package main
import ("net/http"
        "log"
        "net/url"
        )
func Login(user, password string) string {
        postUrl := "http://www.pge.com/eum/login"
        // Set up Login
        values := make(url.Values)
        values.Set("user", user)
        values.Set("password", password)
        // Submit form
        resp, err := http.PostForm(postUrl, values)
        if err != nil {
                log.Fatal(err)
        }
        defer resp.Body.Close()
        
        // How do I store cookies?
        return "Hello"
}
 
func ViewBill(url string, cookies) string {
//What do I put here?
}

import (
	"net/http"
	"net/http/cookiejar"
)
jar, err := cookiejar.New(nil)
if err != nil { 
  // error handling 
}
client := &http.Client{
	Jar: jar,
}

package main
import (
    "fmt"
    "net/http"
    "net/url"
    "io/ioutil"
    "sync"
)
type Jar struct {
    lk      sync.Mutex
    cookies map[string][]*http.Cookie
}
func NewJar() *Jar {
    jar := new(Jar)
    jar.cookies = make(map[string][]*http.Cookie)
    return jar
}
// SetCookies handles the receipt of the cookies in a reply for the
// given URL.  It may or may not choose to save the cookies, depending
// on the jar's policy and implementation.
func (jar *Jar) SetCookies(u *url.URL, cookies []*http.Cookie) {
    jar.lk.Lock()
    jar.cookies[u.Host] = cookies
    jar.lk.Unlock()
}
// Cookies returns the cookies to send in a request for the given URL.
// It is up to the implementation to honor the standard cookie use
// restrictions such as in RFC 6265.
func (jar *Jar) Cookies(u *url.URL) []*http.Cookie {
    return jar.cookies[u.Host]
}
func main() {
    jar := NewJar()
    client := http.Client{nil, nil, jar}
    resp, _ := client.PostForm("http://www.somesite.com/login", url.Values{
	    "email": {"myemail"},
	    "password": {"mypass"},
    })
    resp.Body.Close()
    resp, _ = client.Get("http://www.somesite.com/protected")
    b, _ := ioutil.ReadAll(resp.Body)
    resp.Body.Close()
    fmt.Println(string(b))
}

package main                                                                                              
import "fmt"
import "net/http"
import "io/ioutil"
import "strings"
func main() {
    // Declare http client
    client := &http.Client{}
    // Declare post data
    PostData := strings.NewReader("useId=5&age=12")
    // Declare HTTP Method and Url
    req, err := http.NewRequest("POST", "http://localhost/", PostData)
    // Set cookie
    req.Header.Set("Cookie", "name=xxxx; count=x")
    resp, err := client.Do(req)
    // Read response
    data, err := ioutil.ReadAll(resp.Body)
    // error handle
    if err != nil {
        fmt.Printf("error = %s \n", err);
    }   
    // Print response
    fmt.Printf("Response = %s", string(data));
}           

package main
import "net/http"
func main() {
   res, err := http.Get("https://stackoverflow.com")
   if err != nil {
      panic(err)
   }
   for _, c := range res.Cookies() {
      println(c.Name, c.Value)
   }
}

package main
import "net/http"
func main() {
   req, err := http.NewRequest("GET", "https://stackoverflow.com", nil)
   if err != nil {
      panic(err)
   }
   req.AddCookie(&http.Cookie{Name: "west", Value: "left"})
}

	expiration := time.Now().Add(5 * time.Minute)
	cookie := http.Cookie{Name: "myCookie", Value: "Hello World", Expires: expiration}
	http.SetCookie(w, &cookie)