Simple Example of a RateLimiter for a WebAPI

• This Example uses a FixedWindow-RateLimiter.
• The example limit is set to 2 requests per 10 seconds.

When the rate limit is exceeded, the following response is returned:

type:  "https://tools.ietf.org/html/rfc6585#section-4"
title:  "Rate Limit Exceeded"
status:  429
detail:  "Rate limit of 2 requests per 10 seconds exceeded."