ydm/inspectHttpDefaultClientRequest.go

## inspectHttpDefaultClientRequest.go
package main

import (
	"context"
	"errors"
	"fmt"
	"io"
	"net/http"
	"time"
)

var errHTTPErrorResponse = errors.New("HTTP error response")

func httpClientDisallowRedirects(_ *http.Request, _ []*http.Request) error {
	return http.ErrUseLastResponse
}

func makeClient() http.Client {
	return http.Client{
		Timeout:       time.Second,
		CheckRedirect: httpClientDisallowRedirects,
	}
}

func main() {
	client := makeClient()
	// client := http.DefaultClient

	ctx := context.Background()
	// ctx = context.WithTimeout(ctx, time.Second)
	req, err := http.NewRequestWithContext(ctx, "GET", "http://127.0.0.1:8080/", nil)
	if err != nil {
		panic(err)
	}

	resp, err := client.Do(req)
	fmt.Println("RESPONSE ERROR:", err)
	fmt.Println("CONTEXT ERROR:", ctx.Err())

	if resp != nil {
		fmt.Println("RESPONSE:", resp.Status)
		if resp.StatusCode < 400 {
			bodyBytes, err := io.ReadAll(resp.Body)
			if err != nil {
				panic(fmt.Errorf("could not read error response body for status code %d: %w", resp.StatusCode, err))
			}
			fmt.Println(string(bodyBytes))
		} else {
			panic(fmt.Errorf("%w: %d", errHTTPErrorResponse, resp.StatusCode))
		}
	}
}

## server.py
#!/usr/bin/env python

import time
from http.server import BaseHTTPRequestHandler, HTTPServer


class SimpleDelayedHTTPRequestHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        time.sleep(1.2)

        self.send_response(200)

        self.send_header('Content-type', 'text/html')
        self.end_headers()

        response_message = "<html><body><h1>Hello, World!</h1></body></html>"
        self.wfile.write(response_message.encode('utf-8'))

def run(server_class=HTTPServer, handler_class=SimpleDelayedHTTPRequestHandler, port=8080):
    server_address = ('', port)
    httpd = server_class(server_address, handler_class)
    print(f'Starting http server on port {port}...')
    httpd.serve_forever()

if __name__ == '__main__':
    run()
	package main

	import (
	"context"
	"errors"
	"fmt"
	"io"
	"net/http"
	"time"
	)

	var errHTTPErrorResponse = errors.New("HTTP error response")

	func httpClientDisallowRedirects(_ http.Request, _ []http.Request) error {
	return http.ErrUseLastResponse
	}

	func makeClient() http.Client {
	return http.Client{
	Timeout: time.Second,
	CheckRedirect: httpClientDisallowRedirects,
	}
	}

	func main() {
	client := makeClient()
	// client := http.DefaultClient

	ctx := context.Background()
	// ctx = context.WithTimeout(ctx, time.Second)
	req, err := http.NewRequestWithContext(ctx, "GET", "http://127.0.0.1:8080/", nil)
	if err != nil {
	panic(err)
	}

	resp, err := client.Do(req)
	fmt.Println("RESPONSE ERROR:", err)
	fmt.Println("CONTEXT ERROR:", ctx.Err())

	if resp != nil {
	fmt.Println("RESPONSE:", resp.Status)
	if resp.StatusCode < 400 {
	bodyBytes, err := io.ReadAll(resp.Body)
	if err != nil {
	panic(fmt.Errorf("could not read error response body for status code %d: %w", resp.StatusCode, err))
	}
	fmt.Println(string(bodyBytes))
	} else {
	panic(fmt.Errorf("%w: %d", errHTTPErrorResponse, resp.StatusCode))
	}
	}
	}
	#!/usr/bin/env python

	import time
	from http.server import BaseHTTPRequestHandler, HTTPServer


	class SimpleDelayedHTTPRequestHandler(BaseHTTPRequestHandler):
	def do_GET(self):
	time.sleep(1.2)

	self.send_response(200)

	self.send_header('Content-type', 'text/html')
	self.end_headers()

	response_message = "<html><body><h1>Hello, World!</h1></body></html>"
	self.wfile.write(response_message.encode('utf-8'))

	def run(server_class=HTTPServer, handler_class=SimpleDelayedHTTPRequestHandler, port=8080):
	server_address = ('', port)
	httpd = server_class(server_address, handler_class)
	print(f'Starting http server on port {port}...')
	httpd.serve_forever()

	if __name__ == '__main__':
	run()