Creating Simple Server in Go - 02

• First check the Go version by running the command

go version

• Create a folder

mkdir <folder_name>

• Switch to created folder

cd <folder_name>

• Initialize the go project by running the given command. You will get go.mod file.

go mod init <folder_name>

• Create a main.go file, use terminal or bash

notepad main.go 
touch main.go

• Let's write some basic code in main.go file.

package main

import (
    "fmt"
    "net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hello From Go \n")
    fmt.Fprintf(w, "You are on %s route", r.URL.Path)
}

func main() {
    fmt.Println("Your Server is running on http://localhost:8000")
    http.HandleFunc("/", handler)
    http.ListenAndServe(":8000", nil)

}

/*
--- 1. fmt ,       for formattting
--- 2. net/http ,  for creating server
--- both are standard package from go 

The fmt.Fprintf function expects at least two arguments:
1. an io.Writer (w)
2. a format specifier
3. optional arguments

*/

• Run the code by following command

go run main.go 

• You will see this output in console

Your Server is running on http://localhost:8000

• Visit http://localhost:8000on browser & try to change path of URL. You will see

Hello From Go 
You are on / route

This was our simple server using Go.
That's for today. Thank You.