Programmatically Working With Our DynamoDB Table
Code snippets for this tutorial:
import boto3 # Initialize a DynamoDB client dynamodb = boto3.resource('dynamodb') # represent table in Python table = dynamodb.Table('customer-accounts') # sample customer customer = { 'customer_id': 1010, 'join_date': '2024-06-04', 'name': 'Patsy Smith', 'age': 38 } # add customer to table try: table.put_item(Item=customer) print("Result: Customer added successfully.") except Exception as e: print(f"Result: Failed to add customer: {str(e)}")
Code snippets for this tutorial:
import boto3 # Initialize a DynamoDB client dynamodb = boto3.resource('dynamodb') # represent table in Python table = dynamodb.Table('customer-accounts') # count table records using scan (be careful when table is large) response = table.scan(Select='COUNT') print(response['Count']) # return all records using scan (be careful when table is large) response = table.scan() for item in response['Items']: print(item) # retrieve results using "query" response = table.query(KeyConditionExpression='customer_id = :id AND join_date = :date', ExpressionAttributeValues={':id': 1010, ':date': '2024-06-04'}) for item in response['Items']: print(item) # retrieve results using "scan" response = table.scan(FilterExpression='age > :age', ExpressionAttributeValues={':age': 30}) for item in response['Items']: print(item) ######################################################################### # IMPORTANT - DELETE OUR TABLE !! ######################################################################### try: table.delete() print("Deletion of table has started") table.wait_until_not_exists() print("Deletion of table has finished") except Exception as e: print(f"Error deleting table: {e}")