Google Cloud Discovery Engine V1 Client - Class UserEvent (1.3.2)

Reference documentation and code samples for the Google Cloud Discovery Engine V1 Client class UserEvent.

UserEvent captures all metadata information Discovery Engine API needs to know about how end users interact with your website.

Generated from protobuf message google.cloud.discoveryengine.v1.UserEvent

Namespace

Google \ Cloud \ DiscoveryEngine \ V1

Methods

__construct

Constructor.

Parameters
Name Description
data array

Optional. Data for populating the Message object.
↳ event_type string

Required. User event type. Allowed values are: Generic values: * * search: Search for Documents. * * view-item: Detailed page view of a Document. * * view-item-list: View of a panel or ordered list of Documents. * * view-home-page: View of the home page. * * view-category-page: View of a category page, e.g. Home > Men > Jeans Retail-related values: * * add-to-cart: Add an item(s) to cart, e.g. in Retail online shopping * * purchase: Purchase an item(s) Media-related values: * * media-play: Start/resume watching a video, playing a song, etc. * * media-complete: Finished or stopped midway through a video, song, etc.
↳ user_pseudo_id string

Required. A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor log in/out of the website. Do not set the field to the same fixed ID for different users. This mixes the event history of those users together, which results in degraded model quality. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. The field should not contain PII or user-data. We recommend to use Google Analytics Client ID for this field.
↳ engine string

The Engine resource name, in the form of projects/{project}/locations/{location}/collections/{collection_id}/engines/{engine_id}. Optional. Only required for Engine produced user events. For example, user events from blended search.
↳ data_store string

The DataStore resource full name, of the form projects/{project}/locations/{location}/collections/{collection_id}/dataStores/{data_store_id}. Optional. Only required for user events whose data store can't by determined by UserEvent.engine or UserEvent.documents. If data store is set in the parent of write/import/collect user event requests, this field can be omitted.
↳ event_time Google\Protobuf\Timestamp

Only required for UserEventService.ImportUserEvents method. Timestamp of when the user event happened.
↳ user_info UserInfo

Information about the end user.
↳ direct_user_request bool

Should set to true if the request is made directly from the end user, in which case the UserEvent.user_info.user_agent can be populated from the HTTP request. This flag should be set only if the API request is made directly from the end user such as a mobile app (and not if a gateway or a server is processing and pushing the user events). This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent.
↳ session_id string

A unique identifier for tracking a visitor session with a length limit of 128 bytes. A session is an aggregation of an end user behavior in a time span. A general guideline to populate the session_id: 1. If user has no activity for 30 min, a new session_id should be assigned. 2. The session_id should be unique across users, suggest use uuid or add UserEvent.user_pseudo_id as prefix.
↳ page_info PageInfo

Page metadata such as categories and other critical information for certain event types such as view-category-page.
↳ attribution_token string

Token to attribute an API response to user action(s) to trigger the event. Highly recommended for user events that are the result of RecommendationService.Recommend. This field enables accurate attribution of recommendation model performance. The value must be one of: * * RecommendResponse.attribution_token for events that are the result of RecommendationService.Recommend. * * SearchResponse.attribution_token for events that are the result of SearchService.Search. This token enables us to accurately attribute page view or conversion completion back to the event and the particular predict response containing this clicked/purchased product. If user clicks on product K in the recommendation results, pass RecommendResponse.attribution_token as a URL parameter to product K's page. When recording events on product K's page, log the RecommendResponse.attribution_token to this field.
↳ filter string

The filter syntax consists of an expression language for constructing a predicate from one or more fields of the documents being filtered. One example is for search events, the associated SearchRequest may contain a filter expression in SearchRequest.filter conforming to https://google.aip.dev/160#filtering. Similarly, for view-item-list events that are generated from a RecommendRequest, this field may be populated directly from RecommendRequest.filter conforming to https://google.aip.dev/160#filtering. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.
↳ documents array<DocumentInfo>

List of Documents associated with this user event. This field is optional except for the following event types: * * view-item * * add-to-cart * * purchase * * media-play * * media-complete In a search event, this field represents the documents returned to the end user on the current page (the end user may have not finished browsing the whole page yet). When a new page is returned to the end user, after pagination/filtering/ordering even for the same query, a new search event with different UserEvent.documents is desired.
↳ panel PanelInfo

Panel metadata associated with this user event.
↳ search_info SearchInfo

SearchService.Search details related to the event. This field should be set for search event.
↳ completion_info CompletionInfo

