AWS boto3 Difference between batch writer and batch write item

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I'm currently applying boto3 with dynamodb, and I noticed that there are two types of batch write

batch_writer is used in tutorial, and it seems like you can just iterate through different JSON objects to do insert (this is just one example, of course)

batch_write_items seems to me is a dynamo-specific function. However, I'm not 100% sure about this, and I'm not sure what's the difference between these two functions (performance, methodology, what not)

Do they do the same thing? If they are, why having 2 different functions? If they're not, what's the difference? How's the performance comparison?
Sep 25, 2018 in AWS by bug_seeker
• 15,520 points
4,140 views

1 answer to this question.

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As far as I understand and use these APIs, with the batch_write_item(), you can even handle the data for more than one table in one query. But with batch_writer(), it means you are going to specify the actions are only applicable for a certain table. I think that should be the very basic difference I can tell you.

answered Sep 25, 2018 by Priyaj
• 58,100 points

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