package main

// import the necessary dependencies
import (
    "fmt"
    "io"
    "net/http"
    "math/rand"
)

func main() {
    // list of User-Agent strings
    var userAgents = []string{
    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36",
    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36",
    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36",
    // add more UA strings as needed
    }

    // select a random UA from the list
    randomIndex := rand.Intn(len(userAgents))
    randomUA := userAgents[randomIndex]

    // create custom HTTP client with custom Transport
    client := &http.Client{
        Transport: &http.Transport{},
    }

    // create HTTP request
    req, err := http.NewRequest("GET", "https://httpbin.io/user-agent", nil)
    if err != nil {
        fmt.Println("Error:", err)
        return
    }

    // set User-Agent header
    req.Header.Set("User-Agent", randomUA)

    // make HTTP request
    response, err := client.Do(req)
    if err != nil {
        fmt.Println("Error:", err)
        return
    }
    // close the response body
    defer response.Body.Close()

    // read the response body
    body, err := io.ReadAll(response.Body)
    if err != nil {
        fmt.Println("Error:", err)
        return
    }

    // print the text content
    fmt.Println(string(body))
}