-
Notifications
You must be signed in to change notification settings - Fork 1
/
RateLimiting.go
54 lines (47 loc) · 1.02 KB
/
RateLimiting.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
// RateLimiting
package main
import (
"fmt"
"time"
)
func RateLimiting_() {
p := fmt.Println
request := make(chan int, 5)
for i := 1; i <= 5; i++ {
request <- i
}
close(request)
/*
This limiter channel will receive a value
every 200 milliseconds. This is the regulator
in our rate limiting scheme.
*/
limiter := time.Tick(time.Millisecond * 200)
/*
By blocking on a receive from the limiter channel
before serving each request,
we limit ourselves to 1 request every 200 milliseconds.
*/
for req := range request {
<-limiter
p("request", req, time.Now())
}
burstyLimiter := make(chan time.Time, 3)
for i := 0; i < 3; i++ {
burstyLimiter <- time.Now()
}
go func() {
for t := range time.Tick(time.Millisecond * 200) {
burstyLimiter <- t
}
}()
burstyRequests := make(chan int, 5)
for i := 1; i <= 5; i++ {
burstyRequests <- i
}
close(burstyRequests)
for req := range burstyRequests {
<-burstyLimiter
p("request", req, time.Now())
}
}