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Showing content from https://cloud.google.com/nodejs/docs/reference/datastore/6.5.0/datastore/datastorerequest below:

Class DatastoreRequest | Node.js client library

Skip to main content Class DatastoreRequest

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Handle logic for Datastore API operations. Handles request logic for Datastore.

Creates requests to the Datastore endpoint. Designed to be inherited by the Datastore and Transaction classes.

Package@google-cloud/datastore Properties datastore Property Value Type Description Datastore id Property Value Type Description string | undefined requestCallbacks_

requestCallbacks_: Array<(err: Error | null, resp: Entity | null) => void> | Entity;

Property Value Type Description Array<(err: Error | null, resp: Entity | null) => void> | Entity requests_

requests_: Entity | {
        mutations: Array<{}>;
    };

Property Value Type Description Entity | { mutations: Array<{}>; } Methods allocateIds(key, options)

allocateIds(key: entity.Key, options: AllocateIdsOptions | number): Promise<AllocateIdsResponse>;

Parameters Name Description key entity.Key
options AllocateIdsOptions | number
Returns Type Description Promise<AllocateIdsResponse> allocateIds(key, options, callback)

allocateIds(key: entity.Key, options: AllocateIdsOptions | number, callback: AllocateIdsCallback): void;

Parameters Name Description key entity.Key
options AllocateIdsOptions | number
callback AllocateIdsCallback
Returns createReadStream(keys, options)

createReadStream(keys: Entities, options?: CreateReadStreamOptions): Transform;

Retrieve the entities as a readable object stream.

Parameters Name Description keys Entities

Datastore key object(s).

options CreateReadStreamOptions

Optional configuration. See for a complete list of options.

Returns Type Description Transform delete(keys, gaxOptions)

delete(keys: Entities, gaxOptions?: CallOptions): Promise<DeleteResponse>;

Parameters Name Description keys Entities
gaxOptions CallOptions
Returns Type Description Promise<DeleteResponse> delete(keys, callback)

delete(keys: Entities, callback: DeleteCallback): void;

Parameters Name Description keys Entities
callback DeleteCallback
Returns delete(keys, gaxOptions, callback)

delete(keys: Entities, gaxOptions: CallOptions, callback: DeleteCallback): void;

Parameters Name Description keys Entities
gaxOptions CallOptions
callback DeleteCallback
Returns get(keys, options)

get(keys: entity.Key | entity.Key[], options?: CreateReadStreamOptions): Promise<GetResponse>;

Parameters Name Description keys entity.Key | entity.Key[]
options CreateReadStreamOptions
Returns Type Description Promise<GetResponse> get(keys, callback)

get(keys: entity.Key | entity.Key[], callback: GetCallback): void;

Parameters Name Description keys entity.Key | entity.Key[]
callback GetCallback
Returns get(keys, options, callback)

get(keys: entity.Key | entity.Key[], options: CreateReadStreamOptions, callback: GetCallback): void;

Parameters Name Description keys entity.Key | entity.Key[]
options CreateReadStreamOptions
callback GetCallback
Returns merge(entities)

merge(entities: Entities): Promise<CommitResponse>;

Parameter Name Description entities Entities
Returns Type Description Promise<CommitResponse> merge(entities, callback)

merge(entities: Entities, callback: SaveCallback): void;

Parameters Name Description entities Entities
callback SaveCallback
Returns prepareGaxRequest_(config, callback)

prepareGaxRequest_(config: RequestConfig, callback: Function): void;

Parameters Name Description config RequestConfig
callback Function
Returns request_(config, callback)

request_(config: RequestConfig, callback: RequestCallback): void;

Parameters Name Description config RequestConfig
callback RequestCallback
Returns requestStream_(config)

requestStream_(config: RequestConfig): AbortableDuplex;

Make a request as a stream.

Parameter Name Description config RequestConfig

Configuration object.

Returns Type Description AbortableDuplex runQuery(query, options)

runQuery(query: Query, options?: RunQueryOptions): Promise<RunQueryResponse>;

Parameters Name Description query Query
options RunQueryOptions
Returns Type Description Promise<RunQueryResponse> runQuery(query, options, callback)

runQuery(query: Query, options: RunQueryOptions, callback: RunQueryCallback): void;

Parameters Name Description query Query
options RunQueryOptions
callback RunQueryCallback
Returns runQuery(query, callback)

runQuery(query: Query, callback: RunQueryCallback): void;

Parameters Name Description query Query
callback RunQueryCallback
Returns runQueryStream(query, options)

runQueryStream(query: Query, options?: RunQueryStreamOptions): Transform;

Get a list of entities as a readable object stream.

See for a list of all available options.

Parameters Name Description query Query

Query object.

options RunQueryStreamOptions

Optional configuration.

Returns Type Description Transform

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-07 UTC.

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