HTTP server in go

server.go

package main

import (
    "fmt"
    "net"
    "io/ioutil"
)

// optional to view the structure of request
func exploreRequest(conn net.Conn) {
    // I assume
    // as the connection isn't closed
    // it will wait to read more bytes
    // so it will be blocking
    // server won't receive anything
    resp, err := ioutil.ReadAll(conn);

    if err != nil {
        fmt.Println("error while reading")
    }
    fmt.Println("Data from URL:", string(resp))
}

func handleRequest(conn net.Conn) {
    defer conn.Close()
    
    // parse incoming request
    // exploreRequest(conn)

    // send a response
    response := "HTTP/1.1 200 OK\r\nContent-Length: 12\r\n\r\nHello, world!"
    conn.Write([]byte(response))
}

func main() {
    listener, err := net.Listen("tcp", ":8080")
    if err != nil {
        fmt.Println("Error starting server", err)
        return
    }
    // free resourse when function returns
    defer listener.Close()


    // server is ok to start
    fmt.Println("server is listening on port 8080")


    // we need a infinite loop, which will serve the request
    for {
        // blocks the loop untill a request is made
        conn, err := listener.Accept();
        fmt.Println("conn is accepted")

        if err != nil {
            fmt.Println("Error accepting connection:", err)
            continue
        }

        // handle the request
        // it shouldn't block the next request
        // so running in seperate thread
        // this is go routine
        go handleRequest(conn)
    }
}