i trying to use signoz self-hosted (docker) to log traces in my nestjs application, my code ahows no errors but i still do not see any logs , traces in the signoz ui

// tracer.ts
'use strict';

import { getNodeAutoInstrumentations } from '@opentelemetry/auto-instrumentations-node';
import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-http';
import { Resource } from '@opentelemetry/resources';
import { formattedLogger } from './utils/formatedLogger';
import { SemanticResourceAttributes } from '@opentelemetry/semantic-conventions';
import { ConfigService } from '@nestjs/config';
import { NodeSDK } from '@opentelemetry/sdk-node';

const logger = formattedLogger('Signoz');
 telemetry data to SigNoz
const exporterOptions = {
  url: 'http://server-ip:4318/v1/traces',
};

const traceExporter = new OTLPTraceExporter(exporterOptions);
const sdk = new NodeSDK({
  traceExporter,
  instrumentations: [
    getNodeAutoInstrumentations({
      '@opentelemetry/instrumentation-nestjs-core': { enabled: true },
    }),
  ],
  resource: new Resource({
    [SemanticResourceAttributes.SERVICE_NAME]: 'imcoder-backend',
  }),
});

sdk.start();

// Gracefully shut down the SDK on process exit
process.on('SIGTERM', () => {
  sdk
    .shutdown()
    .then(() => logger.log('Tracing terminated'))
    .catch((error) => logger.error('Error terminating tracing: ' + error))
    .finally(() => process.exit(0));
});
process.on('SIGINT', () => {
  sdk
    .shutdown()
    .then(() => logger.log('Tracing terminated'))
    .catch((error) => logger.error('Error terminating tracing:' + error))
    .finally(() => process.exit(0));
});
export default sdk;

Then im calling tracer in my main file:
// main.ts
…
tracer.start()
…