The Go standard library comes with excellent support for HTTP clients and servers in the net/http package. In this example we’ll use it to issue simple HTTP requests.
package main
import (
"bufio"
"fmt"
"net/http"
)
func main() {
// Issue an HTTP GET request to a server.
// http.Get is a convenient shortcut around
// creating an http.Client object and calling its Get method
// it uses the http.DefaultClient object which has useful default settings.
resp, err := http.Get("https://gobyexample.com")
if err != nil {
panic(err)
}
defer resp.Body.Close()
// Print the HTTP response status.
fmt.Println("Response status:", resp.Status)
// Print the first 5 lines of the response body.
scanner := bufio.NewScanner(resp.Body)
for i := 0; scanner.Scan() && i < 5; i++ {
fmt.Println(scanner.Text())
}
if err := scanner.Err(); err != nil {
panic(err)
}
}
$ go run http-clients.go
Response status: 200 OK
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go by Example</title>