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Error: dynamodb: one or more parameter values were invalid: type mismatch for index key

What's Causing This Error

You may run into this error when you try to update and insert a new item to a DynamoDB table by using invalid data types for the attributes.

If you've pre-defined attributes (AttributeDefinitions) to be used as the partition and range keys for your GSIs and table, you most likely selected a data type varying from a String, Number, or a Binary (Map).

Hence, the AttributeDefinitions need to be preserved when creating or updating data.

Solution - Here's How To Resolve It

Verify that the attributes in your item are a part of the AttributeDenitions which use the same data type specified during the creation time.

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