[Solved] What happens after executing this DynamoDB Document Client put operation?const params = { TableName: 'Inventory', Item: { itemId: 'I200', quantity: 50 } }; await client.put(params);... | DynamoDB

DynamoDB - with AWS SDK

What happens after executing this DynamoDB Document Client put operation?

const params = { TableName: 'Inventory', Item: { itemId: 'I200', quantity: 50 } };
await client.put(params);
const result = await client.get({ TableName: 'Inventory', Key: { itemId: 'I200' } });
console.log(result.Item);

A{ itemId: 'I200', quantity: 50 }

Bnull

CAn error due to missing Key attribute

D{ quantity: 50 }

Step-by-Step Solution

Solution:

Step 1: Understand put operation
The put method inserts or replaces the entire item in the table.
Step 2: Understand get operation
The subsequent get retrieves the item by its key, returning the full item.
Final Answer:
{ itemId: 'I200', quantity: 50 } -> Option A
Quick Check:
Put inserts full item; get returns it [OK]

Quick Trick: Put replaces item; get returns full item [OK]

Common Mistakes:

MISTAKES

Expecting partial item after put
Assuming put requires Key separately
Thinking get returns null after put

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What happens after executing this DynamoDB Document Client put operation?

Step 1: Understand put operation

Step 2: Understand get operation

Final Answer:

Quick Check:

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