s3blog_2.py

import boto3

file_obj = event["Records"][0] # get the current event
bucketname = str(file_obj["s3"]["bucket"]["name"]) #get bucket name from event
filename = str(file_obj["s3"]["object"]["key"]) #get file name from event
    
textract = boto3.client("textract")
response = textract.detect_document_text( 
    Document={
        "S3Object": {
            "Bucket": bucketname,
            "Name": filename,
        }
    }
)