step

apis/hello-world-api.yaml

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+apiVersion: backstage.io/v1alpha1
+kind: API
+metadata:
+  name: hello-world
+  description: Hello World example for gRPC
+spec:
+  type: grpc
+  lifecycle: deprecated
+  owner: team-c
+  definition: |
+    // 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.helloworld";
+    option java_outer_classname = "HelloWorldProto";
+    option objc_class_prefix = "HLW";
+
+    package helloworld;
+
+    // The greeting service definition.
+    service Greeter {
+      // Sends a greeting
+      rpc SayHello (HelloRequest) returns (HelloReply) {}
+    }
+
+    // The request message containing the user's name.
+    message HelloRequest {
+      string name = 1;
+    }
+
+    // The response message containing the greetings
+    message HelloReply {
+      string message = 1;
+    }