reused grpc connections, not a constant refreshes anymore, all fixed now, keep on fixing other bugs

client/src/services/auth.rs

@@ -14,12 +14,20 @@ pub struct AuthClient {
 
 impl AuthClient {
     pub async fn new() -> Result<Self> {
+        // Kept for backward compatibility; opens a new connection.
         let client = AuthServiceClient::connect("http://[::1]:50051")
             .await
             .context("Failed to connect to auth service")?;
         Ok(Self { client })
     }
 
+    /// Preferred: reuse an existing Channel (from GrpcClient).
+    pub async fn with_channel(channel: Channel) -> Result<Self> {
+        Ok(Self {
+            client: AuthServiceClient::new(channel),
+        })
+    }    
+
     /// Login user via gRPC.
     pub async fn login(&mut self, identifier: String, password: String) -> Result<LoginResponse> {
         let request = tonic::Request::new(LoginRequest { identifier, password });

client/src/services/grpc_client.rs

@@ -2,7 +2,9 @@
 
 use common::proto::komp_ac::common::Empty;
 use common::proto::komp_ac::table_structure::table_structure_service_client::TableStructureServiceClient;
-use common::proto::komp_ac::table_structure::{GetTableStructureRequest, TableStructureResponse};
+use common::proto::komp_ac::table_structure::{
+    GetTableStructureRequest, TableStructureResponse,
+};
 use common::proto::komp_ac::table_definition::{
     table_definition_client::TableDefinitionClient,
     PostTableDefinitionRequest, ProfileTreeResponse, TableDefinitionResponse,
@@ -26,11 +28,13 @@ use crate::search::SearchGrpc;
 use common::proto::komp_ac::search::SearchResponse;
 use anyhow::{Context, Result};
 use std::collections::HashMap;
-use tonic::transport::Channel;
+use tonic::transport::{Channel, Endpoint};
 use prost_types::Value;
+use std::time::Duration;
 
 #[derive(Clone)]
 pub struct GrpcClient {
+    channel: Channel,
     table_structure_client: TableStructureServiceClient<Channel>,
     table_definition_client: TableDefinitionClient<Channel>,
     table_script_client: TableScriptClient<Channel>,
@@ -40,7 +44,14 @@ pub struct GrpcClient {
 
 impl GrpcClient {
     pub async fn new() -> Result<Self> {
-        let channel = Channel::from_static("http://[::1]:50051")
+        let endpoint = Endpoint::from_static("http://[::1]:50051")
+            .connect_timeout(Duration::from_secs(5))
+            .tcp_keepalive(Some(Duration::from_secs(30)))
+            .keep_alive_while_idle(true)
+            .http2_keep_alive_interval(Duration::from_secs(15))
+            .keep_alive_timeout(Duration::from_secs(5));
+
+        let channel = endpoint
             .connect()
             .await
             .context("Failed to create gRPC channel")?;
@@ -54,6 +65,7 @@ impl GrpcClient {
         let search_client = SearchGrpc::new(channel.clone());
 
         Ok(Self {
+            channel,
             table_structure_client,
             table_definition_client,
             table_script_client,
@@ -62,6 +74,11 @@ impl GrpcClient {
         })
     }
 
+    // Expose the shared channel so other typed clients can reuse it.
+    pub fn channel(&self) -> Channel {
+        self.channel.clone()
+    }
+
     pub async fn get_table_structure(
         &mut self,
         profile_name: String,