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Informations about the package rate
Rate
A simple but extentable rate limiting package.
Installation
Install using composer.
Rate requires PHP7 to run.
Documentation
Actors
Actors are the entities that can be rate limited. They are identified by an IP address:
Events
Events are entities that can be rate limited. Event are identified by name, can have a cost (discussed later) and is triggered by an actor.
Rate Limits
Rate limits are entities that contain information about the imposed limits. Rate limits can have a number of attempts, a timeframe and a penalty (discussed later).
Event Repositories
Events can be persisted to a storage medium so that rate limits can be imposed across requests. Rate comes with a FakeRepository (in-memory) to get you started.
Rate Limiters
Rate limiters are services that define a strategy for rate limiting. Rate comes with two main rate limiting strategies:
- Basic rate limiting e.g. 100 requests every hour
- Dynamic rate limiting i.e. leaky bucket
If a rate limited is exceeded it will throw a Armory\Rate\Exceptions\RateLimitExceededException.
Costs
Costs allow for a cost/balance implementation whereby imposing a limit of 100 on the rate limiter gives the actor a balance of 100 credits. Each event 'costs' a number of credits which subtract from the total balance. For example:
Penalties
A third parameter to creating an event allows you to specify a penalty for hitting the rate limit. If a rate limit is hit, the penalty time prevents the rate limit from passing even if the actor would usually have credits.
