Posted: 9/Jan/2024
Did you know that the DynamoDB GetItem operation also gives you the ability to:
- Switch to strongly consistent read (eventually consistent being the default)
- Use a projection expression to return only some of the attributes
- Return the consumed Read Capacity Units (RCU)
Here is an example (DynamoDB Go SDK):
resp, err := client.GetItem(context.Background(), &dynamodb.GetItemInput{
TableName: aws.String(tableName),
Key: map[string]types.AttributeValue{
//email - partition key
"email": &types.AttributeValueMemberS{Value: email},
},
ConsistentRead: aws.Bool(true),
ProjectionExpression: aws.String("first_name, last_name"),
ReturnConsumedCapacity: types.ReturnConsumedCapacityTotal,
})
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