Method: featureViews.directWrite

Full name: projects.locations.featureOnlineStores.featureViews.directWrite

Bidirectional streaming RPC to directly write to feature values in a feature view. Requests may not have a one-to-one mapping to responses and responses may be returned out-of-order to reduce latency.

Endpoint

post https://{service-endpoint}/v1/{featureView}:directWrite

Where {service-endpoint} is one of the supported service endpoints.

Path parameters

featureView string

FeatureView resource format projects/{project}/locations/{location}/featureOnlineStores/{featureOnlineStore}/featureViews/{featureView}

Request body

The request body contains data with the following structure:

Fields
dataKeyAndFeatureValues[] object (DataKeyAndFeatureValues)

Required. The data keys and associated feature values.

Response body

Response message for FeatureOnlineStoreService.FeatureViewDirectWrite.

If successful, the response body contains data with the following structure:

Fields
status object (Status)

Response status for the keys listed in FeatureViewDirectWriteResponse.write_responses.

The error only applies to the listed data keys - the stream will remain open for further [FeatureOnlineStoreService.FeatureViewDirectWriteRequest][] requests.

Partial failures (e.g. if the first 10 keys of a request fail, but the rest succeed) from a single request may result in multiple responses - there will be one response for the successful request keys and one response for the failing request keys.

writeResponses[] object (WriteResponse)

Details about write for each key. If status is not OK, WriteResponse.data_key will have the key with error, but WriteResponse.online_store_write_time will not be present.

JSON representation 
{
  "status": {
    object (Status)
  },
  "writeResponses": [
    {
      object (WriteResponse)
    }
  ]
}

DataKeyAndFeatureValues

A data key and associated feature values to write to the feature view.

Fields
dataKey object (FeatureViewDataKey)

The data key.

features[] object (Feature)

List of features to write.

JSON representation 
{
  "dataKey": {
    object (FeatureViewDataKey)
  },
  "features": [
    {
      object (Feature)
    }
  ]
}

Feature

feature name & value pair.

Fields
name string

feature short name.

data_oneof Union type
Feature value data to write. data_oneof can be only one of the following:
value object (FeatureValue)

feature value. A user provided timestamp may be set in the FeatureValue.metadata.generate_time field.

JSON representation 
{
  "name": string,

  // data_oneof
  "value": {
    object (FeatureValue)
  }
  // Union type
}

WriteResponse

Details about the write for each key.

Fields
dataKey object (FeatureViewDataKey)

What key is this write response associated with.

onlineStoreWriteTime string (Timestamp format)

When the feature values were written to the online store. If FeatureViewDirectWriteResponse.status is not OK, this field is not populated.

Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".

JSON representation 
{
  "dataKey": {
    object (FeatureViewDataKey)
  },
  "onlineStoreWriteTime": string
}