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Original file line number | Diff line number | Diff line change |
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package request | ||
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import ( | ||
"time" | ||
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"github.com/ksysoev/ratestor" | ||
"github.com/ksysoev/wasabi" | ||
"github.com/ksysoev/wasabi/dispatch" | ||
) | ||
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func NewRateLimiterMiddleware(requestLimit func(wasabi.Request) (key string, period time.Duration, limit uint64)) func(next wasabi.RequestHandler) wasabi.RequestHandler { | ||
stor := ratestor.NewRateStor() | ||
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return func(next wasabi.RequestHandler) wasabi.RequestHandler { | ||
return dispatch.RequestHandlerFunc(func(conn wasabi.Connection, req wasabi.Request) error { | ||
key, period, limit := requestLimit(req) | ||
if err := stor.Allow(key, period, limit); err != nil { | ||
return err | ||
} | ||
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return next.Handle(conn, req) | ||
}) | ||
} | ||
} |