Files
Edu/services/teacher-bff/src/shared/observability/tracer.ts
SpecialX 99155a5ea1 feat(teacher-bff): 完整实现 teacher-bff GraphQL 聚合层
包含 clients/graphql/middleware、health probes、shared-ts contracts 等
2026-07-10 19:10:07 +08:00

29 lines
822 B
TypeScript

import { getNodeAutoInstrumentations } from "@opentelemetry/auto-instrumentations-node";
import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http";
import { NodeSDK } from "@opentelemetry/sdk-node";
import { env } from "../../config/env.js";
let sdk: NodeSDK | null = null;
export function initTracer(): void {
if (!env.OTEL_EXPORTER_OTLP_ENDPOINT) return;
sdk = new NodeSDK({
serviceName: env.OTEL_SERVICE_NAME,
traceExporter: new OTLPTraceExporter({
url: `${env.OTEL_EXPORTER_OTLP_ENDPOINT}/v1/traces`,
}),
instrumentations: [getNodeAutoInstrumentations()],
});
sdk.start();
console.log(`Tracer initialized (service: ${env.OTEL_SERVICE_NAME})`);
}
export async function shutdownTracer(): Promise<void> {
if (sdk) {
await sdk.shutdown();
sdk = null;
}
}