PutItem

Creates a new item or replaces an existing item with the same primary key. Use ConditionExpression to prevent accidental overwrites.

Syntax

dynamodb

await docClient.send(new PutCommand({ TableName, Item, ConditionExpression }))

Example

dynamodb

await docClient.send(new PutCommand({
  TableName: 'Users',
  Item: { PK: 'USER#alice', SK: 'PROFILE', name: 'Alice' },
  ConditionExpression: 'attribute_not_exists(PK)',
}));