Token-bucket rate limiter backed by ExRated.
Each Config gets its own bucket keyed by username. The default
rate is 100 requests/second, configurable via :rate_limit in config.
Summary
Functions
Check and consume one token for the given config.
Functions
@spec check(Paysafe.Config.t()) :: :ok | {:error, Paysafe.Error.t()}
Check and consume one token for the given config.
Returns :ok if the request can proceed, or {:error, %Error{}} if
the rate limit has been exceeded.