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594a99817c
This PR removes the public Deno.tracing.Span API. We are not confident we can ship an API that is better than the `@opentelemetry/api` API, because V8 CPED does not support us using `using` to manage span context. If this changes, we can revisit this decision. For now, users wanting custom spans can instrument their code using the `@opentelemetry/api` API and `@deno/otel`. This PR also speeds up the OTEL trace generation by a 30% by using Uint8Array instead of strings for the trace ID and span ID.
34 lines
809 B
TypeScript
34 lines
809 B
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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import { trace } from "npm:@opentelemetry/api@1.9.0";
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import "jsr:@deno/otel@0.0.2/register";
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const tracer = trace.getTracer("example-tracer");
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async function inner() {
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await tracer.startActiveSpan("inner span", async (span) => {
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console.log("log 1");
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await 1;
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console.log("log 2");
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span.end();
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});
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}
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const server = Deno.serve({
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port: 0,
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async onListen({ port }) {
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try {
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await fetch(`http://localhost:${port}`);
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} finally {
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server.shutdown();
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}
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},
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handler: async (_req) => {
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return await tracer.startActiveSpan("outer span", async (span) => {
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await inner();
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const resp = new Response(null, { status: 200 });
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span.end();
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return resp;
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});
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},
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});
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