1 1 | // Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
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2 - | pub use crate::operation::batch_write_item::_batch_write_item_output::BatchWriteItemOutputBuilder;
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3 - |
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4 2 | pub use crate::operation::batch_write_item::_batch_write_item_input::BatchWriteItemInputBuilder;
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5 3 |
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4 + | pub use crate::operation::batch_write_item::_batch_write_item_output::BatchWriteItemOutputBuilder;
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5 + |
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6 6 | impl crate::operation::batch_write_item::builders::BatchWriteItemInputBuilder {
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7 7 | /// Sends a request with this input using the given client.
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8 8 | pub async fn send_with(
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9 9 | self,
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10 10 | client: &crate::Client,
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11 11 | ) -> ::std::result::Result<
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12 12 | crate::operation::batch_write_item::BatchWriteItemOutput,
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13 13 | ::aws_smithy_runtime_api::client::result::SdkError<
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14 14 | crate::operation::batch_write_item::BatchWriteItemError,
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15 15 | ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
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16 16 | >,
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17 17 | > {
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18 18 | let mut fluent_builder = client.batch_write_item();
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19 19 | fluent_builder.inner = self;
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20 20 | fluent_builder.send().await
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21 21 | }
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22 22 | }
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23 23 | /// Fluent builder constructing a request to `BatchWriteItem`.
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24 24 | ///
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25 25 | /// <p>The <code>BatchWriteItem</code> operation puts or deletes multiple items in one or more tables. A single call to <code>BatchWriteItem</code> can transmit up to 16MB of data over the network, consisting of up to 25 item put or delete operations. While individual items can be up to 400 KB once stored, it's important to note that an item's representation might be greater than 400KB while being sent in DynamoDB's JSON format for the API call. For more details on this distinction, see <a href="https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.NamingRulesDataTypes.html">Naming Rules and Data Types</a>.</p><note>
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26 26 | /// <p><code>BatchWriteItem</code> cannot update items. If you perform a <code>BatchWriteItem</code> operation on an existing item, that item's values will be overwritten by the operation and it will appear like it was updated. To update items, we recommend you use the <code>UpdateItem</code> action.</p>
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27 27 | /// </note>
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28 28 | /// <p>The individual <code>PutItem</code> and <code>DeleteItem</code> operations specified in <code>BatchWriteItem</code> are atomic; however <code>BatchWriteItem</code> as a whole is not. If any requested operations fail because the table's provisioned throughput is exceeded or an internal processing failure occurs, the failed operations are returned in the <code>UnprocessedItems</code> response parameter. You can investigate and optionally resend the requests. Typically, you would call <code>BatchWriteItem</code> in a loop. Each iteration would check for unprocessed items and submit a new <code>BatchWriteItem</code> request with those unprocessed items until all items have been processed.</p>
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29 29 | /// <p>For tables and indexes with provisioned capacity, if none of the items can be processed due to insufficient provisioned throughput on all of the tables in the request, then <code>BatchWriteItem</code> returns a <code>ProvisionedThroughputExceededException</code>. For all tables and indexes, if none of the items can be processed due to other throttling scenarios (such as exceeding partition level limits), then <code>BatchWriteItem</code> returns a <code>ThrottlingException</code>.</p><important>
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30 30 | /// <p>If DynamoDB returns any unprocessed items, you should retry the batch operation on those items. However, <i>we strongly recommend that you use an exponential backoff algorithm</i>. If you retry the batch operation immediately, the underlying read or write requests can still fail due to throttling on the individual tables. If you delay the batch operation using exponential backoff, the individual requests in the batch are much more likely to succeed.</p>
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31 31 | /// <p>For more information, see <a href="https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/ErrorHandling.html#Programming.Errors.BatchOperations">Batch Operations and Error Handling</a> in the <i>Amazon DynamoDB Developer Guide</i>.</p>
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32 32 | /// </important>
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33 33 | /// <p>With <code>BatchWriteItem</code>, you can efficiently write or delete large amounts of data, such as from Amazon EMR, or copy data from another database into DynamoDB. In order to improve performance with these large-scale operations, <code>BatchWriteItem</code> does not behave in the same way as individual <code>PutItem</code> and <code>DeleteItem</code> calls would. For example, you cannot specify conditions on individual put and delete requests, and <code>BatchWriteItem</code> does not return deleted items in the response.</p>
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34 34 | /// <p>If you use a programming language that supports concurrency, you can use threads to write items in parallel. Your application must include the necessary logic to manage the threads. With languages that don't support threading, you must update or delete the specified items one at a time. In both situations, <code>BatchWriteItem</code> performs the specified put and delete operations in parallel, giving you the power of the thread pool approach without having to introduce complexity into your application.</p>
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35 35 | /// <p>Parallel processing reduces latency, but each specified put and delete request consumes the same number of write capacity units whether it is processed in parallel or not. Delete operations on nonexistent items consume one write capacity unit.</p>
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