httpClientExample

package main

import (
	"errors"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

type Client struct {
	host     string
	endpoint string
	client   http.Client
}

func redirectPolicyFunc(*http.Request, []*http.Request) error {
	return errors.New("disabled")
}

func main() {
	client := http.Client{CheckRedirect: redirectPolicyFunc}
	cl := Client{"https://golang.org/", "pkg/net/http/", client}
	req := cl.getRequest()
	res, err := cl.getResponse(req)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("Status: %d\n", res.StatusCode)
	str, err := getVersion(res)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(str)
}

func (c *Client) getRequest() *http.Request {
	url := c.host + c.endpoint
	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		return nil
	}
	return req
}

func (c *Client) getResponse(req *http.Request) (*http.Response, error) {
	return c.client.Do(req)
}

func getVersion(res *http.Response) (string, error) {
	defer res.Body.Close()
	body, err := ioutil.ReadAll(res.Body)
	if err != nil || res.StatusCode != 200 {
		return "", err
	}
	return string(body), err
}