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examples/opentelemetry-web/examples/fetch-proto/index.html
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<!DOCTYPE html> | ||
<html lang="en"> | ||
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<head> | ||
<meta charset="utf-8"> | ||
<title>Fetch Plugin Example</title> | ||
<base href="/"> | ||
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<meta name="viewport" content="width=device-width, initial-scale=1"> | ||
</head> | ||
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<body> | ||
Example of using Web Tracer with Fetch plugin with console exporter and proto exporter | ||
<script type="text/javascript" src="fetch-proto.js"></script> | ||
<br/> | ||
<button id="button1">Test</button> | ||
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</body> | ||
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</html> |
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const { context, trace } = require("@opentelemetry/api"); | ||
const { ConsoleSpanExporter, SimpleSpanProcessor} = require("@opentelemetry/sdk-trace-base"); | ||
const { WebTracerProvider } = require("@opentelemetry/sdk-trace-web"); | ||
const { FetchInstrumentation } = require("@opentelemetry/instrumentation-fetch"); | ||
const { ZoneContextManager } = require("@opentelemetry/context-zone"); | ||
const { B3Propagator } = require("@opentelemetry/propagator-b3"); | ||
const { registerInstrumentations } = require("@opentelemetry/instrumentation"); | ||
const { OTLPTraceExporter: OTLPTraceExporterProto } = require("@opentelemetry/exporter-trace-otlp-proto"); | ||
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const provider = new WebTracerProvider(); | ||
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// Note: For production consider using the "BatchSpanProcessor" to reduce the number of requests | ||
// to your exporter. Using the SimpleSpanProcessor here as it sends the spans immediately to the | ||
// exporter without delay | ||
provider.addSpanProcessor(new SimpleSpanProcessor(new ConsoleSpanExporter())); | ||
provider.addSpanProcessor( | ||
new SimpleSpanProcessor(new OTLPTraceExporterProto()) | ||
); | ||
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provider.register({ | ||
contextManager: new ZoneContextManager(), | ||
propagator: new B3Propagator(), | ||
}); | ||
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registerInstrumentations({ | ||
instrumentations: [ | ||
new FetchInstrumentation({ | ||
ignoreUrls: [/localhost:8090\/sockjs-node/], | ||
propagateTraceHeaderCorsUrls: [ | ||
"https://cors-test.appspot.com/test", | ||
"https://httpbin.org/get", | ||
], | ||
clearTimingResources: true, | ||
}), | ||
], | ||
}); | ||
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const webTracerWithZone = provider.getTracer("example-tracer-web"); | ||
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const getData = (url) => | ||
fetch(url, { | ||
method: "GET", | ||
headers: { | ||
Accept: "application/json", | ||
"Content-Type": "application/json", | ||
}, | ||
}); | ||
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// example of keeping track of context between async operations | ||
const prepareClickEvent = () => { | ||
const url = "https://httpbin.org/get"; | ||
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const element = document.getElementById("button1"); | ||
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const onClick = () => { | ||
const singleSpan = webTracerWithZone.startSpan("files-series-info"); | ||
context.with(trace.setSpan(context.active(), singleSpan), () => { | ||
getData(url).then((_data) => { | ||
trace | ||
.getSpan(context.active()) | ||
.addEvent("fetching-single-span-completed"); | ||
singleSpan.end(); | ||
}); | ||
}); | ||
for (let i = 0, j = 5; i < j; i += 1) { | ||
const span = webTracerWithZone.startSpan(`files-series-info-${i}`); | ||
context.with(trace.setSpan(context.active(), span), () => { | ||
getData(url).then((_data) => { | ||
trace | ||
.getSpan(context.active()) | ||
.addEvent(`fetching-span-${i}-completed`); | ||
span.end(); | ||
}); | ||
}); | ||
} | ||
}; | ||
element.addEventListener("click", onClick); | ||
}; | ||
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window.addEventListener("load", prepareClickEvent); |
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