Posted - 17/Jan/2024
All the DynamoDB write APIs, including DeleteItem support criteria-based (conditional) execution. You can use DeleteItem operation with a condition expression - it must evaluate to true in order for the operation to succeed.
Here is an example that verifies the value of inactive_days attribute:
resp,err:=client.DeleteItem(context.Background(),&dynamodb.DeleteItemInput{TableName:aws.String(tableName),Key:map[string]types.AttributeValue{"email":&types.AttributeValueMemberS{Value:email},},ConditionExpression:aws.String("inactive_days >= :val"),ExpressionAttributeValues:map[string]types.AttributeValue{":val":&types.AttributeValueMemberN{Value:"20"},},})iferr!=nil{ifstrings.Contains(err.Error(),"ConditionalCheckFailedException"){return}else{log.Fatal(err)}}Recommended reading - Conditional deletes documentation