SoFunction
Updated on 2025-03-05

How to implement simple http service in go language

package main
import (
    "flag"
    "log"
    "net/http"
    "text/template"
)
var addr = ("addr", ":1718", "http service address") // Q=17, R=18
var templ = (("qr").Parse(templateStr))
func main() {
    ()
    ("/", (QR))
    err := (*addr, nil)
    if err != nil {
        ("ListenAndServe:", err)
    }
}
func QR(w , req *) {
    (w, ("s"))
}
const templateStr = `
<html>
<head>
<title>QR Link Generator</title>
</head>
<body>
{{if .}}
<img src="/chart?chs=300x300&cht=qr&choe=UTF-8&chl={{urlquery .}}" />
<br>
{{html .}}
<br>
<br>
{{end}}
<form action="/" name=f method="GET"><input maxLength=1024 size=70
name=s value="" title="Text to QR Encode"><input type=submit
value="Show QR" name=qr>
</form>
</body>
</html>