Overview
The View Count Enricher provides a REST interface for processing events and getting processing metrics. It also provides an end-to-end SAP Hybris Profile flow that:
- reads messages from the View Count Enricher topic
- updates a Neo4j graph
The View Count Enricher uses the PubSub service for publishing and receiving messages.
Events
The View Count Enricher is triggered by the following events stored in the Context service:
| Triggered by Schema | Payload example |
|---|---|
context/commerce/ProductView | |
context/commerce/CategoryView |
The View Count Enricher draws an edge relationship between the session node, the product node, and the category node in the Secure Graph service:
| Node or Relation | properties |
|---|---|
nodes/commerce/Session | |
nodes/commerce/Product | name |
nodes/commerce/Category | |
relations/commerce/Session/commerce/Product/commerce/VIEWED | ViewCount |
relations/commerce/Session/commerce/Category/commerce/VIEWED | ViewCount |
Metamodel
The following interactive graphic displays the schemas that invoke this enricher and the schemas the enricher can affect in the graph.
Glossary
| Term | Description |
|---|---|
| authorization | The process of determining whether a given microservice has permission to gain consent. |
| consent | Permission to access (read, write) specific profile data, for example, permission to read/write age estimation or physical address. A consumer and a tenant can grant and revoke consent for subsets of their respective data. |
| consent class | A string alias, defined by developers, that references a set of profile data (also called "schemas") for which consent can be granted and revoked. This string is exposed to users (consumers and tenants) as a reference through which they control consent. For example, the consent class "Purchases" might reference a set of data that includes items purchased, purchase dates, and purchase prices. Toggling consent for "Purchase" would enable and disable consent for that entire set of data. |
| consent reference | A unique, randomized string that serves as a passcode to decrypt data associated with one or more schemas. Various service calls require a consent reference. |
| consumer | The end user whose actions yield profile data in the graph. A profile describes a single consumer. |
| context | Data that affects the state of the graph. This data can be collected from consumer-triggered events or from third-party sources such as weather stations. |
| Context Adapter | A microservice that receives data and, optionally, adapts it for entry into the graph. For example, a context adapter can adapt address data by adding a ZIP code and normalizing the street labels (for example, changing "St" to "Street"). The context adapter then passes the data through the Context service, which caches it so that enrichers can subsequently persist the data in the graph. |
| context repository | A temporary cache for adapted context data, before it is further processed by enrichers and persisted in the graph. |
| context service | An internal microservice that manages the insertion of, and the retrieval of, context data in the Context Repository. |
| encryption key | A unique, randomized string used to encrypt and decrypt specific data in the graph. Each data element is encrypted with a different encryption key. Decryption, using this key, is required to access, view, and alter the data. |
| enricher | A microservice that retrieves data from the Context Repository and/or Graph, possibly alters or extends it, and then persists data in the graph. An enricher can interpret data points, or sets of data points, to yield new data to persist. For example, an enricher can interpret purchasing data and contemporaneous weather station data to yield new data indicating that the consumer is a rainy-day shopper. |
| graph | The database that stores profile data as nodes, edges, and properties, and allows semantic queries. |
| identity | One of many independent units of data used to identify a unique profile, such as an email address, browser type, or version. |
| profile | Data about a single consumer, collected and derived from events that are triggered by, or are logically associated, with that consumer. |
| schema | A string representation of a path in the graph that represents an abstraction, rather than a concrete instance, of a particular data structure. |
| tenant | A registered entity with a shared commercial goal that subscribes to SAP Hybris Profile services and packages to reach that goal. A tenant can also develop and contribute enrichers and context adapters to the SAP Hybris Profile suite. Within YaaS, a tenant is a project. |
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