improvement according github comments

Author: kobayurii

configuration/example.config.toml

@@ -115,7 +115,7 @@ near_rpc_url = "https://beta.rpc.mainnet.near.org"
 
 ### Lake framework configuration
 [lake_config]
-# Number of threads to use for fetching data from fatnear
+# Number of threads to use for fetching data from fastnear
 # Default: 2 * available threads
 #num_threads = 8
 

rpc-server/src/metrics.rs

@@ -113,6 +113,11 @@ lazy_static! {
         "Optimistic updating status. 0: working, 1: not working",
     ).unwrap();
 
+    pub(crate) static ref CURRENT_PROTOCOL_VERSION: IntGauge = try_create_int_gauge(
+        "current_protocol_version",
+        "Current protocol version",
+    ).unwrap();
+
     pub(crate) static ref LEGACY_DATABASE_TX_DETAILS: IntCounterVec = register_int_counter_vec(
         "legacy_database_tx_details",
         "Total number of calls to the legacy database for transaction details",

rpc-server/src/utils.rs

@@ -149,7 +149,9 @@ pub async fn get_current_protocol_version(
     near_rpc_client: &JsonRpcClient,
 ) -> anyhow::Result<near_primitives::version::ProtocolVersion> {
     let params = near_jsonrpc_client::methods::status::RpcStatusRequest;
-    Ok(near_rpc_client.call(params, None).await?.protocol_version)
+    let protocol_version = near_rpc_client.call(params, None).await?.protocol_version;
+    crate::metrics::CURRENT_PROTOCOL_VERSION.set(protocol_version as i64);
+    Ok(protocol_version)
 }
 
 async fn handle_streamer_message(
@@ -205,7 +207,7 @@ pub async fn update_final_block_regularly(
         )
         .await
         {
-            tracing::error!("Error to handle_streamer_message: {:?}", err);
+            tracing::error!("Error in fn handle_streamer_message(): {:?}", err);
         };
         // Sleep for 500ms before the next iteration
         tokio::time::sleep(std::time::Duration::from_millis(500)).await;