best practices for items has a slick demo for keeping track of multiple items that could be too long for the item length in DynamoDB.

This is an attempt to implement a client that can automatically chunk up large upsert requests. It writes multiple versions of the chunks as well as a map item that keeps track of the chunks.

If there are concurrent Upsert calls racing one another, only the call made most recently will succeed when trying to update the map item.

• table of "ItemMap" with PK of "ID" of type Number
• table of "ItemChunks" with PK of "ID" of type String

• get rid of panic(err) junk
• handle 400: ConditionalCheckFailedException: The conditional request failed
• increase granularity of ItemMap.UpdateTime beyond seconds
• test with a lot of concurrency
• make a script to create table with prerequisites
• interfaces
• add clean up script that kills orphaned ItemChunks that could be run in the background
• configurable max chunk size