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feat: implement eth_config RPC with morph extension #72

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Merged
panos-xyz merged 4 commits into from
Mar 31, 2026
Merged

feat: implement eth_config RPC with morph extension #72

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a98aeb0
feat: implement eth_config RPC with morph extension for morphnode com…
panos-xyz Mar 30, 2026
49c6522
fix(rpc): correct precompiles doc comment and fork selection edge case
panos-xyz Mar 30, 2026
0c0950c
style: fmt all
panos-xyz Mar 30, 2026
d06133f
Merge branch 'main' into feat/eth-config-rpc
panos-xyz Mar 31, 2026
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2 changes: 2 additions & 0 deletions Cargo.lock
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20 changes: 17 additions & 3 deletions crates/node/src/add_ons.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ use crate::{
};
use morph_evm::MorphEvmConfig;
use morph_primitives::{Block, MorphHeader, MorphReceipt};
use morph_rpc::MorphEthApiBuilder;
use morph_rpc::{MorphEthApiBuilder, MorphEthConfigApiServer, MorphEthConfigHandler};
use reth_node_api::{AddOnsContext, FullNodeComponents, FullNodeTypes, NodeAddOns, NodePrimitives};
use reth_node_builder::{
NodeAdapter,
Expand Down Expand Up @@ -103,6 +103,10 @@ where
let engine_state_tracker =
std::sync::Arc::new(morph_engine_api::EngineStateTracker::default());

// Create Morph eth_config handler (EIP-7910 + morph extension)
let eth_config_handler =
MorphEthConfigHandler::new(ctx.node.provider().clone(), ctx.node.evm_config().clone());

// Keep a local view of canonical head/forkchoice from reth engine events.
let tracker_for_events = engine_state_tracker.clone();
task_executor.spawn_critical("morph engine state tracker", async move {
Expand All @@ -112,13 +116,23 @@ where
}
});

// Use launch_add_ons_with to register custom Engine API
// Use launch_add_ons_with to register custom Engine API and eth_config
self.inner
.launch_add_ons_with(ctx, move |container| {
let reth_node_builder::rpc::RpcModuleContainer {
auth_module, ..
modules,
auth_module,
..
} = container;

// Register Morph eth_config handler (EIP-7910 + morph extension)
// This provides eth_config on HTTP/WS/IPC for morphnode compatibility.
tracing::debug!(target: "morph::node", "Registering Morph eth_config handler");
modules
.merge_configured(eth_config_handler.into_rpc())
.map_err(|e| eyre::eyre!("Failed to register eth_config handler: {}", e))?;
tracing::info!(target: "morph::node", "Morph eth_config handler registered successfully");

// Create and register Morph L2 Engine API
tracing::debug!(target: "morph::node", "Registering Morph L2 Engine API");

Expand Down
4 changes: 4 additions & 0 deletions crates/rpc/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ reth-rpc-eth-types.workspace = true
reth-evm.workspace = true
reth-provider.workspace = true
reth-revm.workspace = true
reth-storage-api.workspace = true
reth-tasks.workspace = true
reth-errors.workspace = true
reth-transaction-pool.workspace = true
Expand Down Expand Up @@ -57,5 +58,8 @@ eyre.workspace = true
tracing.workspace = true


[dev-dependencies]
serde_json.workspace = true

[features]
default = []
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