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chore: refactoring zipkin to be able to use it in web (#1399)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| <!DOCTYPE html> | ||
| <html lang="en"> | ||
|
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| <head> | ||
| <meta charset="utf-8"> | ||
| <title>Zipkin Exporter Example</title> | ||
| <base href="/"> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1"> | ||
| </head> | ||
|
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| <body> | ||
| Example of using Web Tracer with Zipkin Exporter | ||
| <script type="text/javascript" src="zipkin.js"></script> | ||
| <br/> | ||
| <button id="button1">Test WebTracer with Zipkin</button> | ||
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| </body> | ||
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| </html> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| import { ConsoleSpanExporter, SimpleSpanProcessor } from '@opentelemetry/tracing'; | ||
| import { WebTracerProvider } from '@opentelemetry/web'; | ||
| import { ZipkinExporter } from '@opentelemetry/exporter-zipkin'; | ||
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| const provider = new WebTracerProvider(); | ||
| provider.addSpanProcessor(new SimpleSpanProcessor(new ConsoleSpanExporter())); | ||
| provider.addSpanProcessor(new SimpleSpanProcessor(new ZipkinExporter())); | ||
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| provider.register(); | ||
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| const tracer = provider.getTracer('example-tracer-web'); | ||
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| const prepareClickEvent = () => { | ||
| const element = document.getElementById('button1'); | ||
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| const onClick = () => { | ||
| const span = tracer.startSpan('foo'); | ||
| span.end(); | ||
| }; | ||
| element.addEventListener('click', onClick); | ||
| }; | ||
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| window.addEventListener('load', prepareClickEvent); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,9 @@ | ||
| module.exports = { | ||
| "env": { | ||
| "mocha": true, | ||
| "node": true | ||
| "commonjs": true, | ||
| "node": true, | ||
| "browser": true | ||
| }, | ||
| ...require('../../eslint.config.js') | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| /*! | ||
| * Copyright The OpenTelemetry Authors | ||
| * | ||
| * 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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| const karmaWebpackConfig = require('../../karma.webpack'); | ||
| const karmaBaseConfig = require('../../karma.base'); | ||
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| module.exports = (config) => { | ||
| config.set(Object.assign({}, karmaBaseConfig, { | ||
| webpack: karmaWebpackConfig, | ||
| files: ['test/browser/index-webpack.ts'], | ||
| preprocessors: { 'test/browser/index-webpack.ts': ['webpack'] } | ||
| })) | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
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@@ -15,3 +15,4 @@ | |
| */ | ||
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| export * from './zipkin'; | ||
| export * from './platform'; | ||
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131 changes: 131 additions & 0 deletions
131
packages/opentelemetry-exporter-zipkin/src/platform/browser/util.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| /* | ||
| * Copyright The OpenTelemetry Authors | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| import * as api from '@opentelemetry/api'; | ||
| import { ExportResult } from '@opentelemetry/core'; | ||
| import * as zipkinTypes from '../../types'; | ||
| import { OT_REQUEST_HEADER } from '../../utils'; | ||
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| /** | ||
| * Prepares send function that will send spans to the remote Zipkin service. | ||
| */ | ||
| export function prepareSend( | ||
| logger: api.Logger, | ||
| urlStr: string, | ||
| headers?: Record<string, string> | ||
| ) { | ||
| let xhrHeaders: Record<string, string>; | ||
| const useBeacon = navigator.sendBeacon && !headers; | ||
| if (headers) { | ||
| xhrHeaders = { | ||
| Accept: 'application/json', | ||
| 'Content-Type': 'application/json', | ||
| [OT_REQUEST_HEADER]: '1', | ||
| ...headers, | ||
| }; | ||
| } | ||
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| /** | ||
| * Send spans to the remote Zipkin service. | ||
| */ | ||
| return function send( | ||
| zipkinSpans: zipkinTypes.Span[], | ||
| done: (result: ExportResult) => void | ||
| ) { | ||
| if (zipkinSpans.length === 0) { | ||
| logger.debug('Zipkin send with empty spans'); | ||
| return done(ExportResult.SUCCESS); | ||
| } | ||
| const payload = JSON.stringify(zipkinSpans); | ||
| if (useBeacon) { | ||
| sendWithBeacon(payload, done, urlStr, logger); | ||
| } else { | ||
| sendWithXhr(payload, done, urlStr, logger, xhrHeaders); | ||
| } | ||
| }; | ||
| } | ||
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| /** | ||
| * Sends data using beacon | ||
| * @param data | ||
| * @param done | ||
| * @param urlStr | ||
| * @param logger | ||
| */ | ||
| function sendWithBeacon( | ||
| data: string, | ||
| done: (result: ExportResult) => void, | ||
| urlStr: string, | ||
| logger: api.Logger | ||
| ) { | ||
| if (navigator.sendBeacon(urlStr, data)) { | ||
| logger.debug('sendBeacon - can send', data); | ||
| done(ExportResult.SUCCESS); | ||
| } else { | ||
| logger.error('sendBeacon - cannot send', data); | ||
| done(ExportResult.FAILED_NOT_RETRYABLE); | ||
| } | ||
| } | ||
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| /** | ||
| * Sends data using XMLHttpRequest | ||
| * @param data | ||
| * @param done | ||
| * @param urlStr | ||
| * @param logger | ||
| * @param xhrHeaders | ||
| */ | ||
| function sendWithXhr( | ||
| data: string, | ||
| done: (result: ExportResult) => void, | ||
| urlStr: string, | ||
| logger: api.Logger, | ||
| xhrHeaders: Record<string, string> = {} | ||
| ) { | ||
| const xhr = new window.XMLHttpRequest(); | ||
| xhr.open('POST', urlStr); | ||
| Object.entries(xhrHeaders).forEach(([k, v]) => { | ||
| xhr.setRequestHeader(k, v); | ||
| }); | ||
|
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| xhr.onreadystatechange = () => { | ||
| if (xhr.readyState === XMLHttpRequest.DONE) { | ||
| const statusCode = xhr.status || 0; | ||
| logger.debug( | ||
| 'Zipkin response status code: %d, body: %s', | ||
| statusCode, | ||
| data | ||
| ); | ||
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| if (xhr.status >= 200 && xhr.status < 400) { | ||
| return done(ExportResult.SUCCESS); | ||
| } else if (statusCode < 500) { | ||
| return done(ExportResult.FAILED_NOT_RETRYABLE); | ||
| } else { | ||
| return done(ExportResult.FAILED_RETRYABLE); | ||
| } | ||
| } | ||
| }; | ||
|
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| xhr.onerror = err => { | ||
| logger.error('Zipkin request error', err); | ||
| return done(ExportResult.FAILED_RETRYABLE); | ||
| }; | ||
|
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| // Issue request to remote service | ||
| logger.debug('Zipkin request payload: %s', data); | ||
| xhr.send(data); | ||
| } |
17 changes: 17 additions & 0 deletions
17
packages/opentelemetry-exporter-zipkin/src/platform/index.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| /* | ||
| * Copyright The OpenTelemetry Authors | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| export * from './node'; |
17 changes: 17 additions & 0 deletions
17
packages/opentelemetry-exporter-zipkin/src/platform/node/index.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| /* | ||
| * Copyright The OpenTelemetry Authors | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| export * from './util'; |
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