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Merge pull request #13 from TencentBlueKing/develop
- bufferd zap logger - rate limit
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| 1.8.2 | ||
| 1.8.3 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| package middleware | ||
|
|
||
| import ( | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/gin-gonic/gin" | ||
| log "github.com/sirupsen/logrus" | ||
| "golang.org/x/time/rate" | ||
|
|
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| "iam/pkg/config" | ||
| "iam/pkg/util" | ||
| ) | ||
|
|
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| const ( | ||
| rateLimitKey = "rate_limit" | ||
| // 2000 for per app_code per iam instance | ||
| defaultRateLimitPerSecondPerClient = 2000 | ||
| ) | ||
|
|
||
| var ( | ||
| rateLimiters = sync.Map{} | ||
| ) | ||
|
|
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| // NOTE: this middleware used for api rate limit of calling directly | ||
| // all api will be maintained by APIGateway | ||
| // REMOVE THIS MIDDLEWARE WHEN WE NOT SUPPORT CALLING DIRECTLY | ||
|
|
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| func NewRateLimitMiddleware(c *config.Config) gin.HandlerFunc { | ||
| limitCount, ok := c.Quota.API[rateLimitKey] | ||
| if !ok { | ||
| limitCount = defaultRateLimitPerSecondPerClient | ||
| } | ||
|
|
||
| return func(c *gin.Context) { | ||
| log.Debug("Middleware: RateLimit") | ||
|
|
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| appCode := util.GetClientID(c) | ||
|
|
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| value, _ := rateLimiters.LoadOrStore(appCode, rate.NewLimiter(rate.Every(1*time.Second), limitCount)) | ||
| limiter := value.(*rate.Limiter) | ||
|
|
||
| if !limiter.Allow() { | ||
| util.TooManyRequestsJSONResponse(c, "hit the rate limit") | ||
| c.Abort() | ||
| return | ||
| } | ||
| c.Next() | ||
| } | ||
| } |
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