From e7ef2a3a54a871bac30ca1ce8a1382dd567eab8d Mon Sep 17 00:00:00 2001
From: Eitan Seri-Levi <eserilev@ucsc.edu>
Date: Fri, 9 Feb 2024 06:59:39 +0200
Subject: [PATCH] validator liveness endpoint should accept string encoded
 indices (#5184)

* deserialize string indices as u64

* client should send quoted indices
---
 beacon_node/http_api/src/lib.rs |  5 +++--
 common/eth2/src/lib.rs          | 10 +++++++---
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/beacon_node/http_api/src/lib.rs b/beacon_node/http_api/src/lib.rs
index ad841b20e3a..ec3fd494d49 100644
--- a/beacon_node/http_api/src/lib.rs
+++ b/beacon_node/http_api/src/lib.rs
@@ -3864,7 +3864,7 @@ pub fn serve<T: BeaconChainTypes>(
             },
         );
 
-    // POST vaidator/liveness/{epoch}
+    // POST validator/liveness/{epoch}
     let post_validator_liveness_epoch = eth_v1
         .and(warp::path("validator"))
         .and(warp::path("liveness"))
@@ -3875,7 +3875,7 @@ pub fn serve<T: BeaconChainTypes>(
         .and(chain_filter.clone())
         .then(
             |epoch: Epoch,
-             indices: Vec<u64>,
+             indices: api_types::ValidatorIndexData,
              task_spawner: TaskSpawner<T::EthSpec>,
              chain: Arc<BeaconChain<T>>| {
                 task_spawner.blocking_json_task(Priority::P0, move || {
@@ -3894,6 +3894,7 @@ pub fn serve<T: BeaconChainTypes>(
                     }
 
                     let liveness: Vec<api_types::StandardLivenessResponseData> = indices
+                        .0
                         .iter()
                         .cloned()
                         .map(|index| {
diff --git a/common/eth2/src/lib.rs b/common/eth2/src/lib.rs
index 6687788d528..3c22c822b8a 100644
--- a/common/eth2/src/lib.rs
+++ b/common/eth2/src/lib.rs
@@ -2258,7 +2258,7 @@ impl BeaconNodeHttpClient {
     pub async fn post_validator_liveness_epoch(
         &self,
         epoch: Epoch,
-        indices: &Vec<u64>,
+        indices: &[u64],
     ) -> Result<GenericResponse<Vec<StandardLivenessResponseData>>, Error> {
         let mut path = self.eth_path(V1)?;
 
@@ -2268,8 +2268,12 @@ impl BeaconNodeHttpClient {
             .push("liveness")
             .push(&epoch.to_string());
 
-        self.post_with_timeout_and_response(path, indices, self.timeouts.liveness)
-            .await
+        self.post_with_timeout_and_response(
+            path,
+            &ValidatorIndexDataRef(indices),
+            self.timeouts.liveness,
+        )
+        .await
     }
 
     /// `POST validator/duties/attester/{epoch}`