Rate limit plug for controllers.

Reads configuration from Application.get_env(:activity_pub, :rate_limit)[key_prefix] with fallback to default options provided in the plug call.

Options

• :key_prefix - Prefix for the rate limit bucket key (required)
• :scale_ms - Default time window in milliseconds (can be overridden by config)
• :limit - Default number of requests (can be overridden by config)

Examples

plug :rate_limit, 
  key_prefix: :webfinger,
  scale_ms: 60_000,
  limit: 200