added stencil code

Author: cjqzhao

codelabs/grpc-rust-getting-started/completed/client/client.rs

@@ -0,0 +1,19 @@
+use tonic::Request;
+
+use routeguide::route_guide_client::RouteGuideClient;
+use routeguide::{Point};
+
+pub mod routeguide {
+    tonic::include_proto!("routeguide");
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    ///////////////////////////////////////////////////////////////////////////
+	// Codelab Hint: Logic for your gRPC Client will be added here.
+	//
+	// Steps include:
+	//  -   Create a connection to the gRPC server using RouteGuideClient::connect(...).
+	//  -   Call service methods on the client to interact with the server.
+	///////////////////////////////////////////////////////////////////////////
+}

codelabs/grpc-rust-getting-started/start_here/Cargo.toml

@@ -0,0 +1,46 @@
+// Copyright 2015 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+option java_multiple_files = true;
+option java_package = "io.grpc.examples.routeguide";
+option java_outer_classname = "RouteGuideProto";
+
+package routeguide;
+
+// Interface exported by the server.
+service RouteGuide {
+  /////////////////////////////////////////////////////////////////////////////
+  // Codelab Hint: Define RPC methods here
+  /////////////////////////////////////////////////////////////////////////////
+}
+
+message Point {
+  /////////////////////////////////////////////////////////////////////////////
+  // Codelab Hint: Define RPC methods here
+  /////////////////////////////////////////////////////////////////////////////
+}
+
+// A feature names something at a given point.
+//
+// If a feature could not be named, the name is empty.
+message Feature {
+  /////////////////////////////////////////////////////////////////////////////
+  // Codelab Hint: Define RPC methods here
+  /////////////////////////////////////////////////////////////////////////////
+}
+
+
+

codelabs/grpc-rust-getting-started/start_here/src/client/client.rs

@@ -0,0 +1,46 @@
+use std::sync::Arc;
+
+use tonic::transport::Server;
+use tonic::{Request, Response, Status};
+
+use routeguide::route_guide_server::{RouteGuide, RouteGuideServer};
+use routeguide::{Feature, Point};
+
+/// Brings generated code into scope.
+pub mod routeguide {
+    tonic::include_proto!("routeguide");
+}
+mod data;
+
+#[derive(Debug)]
+pub struct RouteGuideService {
+    features: Arc<Vec<Feature>>,
+}
+
+#[tonic::async_trait]
+impl RouteGuide for RouteGuideService {
+    async fn get_feature(&self, request: Request<Point>) -> Result<Response<Feature>, Status> {
+        ///////////////////////////////////////////////////////////////////////////
+        // Codelab Hint: Logic for GetFeature will be added here.
+        //
+        // Steps include:
+        // -   Loop through server's features to find the feature that matches the
+        //     point.
+        // -   Return the feature if found.
+        // -   Return an unnamed feature if no feature is found.
+        ///////////////////////////////////////////////////////////////////////////
+    }
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    ///////////////////////////////////////////////////////////////////////////
+	// Codelab Hint: Logic for starting up a gRPC Server will be added here.
+	//
+	// Steps include:
+	//  -   Specify the port we want to use to listen for client requests using
+	//  -   Create an instance of the gRPC server using RouteGuideServer::new().
+	//  -   Register our service implementation with the server.
+	///////////////////////////////////////////////////////////////////////////
+}
+