<ul><li>Understand your access patterns: Before designing with DynamoDB, it is important to identify and understand the data access patterns of the application.</li><li>Partition Key design lets you scale: Designing high cardinality partition keys like 'userID' or 'productID' helps in scaling the database efficiently.</li><li>Sort Key design lets you filter: Instead of using FilterExpression method, it is better to use sort keys to filter data in DynamoDB.</li><li>Using begins_with() operator on sort keys enables powerful filtering based on specific attributes like room features and view type.</li></ul>

I Spent 5 Years Building With DynamoDB, Here Are My 3 Top Takeaways

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