fix: refine

src/adapter/src/repositories/grpc/gpt_answer_client.rs

@@ -1,4 +1,3 @@
-use anyhow::Error;
 use tonic::{
     async_trait,
     transport::{Channel, Endpoint},
@@ -15,27 +14,10 @@ use rust_core::{common::errors::CoreError, ports::gpt_answer::GptAnswerPort};
 /// methods for connecting to the service, sending a question, and receiving an answer.
 #[derive(Clone)]
 pub struct GptAnswerClient {
-    client: Option<GptAnswerServiceClient<Channel>>,
     endpoint: Endpoint,
 }
 
 impl GptAnswerClient {
-    /// Creates a new `GptAnswerClient` instance with the provided gRPC endpoint.
-    ///
-    /// # Arguments
-    ///
-    /// * `endpoint`: An `Endpoint` representing the gRPC communication endpoint.
-    ///
-    /// # Returns
-    ///
-    /// Returns a new instance of `GptAnswerClient`.
-    fn new(endpoint: Endpoint) -> Self {
-        Self {
-            client: None,
-            endpoint,
-        }
-    }
-
     /// Initializes a new `GptAnswerClient` instance with the provided URI.
     ///
     /// # Arguments
@@ -46,12 +28,10 @@ impl GptAnswerClient {
     ///
     /// Returns a `Result` containing the initialized `GptAnswerClient` if successful,
     /// or a `CoreError` if an error occurs during initialization.
-    pub async fn init(uri: String) -> Result<Self, CoreError> {
-        // Establish connection to the gRPC server
-        let endpoint =
-            Channel::from_shared(uri).map_err(|err| CoreError::InternalError(err.into()))?;
-
-        Ok(Self::new(endpoint))
+    pub fn new(uri: String) -> Result<Self, CoreError> {
+        Channel::from_shared(uri)
+            .map_err(|err| CoreError::InternalError(err.into()))
+            .map(|endpoint| Self { endpoint })
     }
 
     /// Establishes a connection to the GPT answer service at the specified URI.
@@ -60,13 +40,10 @@ impl GptAnswerClient {
     ///
     /// Returns a `Result` containing the connected `GptAnswerServiceClient` if successful,
     /// or a `CoreError` if an error occurs during connection.
-    pub async fn connect(&mut self) -> Result<(), CoreError> {
-        let client = GptAnswerServiceClient::connect(self.endpoint.clone())
+    pub async fn connect(&self) -> Result<GptAnswerServiceClient<Channel>, CoreError> {
+        GptAnswerServiceClient::connect(self.endpoint.clone())
             .await
-            .map_err(|err| CoreError::InternalError(err.into()))?;
-
-        self.client = Some(client);
-        Ok(())
+            .map_err(|err| CoreError::InternalError(err.into()))
     }
 }
 
@@ -83,17 +60,13 @@ impl GptAnswerPort for GptAnswerClient {
     /// Returns a `Result` containing the generated answer as a `String` if successful,
     /// or a `CoreError` if an error occurs during communication with the service.
     async fn get_answer(&self, question: &str) -> Result<String, CoreError> {
-        let client = self
-            .client
-            .as_ref()
-            .ok_or_else(|| CoreError::InternalError(Error::msg("Client not initialized")))?;
-
         let request = tonic::Request::new(GetAnswerPayload {
             question: question.to_string(),
         });
 
-        let response = client
-            .clone()
+        let response = self
+            .connect()
+            .await?
             .get_answer(request)
             .await
             .map_err(|err| CoreError::InternalError(err.into()))?;

src/gpt_answer_server/src/controllers/gpt_answer.rs

@@ -10,10 +10,18 @@ use common::grpc::gpt_answer::gpt_answer::{
 /// the `GptAnswerService` trait generated by Tonic, which defines the RPC methods for answering
 /// questions.
 #[derive(Debug, Default)]
-pub struct GptAnswerServer;
+pub struct GptAnswerServiceImpl {
+    pub dummy_prop: String,
+}
+
+impl GptAnswerServiceImpl {
+    pub fn new(dummy_prop: String) -> Self {
+        Self { dummy_prop }
+    }
+}
 
 #[tonic::async_trait]
-impl GptAnswerService for GptAnswerServer {
+impl GptAnswerService for GptAnswerServiceImpl {
     /// Handle the gRPC `get_answer` request.
     ///
     /// This method is called when a gRPC client sends a request to get an answer to a question.
@@ -38,7 +46,7 @@ impl GptAnswerService for GptAnswerServer {
 
