Retrieve a Configuration Value from DATA_CONFIG — get_data_config

This function retrieves a configuration value from the global `DATA_CONFIG` list using a colon-separated parameter name. If the parameter is not found, a default value is returned. Optionally, the retrieved value can be checked against a set of acceptable values.

get_data_config_value(
  parameter_name,
  default_value = NULL,
  acceptable_values = NULL
)

Arguments

parameter_name: A character string specifying the configuration parameter. The parameter can be a colon-separated path to a nested value.
default_value: The value to return if the parameter is not found in `DATA_CONFIG`. Defaults to `NULL`.
acceptable_values: An optional vector of acceptable values. If provided, the function returns the intersection of the retrieved value and this set. If no intersection is found, the `default_value` is returned.

Value

The retrieved configuration value if found. If `acceptable_values` is provided, the function returns the intersection of the retrieved value and `acceptable_values`, or `default_value` if there is no intersection. If the parameter is not found, `default_value` is returned.

Examples

# Assuming DATA_CONFIG is defined as:
DATA_CONFIG <- list(api = list(endpoint = "https://example.com", timeout = 30))

# Retrieve a nested value
get_data_config_value("api:endpoint", default_value = "https://fallback.com")
#> [1] "https://fallback.com"

# Retrieve with acceptable values
get_data_config_value("api:timeout", default_value = 10, acceptable_values = c(10, 20, 30))
#> [1] 10