feat: add rpc namespace

[SozinM]

Motivation

Adds RPC namespace for #926

Considerations

I took the type from reth rpc-types, so it could be migrated to alloy crate later.

The name of the crate came up a little bit silly rpc-types-rpc, so maybe better to rename it to rpc-types-namespaces, or something like that

Both anvil and get do not support rpc_methods, so I did not implement a test to cover the call itself, but the structure is tested on the mock data.

Solution

Usage example. Replace RETH_ENDPOINT with endpoint

use alloy_provider::{ext::RpcApi, ProviderBuilder};


#[tokio::main]
async fn main() {
    let url = String::from("RETH_ENDPOINT");
    let node_url = url::Url::parse(url.as_str()).unwrap();
    let provider = ProviderBuilder::new().on_http(node_url);



    let result = provider
        .rpc_modules()
        .await
        .unwrap();
    println!("{:#?}", result);
}

PR Checklist

• Added Tests
• Added Documentation
• Breaking changes

[SozinM]

@mattsse hi!
Feel free to review it when you have spare time :)

[SozinM]

@DaniPopes, maybe you want to take a look until it's gone stale?

[mattsse]

sorry about the delay.

let's just move this type to the rpc-types crate, not worth having a standalone crate just for this.

[mattsse]

I think this crate is a bit too much,

this only consists of 1 type which we can just move to the rpc-types crate, it's only one type.

[SozinM]

Changed!
One comment is that I didn't hide mod rpc behind the feature flag, because it will cause serde crate to be unused. If the feature flag is needed I could dig deeper into it.

[mattsse]

lgtm