From 20ecd9d526daae1fbb9a96981e88d2d4d5e5e72f Mon Sep 17 00:00:00 2001
From: Vladimir Bugaev <boogvar@gmail.com>
Date: Fri, 5 Jan 2024 00:10:24 +0700
Subject: [PATCH] fix empty parameters error

---
 evm_loader/lib/src/abi/mod.rs | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/evm_loader/lib/src/abi/mod.rs b/evm_loader/lib/src/abi/mod.rs
index dec16ad597..d16dc2f0fa 100644
--- a/evm_loader/lib/src/abi/mod.rs
+++ b/evm_loader/lib/src/abi/mod.rs
@@ -81,10 +81,14 @@ async fn load_config() -> Result<Config, NeonError> {
 async fn dispatch(method_str: &str, params_str: &str) -> Result<String, NeonError> {
     let method: LibMethods = method_str.parse()?;
     let config = load_config().await?;
-    let RequestWithSlot {
-        slot,
-        tx_index_in_block,
-    } = serde_json::from_str(params_str).map_err(|_| params_to_neon_error(params_str))?;
+    let mut slot: Option<u64> = None;
+    let mut tx_index_in_block: Option<u64> = None;
+    if params_str != "" {
+        let RequestWithSlot {
+            slot,
+            tx_index_in_block,
+        } = serde_json::from_str(params_str).map_err(|_| params_to_neon_error(params_str))?;
+    }
     let rpc = build_rpc(&config, slot, tx_index_in_block).await?;
     let singer = build_signer(&config)?;