mirror of
https://github.com/denoland/deno.git
synced 2024-12-03 17:08:35 -05:00
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.
|
|
|
|
import { trace } from "npm:@opentelemetry/api@1.9.0";
|
|
import "jsr:@deno/otel@0.0.2/register";
|
|
|
|
const tracer = trace.getTracer("example-tracer");
|
|
|
|
async function inner() {
|
|
await tracer.startActiveSpan("inner span", async (span) => {
|
|
console.log("log 1");
|
|
await 1;
|
|
console.log("log 2");
|
|
span.end();
|
|
});
|
|
}
|
|
|
|
const server = Deno.serve({
|
|
port: 0,
|
|
async onListen({ port }) {
|
|
try {
|
|
await fetch(`http://localhost:${port}`);
|
|
} finally {
|
|
server.shutdown();
|
|
}
|
|
},
|
|
handler: async (_req) => {
|
|
return await tracer.startActiveSpan("outer span", async (span) => {
|
|
await inner();
|
|
const resp = new Response(null, { status: 200 });
|
|
span.end();
|
|
return resp;
|
|
});
|
|
},
|
|
});
|