In Golang, Is http.HandleFunc block?

Question

i'm write a httpserver in Golang , but i find the http.HandleFunc will be block when multi request from the web browser. how can i do make the server handle multi request in the same time ? thanks. my code is: ``` func DoQuery(w http.ResponseWriter, r *http.Request) { r.ParseForm() fmt.Printf("%d path %s
", time.Now().Unix(), r.URL.Path) time.Sleep(10 * time.Second) fmt.Fprintf(w, "hello...") //why this function block when multi request ? } func main() { fmt.Printf("server start working...
") http.HandleFunc("/query", DoQuery) s := &http.Server{ Addr: ":9090", ReadTimeout: 30 * time.Second, WriteTimeout: 30 * time.Second, //MaxHeaderBytes: 1 << 20, } log.Fatal(s.ListenAndServe()) fmt.Printf("server stop...") } ``` I ran your code and everything worked as expected. I did two requests at the same time (curl localhost:9090/query) and they both finished 10 seconds later, together. Maybe the problem is elsewhere? Here's the command I used: time curl -s localhost:9090/query | echo $(curl…

Accepted Answer

Yes, the standard HTTP server will start a new goroutine for each request. You should be able to do thousands of requests in parallel depending on the operating system settings.

Your browser might be limiting how many requests it will send to one server; be sure you are testing with a client that doesn't have that limitation/"optimization".

Reliably Go docs explaining Http Server creates a new gorotine for each request: http://golang.org/pkg/net/http/#Server.Serve

In Golang, Is http.HandleFunc block?

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