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39 lines
1 KiB
Go
39 lines
1 KiB
Go
// Copyright 2019 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package logging
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import (
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"github.com/go-kit/kit/log"
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"golang.org/x/time/rate"
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)
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type ratelimiter struct {
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limiter *rate.Limiter
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next log.Logger
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}
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// RateLimit write to a loger.
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func RateLimit(next log.Logger, limit rate.Limit) log.Logger {
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return &ratelimiter{
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limiter: rate.NewLimiter(limit, int(limit)),
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next: next,
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}
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}
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func (r *ratelimiter) Log(keyvals ...interface{}) error {
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if r.limiter.Allow() {
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return r.next.Log(keyvals...)
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}
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return nil
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}
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