Remove collect metrics func to sdk process

src/paymentservice/charge.js

@@ -9,7 +9,6 @@ const { FlagdProvider} = require('@openfeature/flagd-provider');
 const flagProvider = new FlagdProvider();
 
 const logger = require('./logger');
-const runtimeMetrics = require('./runtime-metrics');
 const tracer = trace.getTracer('paymentservice');
 const meter = metrics.getMeter('paymentservice');
 const transactionsCounter = meter.createCounter('app.payment.transactions')
@@ -65,8 +64,5 @@ module.exports.charge = async request => {
   const { units, nanos, currencyCode } = request.amount;
   logger.info({transactionId, cardType, lastFourDigits, amount: { units, nanos, currencyCode }}, "Transaction complete.");
   transactionsCounter.add(1, {"app.payment.currency": currencyCode})
-
-  runtimeMetrics.setupRuntimeMetrics();
-
   return { transactionId }
 }

src/paymentservice/opentelemetry.js

@@ -12,6 +12,7 @@ const {containerDetector} = require('@opentelemetry/resource-detector-container'
 const {gcpDetector} = require('@opentelemetry/resource-detector-gcp')
 const {envDetector, hostDetector, osDetector, processDetector} = require('@opentelemetry/resources')
 const {RuntimeNodeInstrumentation} = require('@opentelemetry/instrumentation-runtime-node')
+const { setSdkInstance } = require('./runtime-metrics');
 
 const sdk = new opentelemetry.NodeSDK({
   traceExporter: new OTLPTraceExporter(),
@@ -42,4 +43,5 @@ const sdk = new opentelemetry.NodeSDK({
   ],
 })
 
-sdk.start();
+sdk.start();
+setSdkInstance(sdk);