feat(rpc): add compression to JSON-RPC

[TheDhejavu]

Description

Resolves: #9652

This adds a compression layer that wraps tower_http::compression::CompressionLayer and adapts it to work with jsonrpsee's HTTP types. The layer automatically compresses responses based on the client's Accept-Encoding header while preserving the middleware chain's expected body type.

Supports:

• gzip
• deflate
• brotli
• zstd

Demo

[mattsse]

cool, but I think hyper doesn't apply any changes to the body automatically so we'd need to do that

this seems relevant:

paritytech/jsonrpsee#1133

[TheDhejavu]

cool, but I think hyper doesn't apply any changes to the body automatically so we'd need to do that

this seems relevant:

paritytech/jsonrpsee#1133

Thanks!!

figured out that reth has tower-http as a dependency and compression middleware is implemented by default which works out-of-the-box with jsonrpee with their recent release here.

in the case of this: paritytech/jsonrpsee#1133 (comment), the implementation is quite similar to what i did here but i will need to modify the body in order to compress it.

this will be the only change i will probably need to make if i use tower compression layer implementation.

use tower_http::compression::CompressionLayer;

impl<RpcMiddleware> RpcServerConfig<RpcMiddleware> {
    //.....other middlewares

    /// Returns a [`CompressionLayer`] that adds compression support (gzip, deflate, brotli, zstd)
    /// based on the client's `Accept-Encoding` header
    const fn maybe_compression_layer() -> Option<CompressionLayer> {
          Some(CompressionLayer::new())
    }
}

wdyt ?

[mattsse]

cool, sgtm!

[TheDhejavu]

cc @mattsse .

[mattsse]

great!

only have pedantic style nits