区块链开发前景成都seo培训班

都是一个吗生的,找下例子

上一篇文章说到go实现的grpc方法已经实现了一个grpc的server端,

注意:

这两个项目的.proto文件应当是完全一致的,只是方法用各自的语言实现罢了

报错了:

Caught error: gRPC Error (code: 12, codeName: UNIMPLEMENTED, message: grpc: Decompressor is not installed for grpc-encoding "gzip", details: [], rawResponse: null, trailers: {})

dart客户端使用了gzip让我们去掉相对应的代码,现在代码如

// Copyright (c) 2018, the gRPC project authors. Please see the AUTHORS file
// for details. All rights reserved.
//
// 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./// Dart implementation of the gRPC helloworld.Greeter client.
import 'package:grpc/grpc.dart';
import 'package:helloworld/src/generated/helloworld.pbgrpc.dart';Future<void> main(List<String> args) async {final channel = ClientChannel('localhost',port: 50051,options: ChannelOptions(credentials: ChannelCredentials.insecure(),// codecRegistry://     CodecRegistry(codecs: const [GzipCodec(), IdentityCodec()]),),);final stub = GreeterClient(channel);final name = args.isNotEmpty ? args[0] : 'world';try {final response = await stub.sayHello(HelloRequest()..name = name,// options: CallOptions(compression: const GzipCodec()),);print('Greeter client received: ${response.message}');} catch (e) {print('Caught error: $e');}await channel.shutdown();
}

 获取到了消息:

 dart bin/client.dart
Greeter client received: Hello world