One of the attributes in my DynamoDB table is a list called REQUEST_IDS, and I want to check the length of that list to see if it satisfies a condition (less than 10) before update the item. How can I refer to the array length in my ConditionExpression in nodejs? Is this doable?
DynamoDB conditional update by checking the attribute value length
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1 Answers
You are looking for the conditional operation size (docs)
In your case: ConditionExpression: 'size(REQIEST_IDS) < 10
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