Is there any API in DynamoDB to update a batch of items? There is an API to write new items in batches (BatchWriteItem) and update single item using UpdateIte
BatchWriteItem
UpdateIte
No there is no batch update currently , you can use a single update Item call and have a workflow over it like AWS SWF or AWS step functions
https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB/DocumentClient.html