httpClient.go

package main

import (
	"bytes"
	"fmt"
	"io"
	"io/ioutil"
	"net/http"
	"net/url"
	"os"
	"time"
)

func sendGet() {
	var c http.Client
	resp, err := c.Get("http://httpbin.org/get")
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
	content, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(content))
}

func sendPost() {
	resp, err := http.Post("http://httpbin.org/post", "application/json", bytes.NewBuffer([]byte(` {'a':'b'} `)))
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
	content, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(content))
}

func sendPostForm() {
	resp, err := http.PostForm("http://httpbin.org/post", url.Values{"name": {"Maksadbek"},
		"id": {"123"}})
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
	content, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(content))
}
func sendPostAndWrite() {
	resp, err := http.Post("http://httpbin.org/post", "application/json", bytes.NewBuffer([]byte(` {'a':'b'} `)))
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
	f, err := os.Create("downloaded")
	if err != nil {
		panic(err)
	}
	defer f.Close()
	r := SlowReader{Delay: 100 * time.Millisecond, R: resp.Body}
	_, err = io.Copy(f, r)
	if err != nil {
		panic(err)
	}
}

type SlowReader struct {
	Delay time.Duration
	R     io.Reader
}

func (s SlowReader) Read(p []byte) (int, error) {
	time.Sleep(s.Delay)
	return s.R.Read(p[:1])
}
func main() {
	sendPostForm()
}