connector (version 1.0.0)

extract_metadata: Extract metadata from connectors

Description

This function extracts the "metadata" attribute from a connectors object, with optional filtering to return only a specific metadata field.

Usage

extract_metadata(connectors, name = NULL)

Value

A list containing the metadata extracted from the "metadata" attribute, or the specific attribute value if name is specified.

Arguments

connectors

An object containing connectors with a "metadata" attribute.

name

A character string specifying which metadata attribute to extract. If NULL (default), returns all metadata.

Examples

# A config list with metadata
config <- list(
  metadata = list(
    study = "Example Study",
    version = "1.0"
  ),
  datasources = list(
    list(
      name = "adam",
      backend = list(type = "connector_fs", path = tempdir())
    )
  )
)

cnts <- connect(config)

# Extract all metadata
result <- extract_metadata(cnts)
print(result)

# Extract specific metadata field
study_name <- extract_metadata(cnts, name = "study")
print(study_name)