getLogs can't use topics filter without timestamp range

[dimitrovmaksim]

Description

Looking through this Issue #494, when trying to filter eth_getLogs by topics, the relay returns an empty response. This happens due to the mirror-node requesting a timestamp range when filtering by topics:

https://testnet.mirrornode.hedera.com/api/v1/contracts/0x0000000000000000000000000000000002e39Dcb/results/logs?limit=2&order=asc&topic0=0x2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d'

{
  "_status": {
    "messages": [
      {
        "message": "Cannot search topics without a valid timestamp range: No timestamp range or eq operator provided"
      }
    ]
  }
}

Unfortunately without from/to blocks or a block hash we don't have timestamps filter, and we don't have a way to get a valid timestamp in the relay.

I will have to take a look how other JSON-RPC providers handle this and suggest solutions.

Steps to reproduce

Run the relay against the test net
Set the following variables in .env:

MIRROR_NODE_URL='https://testnet.mirrornode.hedera.com/'
HEDERA_NETWORK={"34.133.197.230:50211":"0.0.3"}

Execute against the relay:

curl http://localhost:7546 -X POST -H "Content-Type: application/json" --data '{"method":"eth_getLogs","params":[{"address":"0x0000000000000000000000000000000002e39Dcb", "topics":["0x2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d"]}],"id":1,"jsonrpc":"2.0"}' 

which should return an empty response:

{"result":[],"jsonrpc":"2.0","id":1}% 

and the mirror node request will fail with status code 400:

[Request ID: 6c997ed8-7ea7-44fa-857b-94057e39e9e4] [GET] contracts/0x0000000000000000000000000000000002e39Dcb/results/logs?topic0=0x2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d 400 status

But if fromBlock and toBlock are added to the request:

curl http://localhost:7546 -X POST -H "Content-Type: application/json" --data '{"method":"eth_getLogs","params":[{"address":"0x0000000000000000000000000000000002e39Dcb", "topics":["0x2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d"], "fromBlock":"0x183AC03", "toBlock":"0x183AC03"}],"id":1,"jsonrpc":"2.0"}'

It returns the logs:

{"result":[{"address":"0x0000000000000000000000000000000002e39dcb","blockHash":"0x9efd8366ecca242abb57e15be623cd6e372bb18cf09f541a2736d135c423b426","blockNumber":"0x183ac03","data":"0x","logIndex":"0x0","removed":false,"topics":["0x2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d","0x6860fe8d21cf07b079a82a9c51c03bf562359a53cac82a0cbfd033ab91761ccd","0x0000000000000000000000001d358d88b9215a1d42a22f46e7766b6f7fd5142b","0x0000000000000000000000001d358d88b9215a1d42a22f46e7766b6f7fd5142b"],"transactionHash":"0xedbffd06130874301a6f342c98b09464f8806a25430c726566d3139475c34c7c","transactionIndex":"0x1"},{"address":"0x0000000000000000000000000000000002e39dcb","blockHash":"0x9efd8366ecca242abb57e15be623cd6e372bb18cf09f541a2736d135c423b426","blockNumber":"0x183ac03","data":"0x","logIndex":"0x1","removed":false,"topics":["0x2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d","0x0e8cefca32b79d2efbc5f5c583ce3aca66d94228747c49d0dae86c46974e111a","0x0000000000000000000000001d358d88b9215a1d42a22f46e7766b6f7fd5142b","0x0000000000000000000000001d358d88b9215a1d42a22f46e7766b6f7fd5142b"],"transactionHash":"0xedbffd06130874301a6f342c98b09464f8806a25430c726566d3139475c34c7c","transactionIndex":"0x1"},{"address":"0x0000000000000000000000000000000002e39dcb","blockHash":"0x9efd8366ecca242abb57e15be623cd6e372bb18cf09f541a2736d135c423b426","blockNumber":"0x183ac03","data":"0x","logIndex":"0x2","removed":false,"topics":["0x2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d","0x0000000000000000000000000000000000000000000000000000000000000000","0x0000000000000000000000001d358d88b9215a1d42a22f46e7766b6f7fd5142b","0x0000000000000000000000001d358d88b9215a1d42a22f46e7766b6f7fd5142b"],"transactionHash":"0xedbffd06130874301a6f342c98b09464f8806a25430c726566d3139475c34c7c","transactionIndex":"0x1"}],"jsonrpc":"2.0","id":1}% 

Additional context

No response

Hedera network

All

Version

All

Operating system

No response