Golang http.Get()

Question

I'm trying to write a basic http server example. I can curl localhost:8080, but can't contact the server with http.Get("127.0.0.1:8080") from the client script. What am I doing wrong?

server.go:

import "fmt"
import "net/http"

func join(w http.ResponseWriter, req *http.Request) {
    fmt.Println("Someone joined")
}

func main() {
    fmt.Println("Listening on port 8080...")
    http.HandleFunc("/join", join)
    http.ListenAndServe(":8080", nil)
}

client.go:

import "net/http"
http.Get("127.0.0.1:8080/join")

"I [...] can't contact the server" is not a helpful description of what actual problem you are facing. BTW: capturing and handling the error from http.Get would be informative here. — Volker
– Volker, Commented Mar 8, 2017 at 18:57

user5728991 · Accepted Answer · 2017-03-08 18:57:22Z

7

Try http.Get("http://127.0.0.1:8080/join"). Note the "http:". Also, check the error. It will tell you what the problem is.

resp, err := http.Get("http://127.0.0.1:8080/join")
if err != nil {
  log.Fatal(err)
}

answered Mar 8, 2017 at 18:57

user5728991

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1 Comment

agent47 Over a year ago

hey, say if i dont want to use err in my code how can i replace resp, err := http.Get("http://127.0.0.1:8080/join") with something like response_struct := http.Get("http://127.0.0.1:8080/join") ?

Nima Ghotbi · Accepted Answer · 2017-03-08 19:00:50Z

2

You have't specified the scheme, try http.Get("http://127.0.0.1:8080/join")

http.Get like many other go functions return the error so if you have written your code you like:

_, err := http.Get("127.0.0.1:8080/join")
if err != nil{
    fmt.Println(err)
}

you would have seen:

Get 127.0.0.1:8080/join: unsupported protocol scheme ""

answered Mar 8, 2017 at 19:00

Nima Ghotbi

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