REST Resource: projects.locations.catalogs.userEvents

Resource: UserEvent

UserEvent captures all metadata information Retail API needs to know about how end users interact with customers' website.

JSON representation 
{
  "eventType": string,
  "visitorId": string,
  "eventTime": string,
  "experimentIds": [
    string
  ],
  "attributionToken": string,
  "productDetails": [
    {
      object (ProductDetail)
    }
  ],
  "attributes": {
    string: {
      "text": [
        string
      ],
      "numbers": [
        number
      ]
    },
    ...
  },
  "cartId": string,
  "purchaseTransaction": {
    object (PurchaseTransaction)
  },
  "searchQuery": string,
  "pageCategories": [
    string
  ],
  "userInfo": {
    object (UserInfo)
  },
  "uri": string,
  "referrerUri": string,
  "pageViewId": string
}
Fields
eventType

string

Required. User event type. Allowed values are:

  • add-to-cart: Products being added to cart.
  • category-page-view: Special pages such as sale or promotion pages viewed.
  • detail-page-view: Products detail page viewed.
  • home-page-view: Homepage viewed.
  • purchase-complete: User finishing a purchase.
  • search: Product search.
  • shopping-cart-page-view: User viewing a shopping cart.
visitorId

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.

The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.
eventTime

string (Timestamp format)

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

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
experimentIds[]

string

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 (e.g. using Retail API, using different recommendation models).
attributionToken

string

Highly recommended for user events that are the result of PredictionService.Predict. This field enables accurate attribution of recommendation model performance.

The value must be a valid PredictResponse.attribution_token for user events that are the result of PredictionService.Predict.

This token enables us to accurately attribute page view or purchase 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 PredictResponse.attribution_token as a URL parameter to product K's page. When recording events on product K's page, log the PredictResponse.attribution_token to this field.
productDetails[]

object (ProductDetail)

The main product details related to the event.

This field is required for the following event types:

  • add-to-cart
  • detail-page-view
  • purchase-complete

In a search event, this field represents the products returned to the end user on the current page (the end user may have not finished broswing 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 productDetails is desired. The end user may have not finished broswing the whole page yet.
attributes[]

map (key: string, value: object)

Extra user event features to include in the recommendation model.

The key must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.

For product recommendation, an example of extra user information is traffic_channel, i.e. how user arrives at the site. Users can arrive at the site by coming to the site directly, or coming through Google search, and etc.
attributes[].text[]

string

The textual values of this custom attribute. For example, ["yellow", "green"] when the key is "color".

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. Otherwise, an INVALID_ARGUMENT error is returned.

Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
attributes[].numbers[]

number

The numerical values of this custom attribute. For example, [2.3, 15.4] when the key is "lengths_cm".

At most 400 values are allowed.Otherwise, an INVALID_ARGUMENT error is returned.

Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
cartId

string

The id or name of the associated shopping cart. This id is used to associate multiple items added or present in the cart before purchase.

This can only be set for add-to-cart, purchase-complete, or shopping-cart-page-view events.
purchaseTransaction

object (PurchaseTransaction)

A transaction represents the entire purchase transaction.

Required for purchase-complete events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
searchQuery

string

The user's search query.

The value must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.

Required for search events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
pageCategories[]

string

The categories associated with a category page.

To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, please replace it with other character(s).

Category pages include special pages such as sales or promotions. For instance, a special sale page may have the category hierarchy: "pageCategories" : ["Sales > 2017 Black Friday Deals"].

Required for category-page-view events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
userInfo

object (UserInfo)

User information.
uri

string

Complete URL (window.location.href) of the user's current page.

When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically. Maximum length 5,000 characters.
referrerUri

string

The referrer URL of the current page.

When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.
pageViewId

string

A unique id of a web page view.

This should be kept the same for all user events triggered from the same pageview. For example, an item detail page view could trigger multiple events as the user is browsing the page. The pageViewId property should be kept the same for all these events so that they can be grouped together properly.

When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.

ProductDetail

Detailed product information associated with a user event.

JSON representation 
{
  "product": {
    object (Product)
  },
  "quantity": integer
}
Fields
product

object (Product)

Required. Product information.

Only Product.id field is used when ingesting an event, all other product fields are ignored as we will look them up from the catalog.
quantity

integer

Quantity of the product associated with the user event.

For example, this field will be 2 if two products are added to the shopping cart for purchase-complete event. Required for add-to-cart and purchase-complete event types.

PurchaseTransaction

A transaction represents the entire purchase transaction.

JSON representation 
{
  "id": string,
  "revenue": number,
  "tax": number,
  "cost": number,
  "currencyCode": string
}
Fields
id

string

The transaction ID with a length limit of 128 characters.
revenue

number

Required. Total non-zero revenue or grand total associated with the transaction. This value include shipping, tax, or other adjustments to total revenue that you want to include as part of your revenue calculations.
tax

number

All the taxes associated with the transaction.
cost

number

All the costs associated with the products. These can be manufacturing costs, shipping expenses not borne by the end user, or any other costs, such that:
currencyCode

string

Required. Currency code. Use three-character ISO-4217 code.

UserInfo

Information of an end user.

JSON representation 
{
  "userId": string,
  "ipAddress": string,
  "userAgent": string,
  "directUserRequest": boolean
}
Fields
userId

string

Highly recommended for logged-in users. Unique identifier for logged-in user, such as a user name.

The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.
ipAddress

string

The end user's IP address. This field is used to extract location information for personalization.

This field must be either an IPv4 address (e.g. "104.133.9.80") or an IPv6 address (e.g. "2001:0db8:85a3:0000:0000:8a2e:0370:7334"). Otherwise, an INVALID_ARGUMENT error is returned.

This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent or if directUserRequest is set.
userAgent

string

User agent as included in the HTTP header.

The field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.

This should not be set when using the client side event reporting with GTM or JavaScript tag in UserEventService.CollectUserEvent or if directUserRequest is set.
directUserRequest

boolean

True if the request is made directly from the end user, in which case the ipAddress and userAgent 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.

Methods

collect

 Writes a single user event from the browser.

import

 Bulk import of User events.

purge

 Deletes permanently all user events specified by the filter provided.

rejoin

 Triggers a user event rejoin operation with latest product catalog.

write

 Writes a single user event.