Hello,

…creates a race condition among threads between GET and CREATE, and is not an exactly-once solution. Better for the first action on the DB to be a PUT with “attribute_not_exists” on some attribute.
Your method creates a race condition among threads between GET and CREATE, and is not an…
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Michael Sierchio
Ross Rhodes
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1 min read·
Nov 9, 2019
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Hello,
The PUT operation proposed in this solution is already using DynamoDB’s conditional expressions to address the possibility you raise.
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Written by Ross Rhodes794 Followers
·71 Following
Senior Software Engineer developing event-driven serverless systems at Kraken. Working primarily with AWS, Node.js, and Python. Views expressed here are my own.
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