mirror of https://github.com/grpc/grpc-node.git
90 lines
2.9 KiB
JavaScript
90 lines
2.9 KiB
JavaScript
/*
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*
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* Copyright 2023 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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const parseArgs = require('minimist');
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const os = require('os');
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const 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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const helloProto = grpc.loadPackageDefinition(packageDefinition).helloworld;
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function unaryCall(client, requestId, name, expectedCode) {
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console.log(`[${requestId}] Calling SayHello with name:"${name}"`);
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return new Promise((resolve, reject) => {
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client.sayHello({name: name}, (error, value) => {
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if (error) {
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if (error.code === expectedCode) {
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console.log(`[${requestId}] Received error ${error.message}`);
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} else {
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console.log(`[${requestId}] Received unexpected error ${error.message}`);
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}
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}
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if (value) {
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console.log(`[${requestId}] Received response ${value.message}`);
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}
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resolve();
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});
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});
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}
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function streamingCall(client, requestId, name, expectedCode) {
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console.log(`[${requestId}] Calling SayHelloStreamReply with name:"${name}"`);
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return new Promise((resolve, reject) => {
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const call = client.sayHelloStreamReply({name: name});
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call.on('data', value => {
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console.log(`[${requestId}] Received response ${value.message}`);
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});
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call.on('status', status => {
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console.log(`[${requestId}] Received status with code=${grpc.status[status.code]} details=${status.details}`);
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resolve();
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});
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call.on('error', error => {
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if (error.code === expectedCode) {
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console.log(`[${requestId}] Received expected error ${error.message}`);
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} else {
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console.log(`[${requestId}] Received unexpected error ${error.message}`);
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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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let argv = parseArgs(process.argv.slice(2), {
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string: 'target',
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default: {target: 'localhost:50052'}
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});
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const client = new helloProto.Greeter(argv.target, grpc.credentials.createInsecure());
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const name = os.userInfo().username ?? 'unknown';
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await unaryCall(client, 1, '', grpc.status.INVALID_ARGUMENT);
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await unaryCall(client, 2, name, grpc.status.OK);
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await streamingCall(client, 3, '', grpc.status.INVALID_ARGUMENT);
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await streamingCall(client, 4, name, grpc.status.OK);
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}
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main();
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