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Creating a Simple HTTP Server

Go has a powerful net/http package to build web servers.

package main

import (
    "fmt"
    "net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintln(w, "Hello, World!")
}

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

Create routes with http.HandleFunc and start the server with ListenAndServe. Handlers take http.ResponseWriter and *http.Request.

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