HELP (Again)! Trying to Push Logs from AWS Kinesis to Splunk via HEC Using Lambda Function but getting no events on splunk

This is my lambda_function.py code. I am getting { "statusCode": 200, "body": "Data processed successfully"} still no logs also there is no error reported in splunkd. I am able to send events via curl & postman for the same index. Please help me out. Thanks

import json
import requests
import base64

# Splunk HEC Configuration
splunk_url = "https://127.0.0.1:8088/services/collector/event"  # Replace with your Splunk HEC URL
splunk_token = "6abc8f7b-a76c-458d-9b5d-4fcbd2453933"  # Replace with your Splunk HEC token
headers = {"Authorization": f"Splunk {splunk_token}"}  # Add the Splunk HEC token in the Authorization header

def lambda_handler(event, context):
    try:
        # Extract 'Records' from the incoming event object (Kinesis event)
        records = event.get("Records", [])
        
        # Loop through each record in the Kinesis event
        for record in records:
            # Extract the base64-encoded data from the record
            encoded_data = record["kinesis"]["data"]
            
            # Decode the base64-encoded data and convert it to a UTF-8 string
            decoded_data = base64.b64decode(encoded_data).decode('utf-8')  # Decode and convert to string
            
            # Parse the decoded data as JSON
            payload = json.loads(decoded_data)  # Convert the string data into a Python dictionary

            # Create the event to send to Splunk (Splunk HEC expects an event in JSON format)
            splunk_event = {
                "event": payload,            # The actual event data (decoded from Kinesis)
                "sourcetype": "manual",      # Define the sourcetype for the event (used for data categorization)
                "index": "myindex"          # Specify the index where data should be stored in Splunk (modify as needed)
            }
            
            # Send the event to Splunk HEC via HTTP POST request
            response = requests.post(splunk_url, headers=headers, json=splunk_event, verify=False)  # Send data to Splunk
            
            # Check if the response status code is 200 (success) and log the result
            if response.status_code != 200:
                print(f"Failed to send data to Splunk: {response.text}")  # If not successful, print error message
            else:
                print(f"Data sent to Splunk: {splunk_event}")  # If successful, print the event that was sent
        
        # Return a successful response to indicate that data was processed without errors
        return {"statusCode": 200, "body": "Data processed successfully"}
    
    except Exception as e:
        # Catch any exceptions during execution and log the error message
        print(f"Error: {str(e)}")
        
        # Return a failure response with the error message
        return {"statusCode": 500, "body": f"Error: {str(e)}"}