i could have sworn i had this working earlier today but now i am getting OTLPExporterError Unauthorized trying to send logs to SigNoz. The ingest token assigned to OTEL_EXPORTER_ACCESS_TOKEN is valid and works for tracing. Code:

import { LoggerProvider, BatchLogRecordProcessor } from '@opentelemetry/sdk-logs';
import { OTLPLogExporter } from '@opentelemetry/exporter-logs-otlp-http';
import { OpenTelemetryTransportV3 } from '@opentelemetry/winston-transport';
import { resourceFromAttributes } from '@opentelemetry/resources';
import winston from 'winston';
import { ATTR_SERVICE_NAME, ATTR_SERVICE_VERSION } from '@opentelemetry/semantic-conventions';
import { logs } from '@opentelemetry/api-logs';
import {
  OTEL_EXPORTER_ACCESS_TOKEN,
  OTEL_EXPORTER_OTLP_LOGS_ENDPOINT,
  OTEL_SERVICE_NAME,
} from '../bootstrapConfig';

console.log(`*** OTLP logging is configured. Endpoint: '${OTEL_EXPORTER_OTLP_LOGS_ENDPOINT}'`);

// Create the OTLP exporter with proper authentication
const logExporter = new OTLPLogExporter({
  url: OTEL_EXPORTER_OTLP_LOGS_ENDPOINT,
  headers: {
    'signoz-access-token': OTEL_EXPORTER_ACCESS_TOKEN,
  },
});

// Create and configure the LoggerProvider
const provider = new LoggerProvider({
  resource: resourceFromAttributes({
    [ATTR_SERVICE_NAME]: 'winston-logger',
    [ATTR_SERVICE_VERSION]: '1.0.0',
    'deployment.environment': process.env.NODE_ENV || 'development',
  }),
});

// Connect the exporter to the provider
provider.addLogRecordProcessor(new BatchLogRecordProcessor(logExporter));

// Set the provider as the global logger provider
logs.setGlobalLoggerProvider(provider);

// Now the OpenTelemetryTransportV3 will use the global provider
const transports: winston.transport[] = [
  new winston.transports.Console(),
  new OpenTelemetryTransportV3(),
];

export const logger = winston.createLogger({
  level: 'debug',
  transports,
  format: winston.format.combine(
    winston.format.timestamp(),
    winston.format.errors({
      stack: true,
    }),
    winston.format.metadata(),
    winston.format.json()
  ),
  defaultMeta: {
    service: 'winston-logger',
    environment: process.env.NODE_ENV || 'development',
  },
});

full error:

{
  "stack": "OTLPExporterError: Unauthorized\n    at IncomingMessage.<anonymous> (/Users/nhoize/vortex/vortex/node_modules/.pnpm/@opentelemetry+otlp-exporter-base@0.202.0_@opentelemetry+api@1.9.0/node_modules/@opentelemetry/otlp-exporter-base/src/transport/http-transport-utils.ts:75:23)\n    at <anonymous> (/Users/nhoize/vortex/vortex/node_modules/.pnpm/@opentelemetry+context-async-hooks@2.0.1_@opentelemetry+api@1.9.0/node_modules/@opentelemetry/context-async-hooks/src/AbstractAsyncHooksContextManager.ts:75:49)\n    at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:80:14)\n    at AsyncLocalStorageContextManager.with (/Users/nhoize/vortex/vortex/node_modules/.pnpm/@opentelemetry+context-async-hooks@2.0.1_@opentelemetry+api@1.9.0/node_modules/@opentelemetry/context-async-hooks/src/AsyncLocalStorageContextManager.ts:40:36)\n    at IncomingMessage.contextWrapper (/Users/nhoize/vortex/vortex/node_modules/.pnpm/@opentelemetry+context-async-hooks@2.0.1_@opentelemetry+api@1.9.0/node_modules/@opentelemetry/context-async-hooks/src/AbstractAsyncHooksContextManager.ts:75:26)\n    at IncomingMessage.emit (node:events:530:35)\n    at endReadableNT (node:internal/streams/readable:1698:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)",
  "message": "Unauthorized",
  "code": "401",
  "name": "OTLPExporterError",
  "data": "Unauthorized\n"
}