CompletionService.CompleteQuery details related to the event. This field should be set for search event when autocomplete function is enabled and the user clicks a suggestion for search.
↳ transaction_info TransactionInfo

The transaction metadata (if any) associated with this user event.
↳ tag_ids array

A list of identifiers for the independent experiment groups this user event belongs to. This is used to distinguish between user events associated with different experiment setups.
↳ promotion_ids array

The promotion IDs if this is an event associated with promotions. Currently, this field is restricted to at most one ID.
↳ attributes array|Google\Protobuf\Internal\MapField

Extra user event features to include in the recommendation model. These attributes must NOT contain data that needs to be parsed or processed further, e.g. JSON or other encodings. If you provide custom attributes for ingested user events, also include them in the user events that you associate with prediction requests. Custom attribute formatting must be consistent between imported events and events provided with prediction requests. This lets the Discovery Engine API use those custom attributes when training models and serving predictions, which helps improve recommendation quality. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned: * * The key must be a UTF-8 encoded string with a length limit of 5,000 characters. * * For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters. * * For number attributes, at most 400 values are allowed. For product recommendations, an example of extra user information is traffic_channel, which is how a user arrives at the site. Users can arrive at the site by coming to the site directly, coming through Google search, or in other ways.
↳ media_info MediaInfo

Media-specific info.

getEventType

Required. User event type. Allowed values are: Generic values:

  • search: Search for Documents.

  • view-item: Detailed page view of a Document.

  • view-item-list: View of a panel or ordered list of Documents.
  • view-home-page: View of the home page.
  • view-category-page: View of a category page, e.g. Home > Men > Jeans Retail-related values:
  • add-to-cart: Add an item(s) to cart, e.g. in Retail online shopping
  • purchase: Purchase an item(s) Media-related values:
  • media-play: Start/resume watching a video, playing a song, etc.
  • media-complete: Finished or stopped midway through a video, song, etc.
Returns
Type Description
string

setEventType

Required. User event type. Allowed values are: Generic values:

  • search: Search for Documents.

  • view-item: Detailed page view of a Document.

  • view-item-list: View of a panel or ordered list of Documents.
  • view-home-page: View of the home page.
  • view-category-page: View of a category page, e.g. Home > Men > Jeans Retail-related values:
  • add-to-cart: Add an item(s) to cart, e.g. in Retail online shopping
  • purchase: Purchase an item(s) Media-related values:
  • media-play: Start/resume watching a video, playing a song, etc.
  • media-complete: Finished or stopped midway through a video, song, etc.
Parameter
Name Description
var string
Returns
Type Description
$this

getUserPseudoId

Required. A unique identifier for tracking visitors.

For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor log in/out of the website. Do not set the field to the same fixed ID for different users. This mixes the event history of those users together, which results in degraded model quality. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. The field should not contain PII or user-data. We recommend to use Google Analytics Client ID for this field.

Returns
Type Description
string

setUserPseudoId

Required. A unique identifier for tracking visitors.

For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor log in/out of the website. Do not set the field to the same fixed ID for different users. This mixes the event history of those users together, which results in degraded model quality. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. The field should not contain PII or user-data. We recommend to use Google Analytics Client ID for this field.

Parameter
Name Description
var string
Returns
Type Description
$this

getEngine

The Engine resource name, in the form of projects/{project}/locations/{location}/collections/{collection_id}/engines/{engine_id}.

Optional. Only required for Engine produced user events. For example, user events from blended search.

Returns
Type Description
string

setEngine

The Engine resource name, in the form of projects/{project}/locations/{location}/collections/{collection_id}/engines/{engine_id}.

Optional. Only required for Engine produced user events. For example, user events from blended search.

Parameter
Name Description
var string
Returns
Type Description
$this

getDataStore

The DataStore resource full name, of the form projects/{project}/locations/{location}/collections/{collection_id}/dataStores/{data_store_id}.

Optional. Only required for user events whose data store can't by determined by UserEvent.engine or UserEvent.documents. If data store is set in the parent of write/import/collect user event requests, this field can be omitted.

Returns
Type Description
string

setDataStore

The DataStore resource full name, of the form projects/{project}/locations/{location}/collections/{collection_id}/dataStores/{data_store_id}.

Optional. Only required for user events whose data store can't by determined by UserEvent.engine or UserEvent.documents. If data store is set in the parent of write/import/collect user event requests, this field can be omitted.

