JSON folder example

Example directory structure

• bucket_root
  • nested_folder/
    • 2021-05-03/ -> Date Partition
      • training_data/ -> Sub Folder
        • data.json
    • 2021-05-04/ -> Date Partition
      • training_sample/ -> Sub Folder
        • data.json

Python

from featurestore import Client, JSONFolder

# Initialise feature store client
client = Client("ip:port")
client.auth.login()

# Set project specifics
project = client.projects.create("demo")

# Create the JSON folder source
json_folder = JSONFolder(
  root_folder="s3a://feature-store-test-data/nested_folder",
  filter_pattern=".*/training.*"
)
json_folder_schema = client.extract_schema_from_source(json_folder)

# Register the feature set
my_feature_set = project.feature_sets.register(json_folder_schema, "feature_set_name", primary_key=["key_name"])

# Ingest to cache
my_feature_set.ingest(json_folder)

# Retrieve feature set
ref = my_feature_set.retrieve()
ref.download()

Scala

import ai.h2o.featurestore.Client
import ai.h2o.featurestore.core.sources.JSONFolder

// Initialise feature store client
val client = Client("url")
client.auth.login()

// Set project specifics
val project = client.projects.create("demo")

// Create the JSON folder source
val jsonFolder = JSONFolder(
  rootFolder="s3a://feature-store-test-data/nested_folder",
  filterPattern=".*/training.*"
)
val jsonFolderSchema = client.extractSchemaFromSource(jsonFolder)

// Register the feature set
val myFeatureSet = project.featureSets.register(jsonFolderSchema, "featureSetName", primaryKey=Seq("keyName"))

// Ingest to cache
myFeatureSet.ingest(jsonFolder)

// Retrieve feature set
val ref = myFeatureSet.retrieve()
ref.download()

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