How to use multiple domains?

How to use multiple domains with one port ?

Such as :
type AdminController struct // portal.domain.com

type BlogController struct // blog.domain.com

[thinkerou]

@getkokomi please check #347

[wahello]

Maybe, the question meaning is: How to use dynamic/wildcard subdomains?

[zelenko]

Use HostSwitch to host multiple domains.

import (
    "fmt"
    "log"
    "net/http"
)

type HostSwitch map[string]http.Handler

// Implement the ServerHTTP method
func (hs HostSwitch) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    if handler, ok := hs[r.Host]; ok && handler != nil {
        handler.ServeHTTP(w, r)
    } else {
        http.Error(w, "Forbidden", http.StatusForbidden)
    }
}

func main() {
	mux := http.NewServeMux()
	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
		fmt.Fprintf(w, "Welcome to the first home page!")
	})

	muxTwo := http.NewServeMux()
	muxTwo.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
		fmt.Fprintf(w, "Welcome to the second home page!")
	})

    hs := make(HostSwitch)
    hs["example-one.local:8080"] = mux
    hs["example-two.local:8080"] = muxTwo

    log.Fatal(http.ListenAndServe(":8080", hs))
}

More info here