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@aws-sdk/client-dynamodb

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AWS SDK for JavaScript Dynamodb Client for Node.js, Browser and React Native

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import { Command as $Command } from "@smithy/smithy-client"; import { MetadataBearer as __MetadataBearer } from "@smithy/types"; import { DynamoDBClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../DynamoDBClient"; import { UpdateItemInput, UpdateItemOutput } from "../models/models_0"; /** * @public */ export type { __MetadataBearer }; export { $Command }; /** * @public * * The input for {@link UpdateItemCommand}. */ export interface UpdateItemCommandInput extends UpdateItemInput { } /** * @public * * The output of {@link UpdateItemCommand}. */ export interface UpdateItemCommandOutput extends UpdateItemOutput, __MetadataBearer { } declare const UpdateItemCommand_base: { new (input: UpdateItemCommandInput): import("@smithy/smithy-client").CommandImpl<UpdateItemCommandInput, UpdateItemCommandOutput, DynamoDBClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>; new (__0_0: UpdateItemCommandInput): import("@smithy/smithy-client").CommandImpl<UpdateItemCommandInput, UpdateItemCommandOutput, DynamoDBClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>; getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions; }; /** * <p>Edits an existing item's attributes, or adds a new item to the table if it does not * already exist. You can put, delete, or add attribute values. You can also perform a * conditional update on an existing item (insert a new attribute name-value pair if it * doesn't exist, or replace an existing name-value pair if it has certain expected * attribute values).</p> * <p>You can also return the item's attribute values in the same <code>UpdateItem</code> * operation using the <code>ReturnValues</code> parameter.</p> * @example * Use a bare-bones client and the command you need to make an API call. * ```javascript * import { DynamoDBClient, UpdateItemCommand } from "@aws-sdk/client-dynamodb"; // ES Modules import * // const { DynamoDBClient, UpdateItemCommand } = require("@aws-sdk/client-dynamodb"); // CommonJS import * const client = new DynamoDBClient(config); * const input = { // UpdateItemInput * TableName: "STRING_VALUE", // required * Key: { // Key // required * "<keys>": { // AttributeValue Union: only one key present * S: "STRING_VALUE", * N: "STRING_VALUE", * B: new Uint8Array(), // e.g. Buffer.from("") or new TextEncoder().encode("") * SS: [ // StringSetAttributeValue * "STRING_VALUE", * ], * NS: [ // NumberSetAttributeValue * "STRING_VALUE", * ], * BS: [ // BinarySetAttributeValue * new Uint8Array(), // e.g. Buffer.from("") or new TextEncoder().encode("") * ], * M: { // MapAttributeValue * "<keys>": {// Union: only one key present * S: "STRING_VALUE", * N: "STRING_VALUE", * B: new Uint8Array(), // e.g. Buffer.from("") or new TextEncoder().encode("") * SS: [ * "STRING_VALUE", * ], * NS: [ * "STRING_VALUE", * ], * BS: [ * new Uint8Array(), // e.g. Buffer.from("") or new TextEncoder().encode("") * ], * M: { * "<keys>": "<AttributeValue>", * }, * L: [ // ListAttributeValue * "<AttributeValue>", * ], * NULL: true || false, * BOOL: true || false, * }, * }, * L: [ * "<AttributeValue>", * ], * NULL: true || false, * BOOL: true || false, * }, * }, * AttributeUpdates: { // AttributeUpdates * "<keys>": { // AttributeValueUpdate * Value: "<AttributeValue>", * Action: "ADD" || "PUT" || "DELETE", * }, * }, * Expected: { // ExpectedAttributeMap * "<keys>": { // ExpectedAttributeValue * Value: "<AttributeValue>", * Exists: true || false, * ComparisonOperator: "EQ" || "NE" || "IN" || "LE" || "LT" || "GE" || "GT" || "BETWEEN" || "NOT_NULL" || "NULL" || "CONTAINS" || "NOT_CONTAINS" || "BEGINS_WITH", * AttributeValueList: [ // AttributeValueList * "<AttributeValue>", * ], * }, * }, * ConditionalOperator: "AND" || "OR", * ReturnValues: "NONE" || "ALL_OLD" || "UPDATED_OLD" || "ALL_NEW" || "UPDATED_NEW", * ReturnConsumedCapacity: "INDEXES" || "TOTAL" || "NONE", * ReturnItemCollectionMetrics: "SIZE" || "NONE", * UpdateExpression: "STRING_VALUE", * ConditionExpression: "STRING_VALUE", * ExpressionAttributeNames: { // ExpressionAttributeNameMap * "<keys>": "STRING_VALUE", * }, * ExpressionAttributeValues: { // ExpressionAttributeValueMap * "<keys>": "<AttributeValue>", * }, * ReturnValuesOnConditionCheckFailure: "ALL_OLD" || "NONE", * }; * const command = new UpdateItemCommand(input); * const response = await client.send(command); * // { // UpdateItemOutput * // Attributes: { // AttributeMap * // "<keys>": { // AttributeValue Union: only one key present * // S: "STRING_VALUE", * // N: "STRING_VALUE", * // B: new Uint8Array(), * // SS: [ // StringSetAttributeValue * // "STRING_VALUE", * // ], * // NS: [ // NumberSetAttributeValue * // "STRING_VALUE", * // ], * // BS: [ // BinarySetAttributeValue * // new Uint8Array(), * // ], * // M: { // MapAttributeValue * // "<keys>": {// Union: only one key present * // S: "STRING_VALUE", * // N: "STRING_VALUE", * // B: new Uint8Array(), * // SS: [ * // "STRING_VALUE", * // ], * // NS: [ * // "STRING_VALUE", * // ], * // BS: [ * // new Uint8Array(), * // ], * // M: { * // "<keys>": "<AttributeValue>", * // }, * // L: [ // ListAttributeValue * // "<AttributeValue>", * // ], * // NULL: true || false, * // BOOL: true || false, * // }, * // }, * // L: [ * // "<AttributeValue>", * // ], * // NULL: true || false, * // BOOL: true || false, * // }, * // }, * // ConsumedCapacity: { // ConsumedCapacity * // TableName: "STRING_VALUE", * // CapacityUnits: Number("double"), * // ReadCapacityUnits: Number("double"), * // WriteCapacityUnits: Number("double"), * // Table: { // Capacity * // ReadCapacityUnits: Number("double"), * // WriteCapacityUnits: Number("double"), * // CapacityUnits: Number("double"), * // }, * // LocalSecondaryIndexes: { // SecondaryIndexesCapacityMap * // "<keys>": { * // ReadCapacityUnits: Number("double"), * // WriteCapacityUnits: Number("double"), * // CapacityUnits: Number("double"), * // }, * // }, * // GlobalSecondaryIndexes: { * // "<keys>": { * // ReadCapacityUnits: Number("double"), * // WriteCapacityUnits: Number("double"), * // CapacityUnits: Number("double"), * // }, * // }, * // }, * // ItemCollectionMetrics: { // ItemCollectionMetrics * // ItemCollectionKey: { // ItemCollectionKeyAttributeMap * // "<keys>": "<AttributeValue>", * // }, * // SizeEstimateRangeGB: [ // ItemCollectionSizeEstimateRange * // Number("double"), * // ], * // }, * // }; * * ``` * * @param UpdateItemCommandInput - {@link UpdateItemCommandInput} * @returns {@link UpdateItemCommandOutput} * @see {@link UpdateItemCommandInput} for command's `input` shape. * @see {@link UpdateItemCommandOutput} for command's `response` shape. * @see {@link DynamoDBClientResolvedConfig | config} for DynamoDBClient's `config` shape. * * @throws {@link ConditionalCheckFailedException} (client fault) * <p>A condition specified in the operation could not be evaluated.</p> * * @throws {@link InternalServerError} (server fault) * <p>An error occurred on the server side.</p> * * @throws {@link InvalidEndpointException} (client fault) * * @throws {@link ItemCollectionSizeLimitExceededException} (client fault) * <p>An item collection is too large. This exception is only returned for tables that * have one or more local secondary indexes.</p> * * @throws {@link ProvisionedThroughputExceededException} (client fault) * <p>Your request rate is too high. The Amazon Web Services SDKs for DynamoDB * automatically retry requests that receive this exception. Your request is eventually * successful, unless your retry queue is too large to finish. Reduce the frequency of * requests and use exponential backoff. For more information, go to <a href="https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.Errors.html#Programming.Errors.RetryAndBackoff">Error Retries and Exponential Backoff</a> in the <i>Amazon DynamoDB Developer Guide</i>.</p> * * @throws {@link ReplicatedWriteConflictException} (client fault) * <p>The request was rejected because one or more items in the request are being modified by a request in another Region. </p> * * @throws {@link RequestLimitExceeded} (client fault) * <p>Throughput exceeds the current throughput quota for your account. Please contact * <a href="https://aws.amazon.com/support">Amazon Web Services Support</a> to request a * quota increase.</p> * * @throws {@link ResourceNotFoundException} (client fault) * <p>The operation tried to access a nonexistent table or index. The resource might not * be specified correctly, or its status might not be <code>ACTIVE</code>.</p> * * @throws {@link TransactionConflictException} (client fault) * <p>Operation was rejected because there is an ongoing transaction for the * item.</p> * * @throws {@link DynamoDBServiceException} * <p>Base exception class for all service exceptions from DynamoDB service.</p> * * @public * @example To update an item in a table * ```javascript * // This example updates an item in the Music table. It adds a new attribute (Year) and modifies the AlbumTitle attribute. All of the attributes in the item, as they appear after the update, are returned in the response. * const input = { * "ExpressionAttributeNames": { * "#AT": "AlbumTitle", * "#Y": "Year" * }, * "ExpressionAttributeValues": { * ":t": { * "S": "Louder Than Ever" * }, * ":y": { * "N": "2015" * } * }, * "Key": { * "Artist": { * "S": "Acme Band" * }, * "SongTitle": { * "S": "Happy Day" * } * }, * "ReturnValues": "ALL_NEW", * "TableName": "Music", * "UpdateExpression": "SET #Y = :y, #AT = :t" * }; * const command = new UpdateItemCommand(input); * const response = await client.send(command); * /* response == * { * "Attributes": { * "AlbumTitle": { * "S": "Louder Than Ever" * }, * "Artist": { * "S": "Acme Band" * }, * "SongTitle": { * "S": "Happy Day" * }, * "Year": { * "N": "2015" * } * } * } * *\/ * // example id: to-update-an-item-in-a-table-1476118250055 * ``` * */ export declare class UpdateItemCommand extends UpdateItemCommand_base { /** @internal type navigation helper, not in runtime. */ protected static __types: { api: { input: UpdateItemInput; output: UpdateItemOutput; }; sdk: { input: UpdateItemCommandInput; output: UpdateItemCommandOutput; }; }; }