Organizations often use a multi-account architecture for security and isolation. However, with your Amazon DynamoDB tables now in one account, you might need to process their stream events in another. Until recently, this meant routing through Amazon Kinesis Data Streams or building custom relay infrastructure with cross-account AWS Identity and Access Management (IAM) roles, adding unwanted complexity. Resource-based policies for Amazon DynamoDB Streams now helps you avoid these workarounds. Your AWS Lambda functions can directly consume streams across accounts with no custom infrastructure required.
DynamoDB is a serverless, fully managed, distributed NoSQL database with single-digit millisecond performance at scale. You can build modern, high-performance applications without managing infrastructure. One of its key features is DynamoDB Streams, which captures data changes in near real time. This capability supports use cases such as audit logging, search indexing,…