[20 Days of DynamoDB] Day 4 - Conditional UpdateItem

Posted: 11/Jan/2024

Conditional operations are helpful in cases when you want a DynamoDB write operation (PutItem, UpdateItem or DeleteItem) to be executed based on a certain criteria. To do so, use a condition expression - it must evaluate to true in order for the operation to succeed.

Here is an example that demonstrates a conditional UpdateItem operation. It uses the attribute_not_exists function:

    resp, err := client.UpdateItem(context.Background(), &dynamodb. …

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