Adding a word to dynamoDB table

If I need to add a word to dynamoDB table, I use the lambda function. The function URL looks like this...

https://z2zsnbwispdo5gh2z544bkblbe0amxfb.lambda-url.us-east-1.on.aws/?धर्माद

And the code is as follows:

import boto3
import urllib.parse

def lambda_handler(event, context):
    request_body = event['rawQueryString']
    print (request_body)

    dynamodb = boto3.resource('dynamodb')
    table = dynamodb.Table('sanskrit')
    key = { 'pk': urllib.parse.unquote(request_body)}
    table.put_item( Item=key )

    return {
        'statusCode': 200,
        'body': 'success'
    }

It saves the word "धर्माद" to the dynamoDB table "sanskrit".