httphandler

Documentation

Index

• func GCI(next http.HandlerFunc) http.HandlerFunc

Examples

• GCI

Functions

func GCI

func GCI(next http.HandlerFunc) http.HandlerFunc

GCI returns the GCI HTTP handler, which controls Go's GC to decrease service tail latency. Ideally, GCI handler should be the first middleware in the service process chain.

Example

f := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
	fmt.Fprint(w, "Hi")
})
ts := httptest.NewServer(GCI(f))
defer ts.Close()

// Usual serving flow.
res, err := http.Get(ts.URL)
if err != nil {
	panic(err)
}
b, err := ioutil.ReadAll(res.Body)
res.Body.Close()
if err != nil {
	panic(err)
}
fmt.Print(string(b))

Output:

==< Automatic GC Disabled <==
Hi