Parameter
Name Description
var string
Returns
Type Description
$this

getEventTime

Only required for UserEventService.ImportUserEvents method. Timestamp of when the user event happened.

Returns
Type Description
Google\Protobuf\Timestamp|null

hasEventTime

clearEventTime

setEventTime

Only required for UserEventService.ImportUserEvents method. Timestamp of when the user event happened.

Parameter
Name Description
var Google\Protobuf\Timestamp
Returns
Type Description
$this

getUserInfo

Information about the end user.

Returns
Type Description
UserInfo|null

hasUserInfo

clearUserInfo

setUserInfo

Information about the end user.

Parameter
Name Description
var UserInfo
Returns
Type Description
$this

getDirectUserRequest

Should set to true if the request is made directly from the end user, in which case the UserEvent.user_info.user_agent can be populated from the HTTP request.

This flag should be set only if the API request is made directly from the end user such as a mobile app (and not if a gateway or a server is processing and pushing the user events). This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent.

Returns
Type Description
bool

setDirectUserRequest

Should set to true if the request is made directly from the end user, in which case the UserEvent.user_info.user_agent can be populated from the HTTP request.

This flag should be set only if the API request is made directly from the end user such as a mobile app (and not if a gateway or a server is processing and pushing the user events). This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent.

Parameter
Name Description
var bool
Returns
Type Description
$this

getSessionId

A unique identifier for tracking a visitor session with a length limit of 128 bytes. A session is an aggregation of an end user behavior in a time span.

A general guideline to populate the session_id:

  1. If user has no activity for 30 min, a new session_id should be assigned.
  2. The session_id should be unique across users, suggest use uuid or add UserEvent.user_pseudo_id as prefix.
Returns
Type Description
string

setSessionId

A unique identifier for tracking a visitor session with a length limit of 128 bytes. A session is an aggregation of an end user behavior in a time span.

A general guideline to populate the session_id:

  1. If user has no activity for 30 min, a new session_id should be assigned.
  2. The session_id should be unique across users, suggest use uuid or add UserEvent.user_pseudo_id as prefix.
Parameter
Name Description
var string
Returns
Type Description
$this

getPageInfo

Page metadata such as categories and other critical information for certain event types such as view-category-page.

Returns
Type Description
PageInfo|null

hasPageInfo

clearPageInfo

setPageInfo

Page metadata such as categories and other critical information for certain event types such as view-category-page.

Parameter
Name Description
var PageInfo
Returns
Type Description
$this

getAttributionToken

Token to attribute an API response to user action(s) to trigger the event.

Highly recommended for user events that are the result of RecommendationService.Recommend. This field enables accurate attribution of recommendation model performance. The value must be one of:

Returns
Type Description
string

setAttributionToken

Token to attribute an API response to user action(s) to trigger the event.

Highly recommended for user events that are the result of RecommendationService.Recommend. This field enables accurate attribution of recommendation model performance. The value must be one of:

Parameter
Name Description
var string
Returns
Type Description
$this

getFilter

The filter syntax consists of an expression language for constructing a predicate from one or more fields of the documents being filtered.

One example is for search events, the associated SearchRequest may contain a filter expression in SearchRequest.filter conforming to https://google.aip.dev/160#filtering. Similarly, for view-item-list events that are generated from a RecommendRequest, this field may be populated directly from RecommendRequest.filter conforming to https://google.aip.dev/160#filtering. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.

Returns
Type Description
string

setFilter

The filter syntax consists of an expression language for constructing a predicate from one or more fields of the documents being filtered.

One example is for search events, the associated SearchRequest may contain a filter expression in SearchRequest.filter conforming to https://google.aip.dev/160#filtering. Similarly, for view-item-list events that are generated from a RecommendRequest, this field may be populated directly from RecommendRequest.filter conforming to https://google.aip.dev/160#filtering. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.

Parameter
Name Description
var string
Returns
Type Description
$this

getDocuments

List of Documents associated with this user event.

This field is optional except for the following event types:

  • view-item
  • add-to-cart
  • purchase
  • media-play
  • media-complete In a search event, this field represents the documents returned to the end user on the current page (the end user may have not finished browsing the whole page yet). When a new page is returned to the end user, after pagination/filtering/ordering even for the same query, a new search event with different UserEvent.documents is desired.
Returns
Type Description
Google\Protobuf\Internal\RepeatedField

setDocuments

List of Documents associated with this user event.