         // TODO: Implement your logic to generate an answer based on the question.
         // Placeholder logic: Generate an answer string
-        let answer = format!("Answer to: {}", payload.question);
+        let answer = format!("Answer to: {}, {}", payload.question, self.dummy_prop);
 
         // Construct a response containing the generated answer
         let response = GetAnswerResponse { answer };

src/gpt_answer_server/src/main.rs

@@ -5,17 +5,16 @@ use tonic::transport::Server;
 use common::grpc::gpt_answer::gpt_answer::gpt_answer_service_server::GptAnswerServiceServer;
 use common::loggers::telemetry::init_telemetry;
 use common::options::parse_options;
-use gpt_answer_server::controllers::gpt_answer::GptAnswerServer;
+use gpt_answer_server::controllers::gpt_answer::GptAnswerServiceImpl;
 use gpt_answer_server::options::Options;
 
-pub async fn init_grpc_server(options: Options) {
-    let server_endpoint = &options.server_endpoint;
-    let address = server_endpoint.parse().unwrap();
-    println!("Starting GPT Answer server at {}", server_endpoint);
+pub async fn serve(options: Options) {
+    let address = options.server_endpoint.parse().unwrap();
+    println!("Starting GPT Answer server at {}", options.server_endpoint);
 
-    let gpt_answer_server = GptAnswerServer::default();
+    let gpt_answer_service = GptAnswerServiceImpl::new("dummy_prop".to_string());
     Server::builder()
-        .add_service(GptAnswerServiceServer::new(gpt_answer_server))
+        .add_service(GptAnswerServiceServer::new(gpt_answer_service))
         .serve(address)
         .await
         .unwrap();
@@ -48,9 +47,9 @@ async fn main() {
         options.log.level.as_str(),
     );
 
-    let gpt_answer_server = tokio::spawn(init_grpc_server(options));
+    let server = tokio::spawn(serve(options));
 
-    tokio::try_join!(gpt_answer_server).expect("Failed to run servers");
+    tokio::try_join!(server).expect("Failed to run servers");
 
     global::shutdown_tracer_provider();
 }

src/public/src/controllers/question.rs

@@ -132,7 +132,7 @@ pub async fn update_question(
 #[instrument(level = "info", skip(question_port, gpt_answer_client))]
 pub async fn get_question_answer(
     question_port: Arc<dyn QuestionPort + Send + Sync>,
-    mut gpt_answer_client: GptAnswerClient,
+    gpt_answer_client: Arc<GptAnswerClient>,
     id: String,
 ) -> Result<impl Reply, Rejection> {
     let question_id = QuestionId::from_str(&id).map_err(WarpError::from)?;
@@ -142,8 +142,6 @@ pub async fn get_question_answer(
         .await
         .map_err(WarpError::from)?;
 
-    gpt_answer_client.connect().await.map_err(WarpError::from)?;
-
     let answer = gpt_answer_client
         .get_answer(&question.content)
         .await

src/public/src/main.rs

@@ -1,18 +1,20 @@
-use std::net::{Ipv4Addr, SocketAddrV4};
-use std::str::FromStr;
-use std::sync::Arc;
-
 #[cfg_attr(debug_assertions, allow(dead_code, unused_imports))]
 use openssl;
 #[rustfmt::skip]
 #[cfg_attr(debug_assertions, allow(dead_code, unused_imports))]
 use diesel;
+
+use std::net::{Ipv4Addr, SocketAddrV4};
+use std::str::FromStr;
+use std::sync::Arc;
+
 use clap::{Parser, Subcommand};
 use deadpool_diesel::postgres::Pool;
 use deadpool_diesel::{Manager, Runtime};
 use opentelemetry::global;
 use tracing::info;
 
+use adapter::repositories::grpc::gpt_answer_client::GptAnswerClient;
 use adapter::repositories::in_memory::question::QuestionInMemoryRepository;
 use adapter::repositories::postgres::question_db::QuestionDBRepository;
 use cli::options::Options;
@@ -48,8 +50,8 @@ async fn main() {
         options.log.level.as_str(),
     );
 
-    let warp_server = tokio::spawn(run_warp_server(options));
-    tokio::try_join!(warp_server).expect("Failed to run servers");
+    let server = tokio::spawn(serve(options));
+    tokio::try_join!(server).expect("Failed to run servers");
 
     global::shutdown_tracer_provider();
 }
@@ -74,7 +76,7 @@ enum Commands {
     Config,
 }
 
