From af0603b98d4142d2301b13815b506973fb88db5b Mon Sep 17 00:00:00 2001
From: Ash Kunda <18058966+akundaz@users.noreply.github.com>
Date: Wed, 3 Dec 2025 14:20:57 -0500
Subject: [PATCH] chore: add jovian fields to flashblocks

---
 src/primitives.rs | 7 +++++++
 src/publish.rs    | 4 +++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/primitives.rs b/src/primitives.rs
index 78ad141..306820c 100644
--- a/src/primitives.rs
+++ b/src/primitives.rs
@@ -62,6 +62,13 @@ pub struct ExecutionPayloadFlashblockDeltaV1 {
 	pub withdrawals: Vec<Withdrawal>,
 	/// The withdrawals root of the block.
 	pub withdrawals_root: B256,
+	/// The blob gas used
+	#[serde(
+		default,
+		skip_serializing_if = "Option::is_none",
+		with = "rblib::alloy::serde::quantity::opt"
+	)]
+	pub blob_gas_used: Option<u64>,
 }
 
 #[derive(Clone, Debug, PartialEq, Default, Deserialize, Serialize)]
diff --git a/src/publish.rs b/src/publish.rs
index 0c6e5a0..00b7f64 100644
--- a/src/publish.rs
+++ b/src/publish.rs
@@ -17,7 +17,7 @@ use {
 	parking_lot::RwLock,
 	rblib::{
 		alloy::{consensus::BlockHeader, eips::Encodable2718, primitives::U256},
-		prelude::*,
+		prelude::{ext::CheckpointOpExt, *},
 		reth::node::builder::PayloadBuilderAttributes,
 	},
 	std::{io, net::TcpListener, sync::Arc, time::Instant},
@@ -101,6 +101,7 @@ impl Step<Flashblocks> for PublishFlashblock {
 		// the block_base.
 		// TODO: Consider moving this into its own step
 		let base = self.block_base.write().take();
+		let (_excess_blob_gas, blob_gas_used) = payload.blob_fields();
 		let diff = ExecutionPayloadFlashblockDeltaV1 {
 			state_root: sealed_block.block().state_root,
 			receipts_root: sealed_block.block().receipts_root,
@@ -113,6 +114,7 @@ impl Step<Flashblocks> for PublishFlashblock {
 				.block()
 				.withdrawals_root()
 				.expect("withdrawals_root is present"),
+			blob_gas_used,
 		};
 
 		let flashblock_number = payload.context();