Python — AWS Lambda

from opentelemetry import trace
from opentelemetry.trace import StatusCode

def handler(event, context):
  http_method = event.get('httpMethod', '')
  path = event.get('path', '')

  # Set the http request method and route on the parent span.
  span = trace.get_current_span()
  span.set_attributes({
      'http.request.method': http_method,
      'http.route': path,
  })

  try:
      result = process_event(event)

      # Set the HTTP response code and mark the parent span as failed for 4xx/5xx responses.
      status_code = result['statusCode']
      span.set_attribute('http.response.status_code', status_code)
      span.set_status(StatusCode.OK if status_code < 400 else StatusCode.ERROR)

      return result

  except Exception as e:
      # Set the exception, HTTP error code and status on the parent span.
      span.record_exception(e)
      span.set_attribute('http.response.status_code', 500)
      span.set_status(StatusCode.ERROR)
      return {
          'statusCode': 500,
          'headers': {'Content-Type': 'application/json'},
          'body': json.dumps({'error': 'Internal server error'}),
      }

pip install trace0-lambda-otel-logger

import trace0_lambda_otel_logger  # must be first
from trace0_lambda_otel_logger import flush

import logging

logger = logging.getLogger(__name__)

def handler(event, context):
    try:
        logger.info(f"Processing request with requestId: {context.aws_request_id}")
        return process_event(event, context)
    finally:
        flush()  # always flush before Lambda freezes