Amazon DynamoDB is a fully managed proprietary NoSQL database service that supports key–value and document data structures and is offered by Amazon.com as part of the Amazon Web Services portfolio. DynamoDB exposes a similar data model to and derives its name from Dynamo, but has a different underlying implementation....

Problem: What is meant by distributed locks? With distributed locking, we have the same sort of acquire, operate, release operations, but instead of having a lock that's only known by threads within the same process, or processes on the same machine, we use a lock that different Redis clients...

Problem: How to reliably/atomically update the database and send messages/events? The outbox pattern describes an approach for letting services execute these two tasks in a safe and consistent manner; it provides source services with instant "read your own writes" semantics, while offering reliable, eventually consistent data exchange across service...