Building a Web Application in Go: An Introduction to Web Development

January 28, 2024

In this final post, readers are introduced to building web applications in Go. The post covers the basics of web development in Go, including routing, handling HTTP requests, and serving web pages, providing a solid foundation for further exploration.

Routing in Go

Routing in Go involves directing incoming HTTP requests to the appropriate handler functions. This can be achieved using the net/http package, which provides a flexible and powerful routing mechanism.

func main() {
    http.HandleFunc("/", handlerFunc)
    http.ListenAndServe(":8080", nil)
}

Handling HTTP Requests

When a request is received by the server, it needs to be handled appropriately. This can involve parsing request parameters, reading request bodies, and validating input. Go provides a clean and efficient way to handle HTTP requests using the net/http package.

func handlerFunc(w http.ResponseWriter, r *http.Request) {
    // Handle the incoming request
}

Serving Web Pages

Web applications often need to serve HTML pages to the client. In Go, this can be achieved by writing the necessary HTML directly in the handler function or by using templates to generate dynamic content.

func handlerFunc(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "<!DOCTYPE html>\n")
    // Write the HTML response
}

By mastering these fundamental concepts, readers will be well-equipped to delve deeper into web development in Go, exploring topics such as middleware, authentication, and database integration.