docs(grpc-reflection): moved example to common directory and match grpc-go server

Author: jtimmons

examples/package.json

@@ -7,6 +7,7 @@
     "google-protobuf": "^3.0.0",
     "@grpc/grpc-js": "^1.8.0",
     "@grpc/grpc-js-xds": "^1.8.0",
+    "@grpc/reflection": "^1.0.0",
     "lodash": "^4.6.1",
     "minimist": "^1.2.0"
   }

examples/reflection/server.js

@@ -0,0 +1,15 @@
+var path = require('path');
+var grpc = require('@grpc/grpc-js');
+var protoLoader = require('@grpc/proto-loader');
+var reflection = require('@grpc/reflection');
+
+var PROTO_PATH = path.join(__dirname, '../protos/helloworld.proto');
+
+var server = new grpc.Server();
+var packageDefinition = protoLoader.loadSync(PROTO_PATH);
+var reflection = new reflection.ReflectionService(packageDefinition);
+reflection.addToServer(server);
+
+server.bindAsync('localhost:5000', grpc.ServerCredentials.createInsecure(), () => {
+  server.start();
+});