Running Multiple HTTP Servers in Go made easy

In this example, I’ve demonstrated how to run multiple HTTP servers simultaneously in Go using goroutines.

- Two HTTP servers (webServer1 and webServer2) are created, each responding with a simple message.

- They are listening on different ports (8080 and 8081), which allows them to run concurrently.

- ‘go func()’ is used to start each server in its own goroutine. This allows the servers to run simultaneously without blocking each other.

- The ‘select {}’ statement is used to block the main goroutine indefinitely, ensuring that the program keeps running and the servers remain active.

package main

import (
 "log"
 "net/http"
)

func main() {
 webServer1 := http.NewServeMux()
 webServer1.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
  _, _ = w.Write([]byte("Hello, From Web Server 1!"))
 })

 webServer2 := http.NewServeMux()
 webServer2.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
  _, _ = w.Write([]byte("Hello, I'm Web Server 2!"))
 })

 go func() {
  log.Fatal(http.ListenAndServe(":8080", webServer1))
 }()

 go func() {
  log.Fatal(http.ListenAndServe(":8081", webServer2))
 }()

 select {}
}

This is a simple yet effective way to handle multiple HTTP servers in Go, leveraging the power of concurrency.