Feature: Expose networkClient query resolver

[goaaron]

What is the current behavior?
There isn't a standardized way of determining the kind and version of the chain clients that indexers use: erigon, openethereum, etc. This is a compounding problem with the adoption of multiple blockchains.

What is the expected behavior?
Have a standard means by which the web3 Transports can return their client versions.

e.g.

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":67}'

// Result
{
"id":67,
"jsonrpc":"2.0",
"result": "Mist/v0.9.3/darwin/go1.4.1"
}

Why is this useful?

• Determining discrepancies between clients (stress testing with the fisherman)
• Potential segmentation for indexer selection
• Benchmarking

[azf20]

Hey @goaaron - is the suggestion to add an easy way for indexers to share the result calling web3_clientVersion, or where do you see this data being surfaced?

[goaaron]

Hey @goaaron - is the suggestion to add an easy way for indexers to share the result calling web3_clientVersion, or where do you see this data being surfaced?

I'm thinking that there are a few places:

1. When an allocation is closed, the indexer stores metadata about their client version (in the network subgraph perhaps)
2. As an endpoint on the graph-node http server that can be probed during indexer selection.
3. As a graph-node package api that can be used by the graph-node CLI tools for syncing data for the dispute arbitration service that is being built out. Client versions are an important data feature for determining patterns in POI mismatch.