BatchWriteItem in DynamoDB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the DynamoDB table name in the BatchWriteItem request.

DynamoDB

batch_write_params = {
    'RequestItems': {
        '[1]': []
    }
}

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ATableName

BMyTable

CItems

DRequestItems

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'TableName' or 'Items' as the key instead of the actual table name.

Using 'RequestItems' as the key inside 'RequestItems'.

The key inside 'RequestItems' must be the exact table name where you want to write items.

2fill in blank

medium

Complete the code to add a PutRequest with an item containing 'id' and 'name' attributes.

DynamoDB

batch_write_params = {
    'RequestItems': {
        'MyTable': [
            {'[1]': {'Item': {'id': {'S': '123'}, 'name': {'S': 'Alice'}}}}
        ]
    }
}

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ADeleteRequest

BUpdateRequest

CPutRequest

DWriteRequest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'DeleteRequest' when trying to add an item.

Using 'UpdateRequest' which is not valid in BatchWriteItem.

In BatchWriteItem, to add or replace an item, you use 'PutRequest'.

3fill in blank

hard

Fix the error in the BatchWriteItem call by completing the missing parameter name.

DynamoDB

response = dynamodb.[1](RequestItems=batch_write_params['RequestItems'])

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Aput_item

Bbatch_write

Cwrite_batch

Dbatch_write_item

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'put_item' which only writes one item.

Using 'write_batch' or 'batch_write' which are not valid method names.

The correct method to write multiple items in batch is 'batch_write_item'.

4fill in blank

hard

Fill both blanks to add a DeleteRequest for an item with primary key 'id' equal to '456'.

DynamoDB

batch_write_params = {
    'RequestItems': {
        'MyTable': [
            {'[1]': {'Key': {'id': {'S': '[2]'}}}}
        ]
    }
}

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ADeleteRequest

BPutRequest

C123

D456

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'PutRequest' instead of 'DeleteRequest' for deletion.

Using the wrong id value.

To delete an item, use 'DeleteRequest' and specify the key with the correct id value.

5fill in blank

hard

Fill all three blanks to create a BatchWriteItem request with one PutRequest and one DeleteRequest.

DynamoDB

batch_write_params = {
    'RequestItems': {
        'MyTable': [
            {'[1]': {'Item': {'id': {'S': '789'}, 'name': {'S': 'Bob'}}}},
            {'[2]': {'Key': {'id': {'S': '[3]'}}}}
        ]
    }
}

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APutRequest

BDeleteRequest

C101

D202

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up PutRequest and DeleteRequest.

Using an incorrect id value for deletion.

The first request is a PutRequest to add an item. The second is a DeleteRequest to remove the item with id '202'.