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index.js
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index.js
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// Copyright 2019 Google LLC
//
// 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
//
// https://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.
'use strict';
const assert = require('assert');
const grpc = require('@grpc/grpc-js');
// Import the clients for each version supported by this package.
const gapic = Object.freeze({
v1beta1: require('./v1beta1'),
});
module.exports.v1beta1 = gapic.v1beta1;
// Alias `module.exports` as `module.exports.default`, for future-proofing.
module.exports.default = Object.assign({}, module.exports);
if (require.main === module) {
testShowcase().then(
() => {
console.log('It works!');
},
err => {
process.exitCode = 1;
console.log(err);
}
);
}
async function testShowcase() {
const client = new gapic.v1beta1.EchoClient({
grpc,
sslCreds: grpc.credentials.createInsecure(),
});
// assuming gRPC server is started locally
await testEcho(client);
await testExpand(client);
await testPagedExpand(client);
await testCollect(client);
await testChat(client);
await testWait(client);
}
async function testEcho(client) {
const request = {
content: 'test',
};
const [response] = await client.echo(request);
assert.deepStrictEqual(request.content, response.content);
}
async function testExpand(client) {
const words = ['nobody', 'ever', 'reads', 'test', 'input'];
const request = {
content: words.join(' '),
};
const result = await new Promise((resolve, reject) => {
const stream = client.expand(request);
const result = [];
stream.on('data', response => {
result.push(response.content);
});
stream.on('end', () => {
resolve(result);
});
stream.on('error', reject);
});
assert.deepStrictEqual(words, result);
}
async function testPagedExpand(client) {
const words = ['nobody', 'ever', 'reads', 'test', 'input'];
const request = {
content: words.join(' '),
pageSize: 2,
};
const [response] = await client.pagedExpand(request);
const result = response.map(r => r.content);
assert.deepStrictEqual(words, result);
}
async function testCollect(client) {
const words = ['nobody', 'ever', 'reads', 'test', 'input'];
const result = await new Promise((resolve, reject) => {
const stream = client.collect((err, result) => {
if (err) {
reject(err);
return;
}
resolve(result);
});
for (const word of words) {
const request = {content: word};
stream.write(request);
}
stream.end();
});
assert.deepStrictEqual(result.content, words.join(' '));
}
async function testChat(client) {
const words = [
'nobody',
'ever',
'reads',
'test',
'input',
'especially',
'this',
'one',
];
const result = await new Promise((resolve, reject) => {
const result = [];
const stream = client.chat();
stream.on('data', response => {
result.push(response.content);
});
stream.on('end', () => {
resolve(result);
});
stream.on('error', reject);
for (const word of words) {
stream.write({content: word});
}
stream.end();
});
assert.deepStrictEqual(result, words);
}
async function testWait(client) {
const request = {
ttl: {
seconds: 5,
nanos: 0,
},
success: {
content: 'done',
},
};
const [operation] = await client.wait(request);
const [response] = await operation.promise();
assert.deepStrictEqual(response.content, request.success.content);
}