Throttled 
Package throttled implements rate limiting using the generic cell rate
algorithm to limit access to resources such as HTTP endpoints.
The 2.0.0 release made some major changes to the throttled API. If
this change broke your code in problematic ways or you wish a feature
of the old API had been retained, please open an issue. We don't
guarantee any particular changes but would like to hear more about
what our users need. Thanks!
Installation
go get -u github.com/throttled/throttled
Documentation
API documentation is available on godoc.org. The following
example demonstrates the usage of HTTPLimiter for rate-limiting access
to an http.Handler to 20 requests per path per minute with bursts of
up to 5 additional requests:
store, err := memstore.New(65536)
if err != nil {
log.Fatal(err)
}
quota := throttled.RateQuota{throttled.PerMin(20), 5}
rateLimiter, err := throttled.NewGCRARateLimiter(store, quota)
if err != nil {
log.Fatal(err)
}
httpRateLimiter := throttled.HTTPRateLimiter{
RateLimiter: rateLimiter,
VaryBy: &throttled.VaryBy{Path: true},
}
http.ListenAndServe(":8080", httpRateLimiter.RateLimit(myHandler))
Related Projects
See throttled/gcra for a list of other projects related to
rate limiting and GCRA.
Release
- Update
CHANGELOG.md. Please use semantic versioning and the existing
conventions established in the file. Commit the changes with a message like
Bump version to 2.2.0. - Tag
masterwith a new version prefixed withv. For example,v2.2.0. git push origin master --tags.- Publish a new release on the releases page. Copy the body from the
contents ofCHANGELOG.mdfor the version and follow other conventions from
previous releases.
License
The BSD 3-clause license. Copyright (c) 2014 Martin Angers and contributors.