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I am trying to implement PATCH - application/merge-patch+json for my application. I need to update nested dictionaries depending on the request that comes in.

Now, at the backend, this data is stored in DynamoDB. I can't figure out how to build the dynamoDB.updateItem payload dynamically. I.e. set_expression, name_attributes and attribute_values.

I tried following the answer here https://stackoverflow.com/a/71110148 but the while loop is misplaced in the code and I can't figure out what all needs to be nested under it.

Any help is appreciated. Thanks.

GothamCity
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  • I found an alternative approach by handling this inside python code itself using the json-merge-patch library https://github.com/OpenDataServices/json-merge-patch . – GothamCity Oct 18 '22 at 22:10

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