Re-use HTTP connection (Keep-alive)

package main

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

func main() {
    req, err := http.NewRequest(http.MethodGet, "https://github.com", nil)
    if err != nil {
        fmt.Println(err.Error())
        return
    }
    client := &http.Client{}
    i := 0
    for {
        resp, err := client.Do(req)
        if err != nil {
            fmt.Println(err.Error())
            return
        }
        _, _ = readBody(resp.Body)
        fmt.Println("done ", i)
        time.Sleep(5 * time.Second)
    }
}

func readBody(readCloser io.ReadCloser) ([]byte, error) {
    defer readCloser.Close()
    body, err := ioutil.ReadAll(readCloser)
    if err != nil {
        return nil, err
    }
    return body, nil
}

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