08.Telemetry

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install dependencies

pnpm add @effect/opentelemetry
pnpm add @opentelemetry/exporter-trace-otlp-http
pnpm add @opentelemetry/sdk-trace-base
pnpm add @opentelemetry/sdk-trace-node
pnpm add @opentelemetry/sdk-trace-web
pnpm add @opentelemetry/sdk-metrics
pnpm add @opentelemetry/exporter-prometheus
pnpm add @opentelemetry/auto-instrumentations-node

สร้าง folder telemetry

src
├── configure
├── controllers
├── index.ts
├── repositories
├── runtimes
│   └── index.ts
├── schema
├── services
├── telemetry
│   └── node-sdk.ts
└── types

src/telemetry/node-sdk.ts

src/telemetry/node-sdk.ts

import { NodeSdk } from "@effect/opentelemetry"
import { getNodeAutoInstrumentations } from "@opentelemetry/auto-instrumentations-node"
import { PrometheusExporter } from "@opentelemetry/exporter-prometheus"
import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http"
import { BatchSpanProcessor } from "@opentelemetry/sdk-trace-base"

export const NodeSdkLive = NodeSdk.layer(() => {
  return {
    instrumentations: [getNodeAutoInstrumentations()],
    metricReader: new PrometheusExporter({
      port: 9464,
    }),
    resource: {
      serviceName: "Overtime Tracking API",
    },
    spanProcessor: new BatchSpanProcessor(
      new OTLPTraceExporter({
        url: "http://34.126.124.178:4318/v1/traces", // Tempo OTLP HTTP
      }),
    ),
  }
})

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