Postman AWS S3 snapshot request Elasticsearch
It looks like you are not passing AWS credentials with this request.
There is a detailed guide how to make a Postman request with AWS authentication here: Use Postman to Call an API.
Your Postman window might look like this:
To do the same from python please check out Sample python client section of this documentation page, note that AWS4Auth object is created and it's passed as auth parameter to requests.put():
credentials = boto3.Session().get_credentials()awsauth = AWS4Auth(credentials.access_key, credentials.secret_key, region, service, session_token=credentials.token)# Register repositorypath = '_snapshot/my-snapshot-repo' # the Elasticsearch API endpointurl = host + pathpayload = { ...}headers = {"Content-Type": "application/json"}r = requests.put(url, auth=awsauth, json=payload, headers=headers)Hope that helps!