-pub async fn run_warp_server(options: Options) {
+pub async fn serve(options: Options) {
     let question_port: Arc<dyn QuestionPort + Send + Sync> = if options.db.in_memory.is_some() {
         info!("Using in-memory database");
         Arc::new(QuestionInMemoryRepository::new())
@@ -92,13 +94,15 @@ pub async fn run_warp_server(options: Options) {
         Arc::new(QuestionInMemoryRepository::new())
     };
 
-    let grpc_client = options.gpt_answer_service_url.clone();
-    let router = Router::new(question_port, grpc_client.into());
-    let routers = router.routes().await;
+    let gpt_answer_client =
+        Arc::new(GptAnswerClient::new(options.gpt_answer_service_url.to_string()).unwrap());
+
+    let router = Router::new(question_port, gpt_answer_client);
+    let routes = router.routes();
     let address = SocketAddrV4::new(
         Ipv4Addr::from_str(options.server.url.as_str()).unwrap(),
         options.server.port,
     );
 
-    warp::serve(routers).run(address).await
+    warp::serve(routes).run(address).await
 }

src/public/src/router.rs

@@ -1,4 +1,5 @@
 use std::sync::Arc;
+
 use warp::http::Method;
 use warp::{Filter, Rejection, Reply};
 
@@ -14,33 +15,25 @@ use crate::errors::return_error;
 /// Router for handling HTTP requests related to questions.
 pub struct Router {
     question_port: Arc<dyn QuestionPort + Send + Sync + 'static>,
-    gpt_answer_service_url: Arc<String>,
+    gpt_answer_client: Arc<GptAnswerClient>,
 }
 
 impl Router {
     /// Creates a new Router instance with the specified QuestionPort.
     pub fn new(
         question_port: Arc<dyn QuestionPort + Send + Sync + 'static>,
-        gpt_answer_service_url: Arc<String>,
+        gpt_answer_client: Arc<GptAnswerClient>,
     ) -> Self {
         Router {
             question_port: question_port.clone(),
-            gpt_answer_service_url: gpt_answer_service_url.clone(),
+            gpt_answer_client,
         }
     }
 
     /// Configures and returns the Warp filter for handling HTTP requests.
-    pub async fn routes(self) -> impl Filter<Extract = impl Reply, Error = Rejection> + Clone {
+    pub fn routes(self) -> impl Filter<Extract = impl Reply, Error = Rejection> + Clone {
         let store_filter = warp::any().map(move || self.question_port.clone());
 
-        let gpt_answer_client = GptAnswerClient::init(self.gpt_answer_service_url.to_string())
-            .await
-            .map_err(|err| {
-                tracing::error!("Failed to init GPT answer service: {:?}", err);
-                err
-            })
-            .unwrap();
-
         let cors = warp::cors()
             .allow_any_origin()
             .allow_header("content-type")
@@ -85,7 +78,7 @@ impl Router {
         let get_question_answer = warp::get()
             .and(warp::path("questions"))
             .and(store_filter.clone())
-            .and(warp::any().map(move || gpt_answer_client.clone()))
+            .and(warp::any().map(move || self.gpt_answer_client.clone()))
             .and(warp::path::param::<String>())
             .and(warp::path("answer"))
             .and_then(get_question_answer);

src/public/tests/questions_router_test.rs

@@ -12,6 +12,7 @@ mod tests {
     use warp::test::request;
 
     use adapter::repositories::{
+        grpc::gpt_answer_client::GptAnswerClient,
         in_memory::question::QuestionInMemoryRepository,
         postgres::question_db::{QuestionDBRepository, MIGRATIONS},
     };
@@ -32,8 +33,12 @@ mod tests {
     {
         let gpt_answer_service_url = "grpc://0.0.0.0:50051".to_string();
 
-        let router = Router::new(question_port, gpt_answer_service_url.into());
-        let routers = router.routes().await;
+        let gpt_answer_client: Arc<
+            adapter::repositories::grpc::gpt_answer_client::GptAnswerClient,
+        > = Arc::new(GptAnswerClient::new(gpt_answer_service_url.to_string()).unwrap());
+
+        let router = Router::new(question_port, gpt_answer_client);
+        let routers = router.routes();
 
         let raw_question_id: String = rand::thread_rng().gen_range(1..=1000).to_string();
         let question_id = QuestionId::from_str(&raw_question_id.clone()).unwrap();