confex v3.5.0 Confex.Adapters.SystemEnvironment
Adapter to fetch values from system environment variables.
Link to this section Summary
Functions
Fetch value from environment variable
Link to this section Functions
Link to this function
fetch_value(key)
Fetch value from environment variable.
Example
iex> :ok = System.delete_env("SOME_TEST_ENV")
...> :error = Elixir.Confex.Adapters.SystemEnvironment.fetch_value("SOME_TEST_ENV")
...> :ok = System.put_env("SOME_TEST_ENV", "some_value")
...> {:ok, "some_value"} = Elixir.Confex.Adapters.SystemEnvironment.fetch_value("SOME_TEST_ENV")
{:ok, "some_value"}