Creating HTTP Web Server in Go

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I recently started learning Go, as my choice for backend development & DevOps tooling. I find Go quite similar to JavaScript (as in syntax) & It is going good so far. In order to avoid the trap of tutorial hell, I am adventuring on learn by doing approach.

This is my first project in Go. So here is how to create HTTP web server in Go.


Setup a module

First, create a new directory for your project and initialize a Go module using the following command:

mkdir webserver
go mod init webserver

You can keep replace webserver with the any desired name for your module.

Create main.go

Navigate to webserver directory & create main.go file.

cd webserver

touch main.go

Import the packages

Now launch your code editor & in your main.go file, import the required packages for building an HTTP server:

package main

import (

Implement the main function

Create the main function to start the server and register the handler function to handle requests:

func main() {
	fileServer := http.FileServer(http.Dir("./static"))

	http.HandleFunc("/page", anotherPage)
	http.Handle("/", fileServer)

	fmt.Printf("Starting serving at port 8080")
	err := http.ListenAndServe(":8080", nil)

Handler Function

This handler function will handle the request for anotherPage.

func anotherPage(w http.ResponseWriter, r *http.Request){
	w.Write([]byte("Welcome to Another Page"))

Static Files

Create a new directory at the root named static and create index.html inside it.

mkdir static

touch static/index.html

Populate desired HTML content in the page or copy paste this.

This is how your project directory will look like:

tree .
├── go.mod
├── main.go
└── static
    └── index.html

2 directories, 3 files

Run the server

Open a terminal, navigate to the project directory, and run the following command to start the server:

go run main.go

Test the server

Open a web browser and visit http://localhost:8080 (or the desired port you specified in the http.ListenAndServe function). You should see the HTML page displayed. If you visit to http://localhost:8080/page you should see another page reading “Welcome to another page”.


So that is how we create a basic HTTP web server in Go. It uses functions, routes, handlers, listens & responds to http requests and servers a static HTML file. You can find the entire source code on Github.

That is all for now. I am still in learning phase & I will be sharing more projects in future based on Go.

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