[Solved] You run this code to add an item to DynamoDB:const command = new PutItemCommand({ TableName: 'Orders', Item: { orderId: '001', amount: 100 } }); await client.send(command);Why does it throw an error? | DynamoDB

DynamoDB - with AWS SDK

You run this code to add an item to DynamoDB:

const command = new PutItemCommand({ TableName: 'Orders', Item: { orderId: '001', amount: 100 } });
await client.send(command);

Why does it throw an error?

APutItemCommand requires a callback function.

BThe TableName 'Orders' is misspelled.

CThe client was not initialized with a region.

DThe Item attributes lack DynamoDB data types like { S: '001' }.

Step-by-Step Solution

Solution:

Step 1: Review Item format
DynamoDB SDK requires attribute values to specify data types explicitly, e.g., { S: 'string' } or { N: 'number' }.
Step 2: Identify error cause
The provided Item uses plain JavaScript values without type wrappers, causing the error.
Final Answer:
The Item attributes lack DynamoDB data types like { S: '001' }. -> Option D
Quick Check:
Item attributes must include data types [OK]

Quick Trick: DynamoDB Item attributes require explicit data types [OK]

Common Mistakes:

MISTAKES

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You run this code to add an item to DynamoDB: