Jhosbel a.

import { Metadata } from '@grpc/grpc-js'
import { trace } from '@opentelemetry/api'
import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-grpc'
import { Resource } from '@opentelemetry/resources'
import { SimpleSpanProcessor } from '@opentelemetry/sdk-trace-base'
import { NodeTracerProvider } from '@opentelemetry/sdk-trace-node'

console.log('🔥 tracing.js loaded')

const globalAny = globalThis as any

if (!globalAny.tracingProviderSingleton) {
  const metadata = new Metadata()
  metadata.set('x-arize-space-id', process.env.ARIZE_SPACE_ID!)
  metadata.set('x-arize-api-key', process.env.ARIZE_API_KEY!)

  const provider = new NodeTracerProvider({
    resource: new Resource({
      'service.name': 'conversationMessageHandler',
      'openinference.project.name': 'test-project',
    }),
  })

  provider.addSpanProcessor(
    new SimpleSpanProcessor(
      new OTLPTraceExporter({
        url: 'https://otlp.arize.com:443',
        metadata, // ✅ THIS IS THE KEY
      })
    )
  )

  provider.register()

  // sanity span
  const tracer = trace.getTracer('startup')
  const span = tracer.startSpan('startup-span')
  span.end()

  globalAny.tracingProviderSingleton = provider
}

export async function flushTracing() {
  await globalAny.tracingProviderSingleton.forceFlush()
}

import './tracing' // 👈 this is the key

import { trace } from '@opentelemetry/api'
// eslint-disable-next-line import/no-duplicates
import { flushTracing } from './tracing'

export const handler = async () => {
  const tracer = trace.getTracer('debug')
  const span = tracer.startSpan('manual-test-span')
  span.end()

  await flushTracing()
  return { statusCode: 200 }
}

  "dependencies": {
    "openai": "^5.10.2",
    "@arizeai/openinference-instrumentation-openai": "^4.0.5",
    "@opentelemetry/api": "1.9.0",
    "@opentelemetry/resources": "1.9.0",
    "@opentelemetry/sdk-trace-base": "1.9.0",
    "@opentelemetry/sdk-trace-node": "1.9.0",
    "@opentelemetry/instrumentation": "0.43.0",
    "@opentelemetry/exporter-trace-otlp-grpc": "0.43.0"
  }