This field is optional except for the following event types:

  • view-item
  • add-to-cart
  • purchase
  • media-play
  • media-complete In a search event, this field represents the documents returned to the end user on the current page (the end user may have not finished browsing the whole page yet). When a new page is returned to the end user, after pagination/filtering/ordering even for the same query, a new search event with different UserEvent.documents is desired.
Parameter
Name Description
var array<DocumentInfo>
Returns
Type Description
$this

getPanel

Panel metadata associated with this user event.

Returns
Type Description
PanelInfo|null

hasPanel

clearPanel

setPanel

Panel metadata associated with this user event.

Parameter
Name Description
var PanelInfo
Returns
Type Description
$this

getSearchInfo

SearchService.Search details related to the event.

This field should be set for search event.

Returns
Type Description
SearchInfo|null

hasSearchInfo

clearSearchInfo

setSearchInfo

SearchService.Search details related to the event.

This field should be set for search event.

Parameter
Name Description
var SearchInfo
Returns
Type Description
$this

getCompletionInfo

CompletionService.CompleteQuery details related to the event.

This field should be set for search event when autocomplete function is enabled and the user clicks a suggestion for search.

Returns
Type Description
CompletionInfo|null

hasCompletionInfo

clearCompletionInfo

setCompletionInfo

CompletionService.CompleteQuery details related to the event.

This field should be set for search event when autocomplete function is enabled and the user clicks a suggestion for search.

Parameter
Name Description
var CompletionInfo
Returns
Type Description
$this

getTransactionInfo

The transaction metadata (if any) associated with this user event.

Returns
Type Description
TransactionInfo|null

hasTransactionInfo

clearTransactionInfo

setTransactionInfo

The transaction metadata (if any) associated with this user event.

Parameter
Name Description
var TransactionInfo
Returns
Type Description
$this

getTagIds

A list of identifiers for the independent experiment groups this user event belongs to. This is used to distinguish between user events associated with different experiment setups.

Returns
Type Description
Google\Protobuf\Internal\RepeatedField

setTagIds

A list of identifiers for the independent experiment groups this user event belongs to. This is used to distinguish between user events associated with different experiment setups.

Parameter
Name Description
var string[]
Returns
Type Description
$this

getPromotionIds

The promotion IDs if this is an event associated with promotions.

Currently, this field is restricted to at most one ID.

Returns
Type Description
Google\Protobuf\Internal\RepeatedField

setPromotionIds

The promotion IDs if this is an event associated with promotions.

Currently, this field is restricted to at most one ID.

Parameter
Name Description
var string[]
Returns
Type Description
$this

getAttributes

Extra user event features to include in the recommendation model.

These attributes must NOT contain data that needs to be parsed or processed further, e.g. JSON or other encodings. If you provide custom attributes for ingested user events, also include them in the user events that you associate with prediction requests. Custom attribute formatting must be consistent between imported events and events provided with prediction requests. This lets the Discovery Engine API use those custom attributes when training models and serving predictions, which helps improve recommendation quality. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned:

  • The key must be a UTF-8 encoded string with a length limit of 5,000 characters.
  • For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters.
  • For number attributes, at most 400 values are allowed. For product recommendations, an example of extra user information is traffic_channel, which is how a user arrives at the site. Users can arrive at the site by coming to the site directly, coming through Google search, or in other ways.
Returns
Type Description
Google\Protobuf\Internal\MapField

setAttributes

Extra user event features to include in the recommendation model.

These attributes must NOT contain data that needs to be parsed or processed further, e.g. JSON or other encodings. If you provide custom attributes for ingested user events, also include them in the user events that you associate with prediction requests. Custom attribute formatting must be consistent between imported events and events provided with prediction requests. This lets the Discovery Engine API use those custom attributes when training models and serving predictions, which helps improve recommendation quality. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned:

  • The key must be a UTF-8 encoded string with a length limit of 5,000 characters.
  • For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters.
  • For number attributes, at most 400 values are allowed. For product recommendations, an example of extra user information is traffic_channel, which is how a user arrives at the site. Users can arrive at the site by coming to the site directly, coming through Google search, or in other ways.
Parameter
Name Description
var array|Google\Protobuf\Internal\MapField
Returns
Type Description
$this

getMediaInfo

Media-specific info.

Returns
Type Description
MediaInfo|null

hasMediaInfo

clearMediaInfo

setMediaInfo

Media-specific info.

Parameter
Name Description
var MediaInfo
Returns
Type Description
$this