40 lines
1.0 KiB
Go
40 lines
1.0 KiB
Go
/*
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* Copyright 2024 The Dragonfly Authors
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*
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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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*/
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package middlewares
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import (
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"net/http"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/juju/ratelimit"
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)
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func RateLimit(fillInterval time.Duration, capacity, quantum int64) gin.HandlerFunc {
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bucket := ratelimit.NewBucketWithQuantum(fillInterval, capacity, quantum)
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return func(c *gin.Context) {
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if bucket.TakeAvailable(1) < 1 {
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c.String(http.StatusTooManyRequests, "rate limit exceeded")
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c.Abort()
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return
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}
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c.Next()
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}
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}
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