v0.2.9-pre.002-fix.001

crates/ksp-onchain-transport-lib/src/grpc_channel.rs

@@ -1,5 +1,5 @@
 // file: crates/ksp-onchain-transport-lib/src/grpc_channel.rs
-// version: 1
+// version: 2
 
 /// Prepared Yellowstone gRPC channel owned by KSP Transport.
 ///
@@ -9,7 +9,7 @@ pub struct YellowstoneGrpcChannel {
     endpoint_name: std::string::String,
     provider: crate::YellowstoneGrpcProviderName,
     cluster: crate::YellowstoneGrpcClusterName,
-    channel: tonic::transport::Channel,
+    _channel: tonic::transport::Channel,
 }
 
 impl YellowstoneGrpcChannel {
@@ -28,6 +28,19 @@ impl YellowstoneGrpcChannel {
                     .with_context("endpoint_name", endpoint.name()),
             );
         }
+        if tokio::runtime::Handle::try_current().is_err() {
+            ksp_logging_lib::warn!(
+                target: crate::TRACING_TARGET,
+                endpoint_name = endpoint.name(),
+                provider = endpoint.provider().as_str(),
+                cluster = endpoint.cluster().as_str(),
+                "Yellowstone gRPC channel preparation requires an active Tokio runtime"
+            );
+            return std::result::Result::Err(
+                ksp_core_lib::Error::new(crate::ERROR_CODE_GRPC_CHANNEL_FAILED, "Yellowstone gRPC channel requires an active Tokio runtime")
+                    .with_context("endpoint_name", endpoint.name()),
+            );
+        }
         let tonic_endpoint = match tonic::transport::Endpoint::from_shared(endpoint.url().as_str().to_owned()) {
             std::result::Result::Ok(value) => value,
             std::result::Result::Err(_) => {
@@ -60,7 +73,7 @@ impl YellowstoneGrpcChannel {
             endpoint_name: endpoint.name().to_owned(),
             provider: endpoint.provider().clone(),
             cluster: endpoint.cluster().clone(),
-            channel,
+            _channel: channel,
         });
     }