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feat: Opentelemetry integration (#1078)
* Add opentelemetry tracing * build: rename _toc to toc (#1066) * changes without context autosynth cannot find the source of changes triggered by earlier changes in this repository, or by version upgrades to tools such as linters. * fix: rename _toc to toc Source-Author: F. Hinkelmann <franziska.hinkelmann@gmail.com> Source-Date: Tue Jul 21 10:53:20 2020 -0400 Source-Repo: googleapis/synthtool Source-Sha: 99c93fe09f8c1dca09dfc0301c8668e3a70dd796 Source-Link: googleapis/synthtool@99c93fe Co-authored-by: sofisl <55454395+sofisl@users.noreply.github.com> * build: move gitattributes files to node templates (#1070) Source-Author: F. Hinkelmann <franziska.hinkelmann@gmail.com> Source-Date: Thu Jul 23 01:45:04 2020 -0400 Source-Repo: googleapis/synthtool Source-Sha: 3a00b7fea8c4c83eaff8eb207f530a2e3e8e1de3 Source-Link: googleapis/synthtool@3a00b7f * Add opentelemetry instrumentation * Add create span test * Refactor tracing * Add publisher key test * Fix linting issues * Add docs * Add example for opentelemetry * Add tracing example * Update headers * Add microsoft api documenter * Fix linting in samples/package.json * Add optional tracing * Fix linting issues * Re-add api-documenter * Update package.json * Update package.json * Update package.json * Fix docs * Add more unit tests * Fix linting * Add disable tracing tests * Update opentelemetryTracing sample Co-authored-by: Yoshi Automation Bot <yoshi-automation@google.com> Co-authored-by: sofisl <55454395+sofisl@users.noreply.github.com> Co-authored-by: Benjamin E. Coe <bencoe@google.com> Co-authored-by: Megan Potter <57276408+feywind@users.noreply.github.com>
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| /*! | ||
| * Copyright 2020 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 | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
||
| /** | ||
| * This sample demonstrates how to add OpenTelemetry tracing to the | ||
| * Google Cloud Pub/Sub API. | ||
| * | ||
| * For more information, see the README.md under /pubsub and the documentation | ||
| * at https://cloud.google.com/pubsub/docs. | ||
| */ | ||
|
|
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| 'use strict'; | ||
|
|
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| // sample-metadata: | ||
| // title: OpenTelemetry Tracing | ||
| // description: Demonstrates how to enable OpenTelemetry tracing in | ||
| // a publisher or subscriber. | ||
| // usage: node opentelemetryTracing.js <topic-name> <subscription-name> | ||
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| const SUBSCRIBER_TIMEOUT = 10; | ||
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| function main( | ||
| topicName = 'YOUR_TOPIC_NAME', | ||
| subscriptionName = 'YOUR_SUBSCRIPTION_NAME', | ||
| data = {foo: 'bar'} | ||
| ) { | ||
| // [START opentelemetry_tracing] | ||
| /** | ||
| * TODO(developer): Uncomment these variables before running the sample. | ||
| */ | ||
| // const topicName = 'my-topic'; | ||
| // const subscriptionName = 'my-subscription'; | ||
| // const data = 'Hello, world!"; | ||
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| // Imports the Google Cloud client library | ||
| const {PubSub} = require('@google-cloud/pubsub'); | ||
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| // Imports the OpenTelemetry API | ||
| const {opentelemetry} = require('@opentelemetry/api'); | ||
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| // Imports the OpenTelemetry span handlers and exporter | ||
| const { | ||
| SimpleSpanProcessor, | ||
| BasicTracerProvider, | ||
| ConsoleSpanExporter, | ||
| } = require('@opentelemetry/tracing'); | ||
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| // Set up span processing and specify the console as the span exporter | ||
| const provider = new BasicTracerProvider(); | ||
| const exporter = new ConsoleSpanExporter(); | ||
| provider.addSpanProcessor(new SimpleSpanProcessor(exporter)); | ||
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| provider.register(); | ||
| opentelemetry.trace.setGlobalTracerProvider(provider); | ||
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| // OpenTelemetry tracing is an optional feature and can be enabled by setting | ||
| // enableOpenTelemetryTraceing as a publisher or subscriber option | ||
| const enableOpenTelemetryTracing = { | ||
| enableOpenTelemetryTracing: true, | ||
| }; | ||
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| // Creates a client; cache this for further use | ||
| const pubSubClient = new PubSub(); | ||
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| async function publishMessage() { | ||
| // Publishes the message as a string, e.g. "Hello, world!" or JSON.stringify(someObject) | ||
| const dataBuffer = Buffer.from(data); | ||
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| const messageId = await pubSubClient | ||
| .topic(topicName, enableOpenTelemetryTracing) | ||
| .publish(dataBuffer); | ||
| console.log(`Message ${messageId} published.`); | ||
| } | ||
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| async function subscriptionListen() { | ||
| // Message handler for subscriber | ||
| const messageHandler = message => { | ||
| console.log(`Message ${message.id} received.`); | ||
| message.ack(); | ||
| }; | ||
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| // Listens for new messages from the topic | ||
| pubSubClient.subscription(subscriptionName).on('message', messageHandler); | ||
| setTimeout(() => { | ||
| pubSubClient | ||
| .subscription(subscriptionName, enableOpenTelemetryTracing) | ||
| .removeAllListeners(); | ||
| }, SUBSCRIBER_TIMEOUT * 1000); | ||
| } | ||
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| publishMessage().then(subscriptionListen()); | ||
| // [END opentelemetry_tracing] | ||
| } | ||
|
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| main(...process.argv.slice(2)); |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,43 @@ | ||
| /*! | ||
| * Copyright 2020 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 | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| import {Attributes, SpanContext, Span, trace} from '@opentelemetry/api'; | ||
| import {Tracer} from '@opentelemetry/tracing'; | ||
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| /** | ||
| * Wrapper for creating OpenTelemetry Spans | ||
| * | ||
| * @class | ||
| */ | ||
| export class OpenTelemetryTracer { | ||
| /** | ||
| * Creates a new span with the given properties | ||
| * | ||
| * @param {string} spanName the name for the span | ||
| * @param {Attributes?} attributes an object containing the attributes to be set for the span | ||
| * @param {SpanContext?} parent the context of the parent span to link to the span | ||
| */ | ||
| createSpan( | ||
| spanName: string, | ||
| attributes?: Attributes, | ||
| parent?: SpanContext | ||
| ): Span { | ||
| const tracerProvider: Tracer = trace.getTracer('default') as Tracer; | ||
| return tracerProvider.startSpan(spanName, { | ||
| parent: parent, | ||
| attributes: attributes, | ||
| }); | ||
| } | ||
| } |
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