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Ratekeeper is a library for scheduling rate-limited actions.
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whitered/ratekeeper
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Ratekeeper is a library for scheduling rate-limited actions.It supports complex rate limits and estimates time left to resetting limits.
Addratekeeper as dependency inmix.exs
defdepsdo[{:ratekeeper,"~> 0.2"}]end
Limits can be set in config:
config:ratekeeper,:limits,%{"myapi.org"=>[{1000,5},{60_000,100}]}
or at runtime:
Ratekeeper.add_limit"myapi.org",1000,5Ratekeeper.add_limit"myapi.org",60_000,100
This sets limits to5 requests per 1 second and100 requests per minute.
Appoint a request to rate limited api:
caseRatekeeper.register("myapi.org",10_000)donil->raise"Rate limits exceeded, request not allowed in next 10 seconds"delay->:timer.sleep(delay)MyApi.do_request()end
Full documentation can be found athttps://hexdocs.pm/ratekeeper.