HitPay.API.sandbox

You're seeing just the function sandbox, go back to HitPay.API module for more information.

If there's no sandbox config, detect based on environment. Sandbox is used for non-production environment. In config.exs, use a string, a function or a tuple, default is false

config :hit_pay, sandbox: System.get_env("HIT_PAY_SANDBOX")

or:

config :hit_pay, sandbox: {:system, "HIT_PAY_SANDBOX"}

or:

config :hit_pay, sandbox: {MyApp.Config, :HIT_PAY_SANDBOX, []}