": "0x29b9a7fBb8995b2423a71cC17cf9810798F6C543",
  "blockHash": "0x5f2c487b4c06acdeb3a44f7f0ee1a80692feb823e47b5dd3d7220b3884d30ed3",
  "blockNumber": 12543096,
  "logIndex": 2,
  "removed": false,
  "transactionHash": "0xd0e1999f70c5e1dbb4892af3f01c5fb33f282eee850b831da516cb81c7428952",
  "transactionIndex": 2,
  "transactionLogIndex": "0x2",
  "type": "mined",
  "id": "log_565f4305",
  "returnValues": {
    "0": "0xDE374ece6fA50e781E81Aac78e811b33D16912c7",
    "1": "0x6b35C6Da733836BE97ceD8627C3747824450926b",
    "user": "0xDE374ece6fA50e781E81Aac78e811b33D16912c7",
    "token": "0x6b35C6Da733836BE97ceD8627C3747824450926b"
  },
  "event": "Signup",
  "signature": "0x358ba8f768af134eb5af120e9a61dc1ef29b29f597f047b555fc3675064a0342",
  "raw": {
    "data": "0x0000000000000000000000006b35c6da733836be97ced8627c3747824450926b",
    "topics": [
      "0x358ba8f768af134eb5af120e9a61dc1ef29b29f597f047b555fc3675064a0342",
      "0x000000000000000000000000de374ece6fa50e781e81aac78e811b33d16912c7"
    ]
  }
}

Run Nethermind:

./Nethermind.Runner --config configs/xdai.cfg --Init.MemoryHint 4000000000 --Init.WebSocketsEnabled true --JsonRpc.WebSocketsPort 8545 --JsonRpc.Enabled true

Run (in browser):

npm i
npm run build
firefox dist/index.html

Run (in node):

npm i
npx tsc --no-install
node dist/index.js

Expected behaviour:
Both RPC providers (OpenEthereum and Nethermind) should return the same results.

Console output should be as following:

$> [event from open ethereum]  
$> [event from nethermind]  
$> "Done"

Actual behaviour:
OpenEthereum returns the requested Signup-event while Nethermind doesn't (it returns an empty result instead).

Console output is:

$> [event from open ethereum]