boto3 has generate_presigned_url which should be exposed in the Hook:
generate_presigned_url(ClientMethod, Params=None, ExpiresIn=3600, HttpMethod=None)
Generate a presigned url given a client, its method, and arguments
- ClientMethod (string) – The client method to presign for
- Params (dict) – The parameters normally passed to ClientMethod.
- ExpiresIn (int) – The number of seconds the presigned url is valid for. By default it expires in an hour (3600 seconds)
- HttpMethod (string) – The http method to use on the generated url. By default, the http method is whatever is used in the method's model.
Returns The presigned url