public RateLimitResult Process(string key, string period, int maxCalls)
{
var result = new RateLimitResult();
var value = _memoryCache.GetOrCreate(key, c => {
var expiration = DateTime.Now.Add(NotationToTimeSpan.Parse(period));
var item = new CacheEntry(expiration);
c.AbsoluteExpiration = expiration;
c.Value = item;
return(item);
});
value.Count++;
var remaining = maxCalls - value.Count;
remaining = remaining > 0 ? remaining : 0;
return(new RateLimitResult {
IsSuccess = value.Count <= maxCalls,
RateLimitReset = value.AbsoluteExpiration,
RequestLimit = maxCalls,
RequestPeriod = period,
RequestsRemaining = remaining
});
}
public void Should_parse_seconds(string notation, int value)
{
Assert.Equal(TimeSpan.FromSeconds(value), NotationToTimeSpan.Parse(notation));
}
public void Should_throw_on_error(string notation)
{
Assert.Throws <FormatException>(() => NotationToTimeSpan.Parse(notation));
}