Updating an Asset (ArkTS)

Available APIs

You can use update(query: AssetMap, attributesToUpdate: AssetMap) (asynchronous API) or updateSync(query: AssetMap, attributesToUpdate: AssetMap) (synchronous API) to update an asset.

The following table describes the attributes of AssetMap for updating an asset.

NOTE

In the following table, the attributes ALIAS and those containing DATA_LABEL are custom asset attributes reserved for services. These attributes are not encrypted. Therefore, do not put sensitive personal data in these attributes.

Attributes in query:

Attribute Name (Tag)	Value	Mandatory	Description
ALIAS	Type: Uint8Array Length: 1-256 bytes	Yes	Asset alias, which uniquely identifies an asset.
ACCESSIBILITY	Type: number Value range: see Accessibility	No	Access control based on the lock screen status.
REQUIRE_PASSWORD_SET	Type: Boolean	No	Whether the asset is accessible only when a lock screen password is set. The value true means the asset is accessible only when a lock screen password is set. The value false means that the asset can be accessed regardless of whether a lock screen password is set.
AUTH_TYPE	Type: number Value range: see AuthType	No	Type of user authentication required for accessing the asset.
SYNC_TYPE	Type: number Value range: see SyncType	No	Asset sync type.
IS_PERSISTENT	Type: Boolean	No	Whether to retain the asset when the application is uninstalled. The value true means to retain the asset even after the application is uninstalled. The value false means the opposite.
DATA_LABEL_CRITICAL_1	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service with integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_CRITICAL_2	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service with integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_CRITICAL_3	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service with integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_CRITICAL_4	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service with integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_1	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_2	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_3	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_4	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_LOCAL_1¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.
DATA_LABEL_NORMAL_LOCAL_2¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.
DATA_LABEL_NORMAL_LOCAL_3¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.
DATA_LABEL_NORMAL_LOCAL_4¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.
REQUIRE_ATTR_ENCRYPTED¹⁴⁺	Type: Boolean	No	Whether to update the encrypted data of service customized supplementary information. The value true means to update the encrypted data of service customized supplementary information; the value false means to update the non-encrypted data of service customized supplementary information. Default value: false.
GROUP_ID¹⁸⁺	Type: Uint8Array Length: 7-127 bytes	No	Group to which the asset to be updated belongs. By default, this parameter is not specified.

Attributes in attributesToUpdate:

Attribute Name (Tag)	Value	Mandatory	Description
SECRET	Type: Uint8Array Length: 1-1024 bytes	No	Asset in plaintext.
DATA_LABEL_NORMAL_1	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_2	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_3	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_4	Type: Uint8Array Length: 1-2048 bytes	No	Asset attribute information customized by the service without integrity protection. NOTE: The data length is 1 to 512 bytes before API version 12.
DATA_LABEL_NORMAL_LOCAL_1¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.
DATA_LABEL_NORMAL_LOCAL_2¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.
DATA_LABEL_NORMAL_LOCAL_3¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.
DATA_LABEL_NORMAL_LOCAL_4¹²⁺	Type: Uint8Array Length: 1-2048 bytes	No	Local attribute information about the asset. The value is assigned by the service without integrity protection and will not be synced.

Example

NOTE

This module provides asynchronous and synchronous APIs. The following uses the asynchronous APIs as an example. For more information about the APIs, see @ohos.security.asset (Asset Store Service).

For details about how to update an asset in a group, see Updating an asset in a Group.

Before updating an asset, ensure that the asset exists. For details about how to add an asset, see Adding an Asset. Otherwise, the NOT_FOUND error (24000002) is reported.

Update asset demo_alias as follows: change the asset plaintext to demo_pwd_new and additional attribute to demo_label_new.

Include the header file and define the tool function.

import { asset } from '@kit.AssetStoreKit';
import { util } from '@kit.ArkTS';
import { BusinessError } from '@kit.BasicServicesKit';

function stringToArray(str: string): Uint8Array {
  let textEncoder = new util.TextEncoder();
  return textEncoder.encodeInto(str);
}

update.ets

Develop the desired feature.

let query: asset.AssetMap = new Map();
query.set(asset.Tag.ALIAS, stringToArray('demo_alias'));
let attrsToUpdate: asset.AssetMap = new Map();
attrsToUpdate.set(asset.Tag.SECRET, stringToArray('demo_pwd_new'));
attrsToUpdate.set(asset.Tag.DATA_LABEL_NORMAL_1, stringToArray('demo_label_new'));
try {
  asset.update(query, attrsToUpdate).then(() => {
    console.info(`Succeeded in updating Asset.`);
    // ...
  }).catch((err: BusinessError) => {
    console.error(`Failed to update Asset. Code is ${err.code}, message is ${err.message}`);
    // ...
  });
} catch (error) {
  let err = error as BusinessError;
  console.error(`Failed to update Asset. Code is ${err.code}, message is ${err.message}`);
  // ...
}

update.ets