I was playing with the go HTTP package. I wanted to process request in parallel as I do in java. But I couldn't.
I created a simple web server, put a sleep in the middle and realized that go process one request per time, so if I did a refresh on my browser, the process of the first request has to finish until the second request start processing, here is the code:
func main(){
//Process the http commands
fmt.Printf("Starting http Server ... ")
http.Handle("/", http.HandlerFunc(sayHello))
err := http.ListenAndServe("0.0.0.0:8080", nil)
if err != nil {
fmt.Printf("ListenAndServe Error",err)
}
}
func sayHello(c http.ResponseWriter, req *http.Request) {
fmt.Printf("New Request
")
processRequest(c, req)
}
func processRequest(w http.ResponseWriter, req *http.Request){
time.Sleep(time.Second*3)
w.Write([]byte("Go Say’s Hello(Via http)"))
fmt.Println("End")
}
As I wanted to process both request in parallel I added the "go" command before "processRequest(c, req)" in "sayHello" function in order to process each request in a different gorutine. But... it doesn't work.... I don't know why. I know that both request are processed because I see the printed line at the console but the browser keep waiting for information..... and don't show my response.
So... my questions,
Does each request create a new http.ResponseWriter? or it's use the same? Do you know how to indicate the web server to process each request with different threads?
Any help is welcomed....
Fersca