mirror of https://github.com/grpc/grpc-node.git
80 lines
2.2 KiB
JavaScript
80 lines
2.2 KiB
JavaScript
/*
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*
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* Copyright 2025 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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const grpc = require('@grpc/grpc-js');
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const protoLoader = require('@grpc/proto-loader');
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var PROTO_PATH = __dirname + '/../protos/helloworld.proto';
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const packageDefinition = protoLoader.loadSync(
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PROTO_PATH,
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{keepCase: true,
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longs: String,
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enums: String,
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defaults: true,
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oneofs: true
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});
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var helloProto = grpc.loadPackageDefinition(packageDefinition).helloworld;
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const greeterImplementation = {
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sayHello: (call, callback) => {
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callback(null, { message: `Hello ${call.request.name}`});
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}
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};
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const slowGreeterImplementation = {
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sayHello: (call, callback) => {
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const waitTimeMs = 100 + (Math.random() * 100)|0;
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setTimeout(() => {
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callback(null, { message: `Hello ${call.request.name}`});
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}, waitTimeMs);
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}
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}
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function serverBindPort(server, port) {
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return new Promise((resolve, reject) => {
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server.bindAsync(`0.0.0.0:${port}`, grpc.ServerCredentials.createInsecure(), (error, port) => {
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if (error) {
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reject(error);
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} else {
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resolve(port);
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}
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})
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});
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}
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async function main() {
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const channelzServer = new grpc.Server();
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grpc.addAdminServicesToServer(channelzServer);
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await serverBindPort(channelzServer, 50052);
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const server1 = new grpc.Server();
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server1.addService(helloProto.Greeter.service, greeterImplementation);
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await serverBindPort(server1, 10001);
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const server2 = new grpc.Server();
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server2.addService(helloProto.Greeter.service, greeterImplementation);
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await serverBindPort(server2, 10002);
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const server3 = new grpc.Server();
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server3.addService(helloProto.Greeter.service, slowGreeterImplementation);
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await serverBindPort(server3, 10003);
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}
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main();
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