go context / published by https://github.com/dacr/code-examples-manager #7c71a8a9-8170-4ade-b396-58834bd30b03/58276355af21d0cef4f0455802c4b2608ea06831

concurrency-context.go

/*?sr/bin/true; exec /usr/bin/env nix-shell -p go --run "go run $0" #*/
// summary : go context
// keywords : go, context, @testable
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : 7c71a8a9-8170-4ade-b396-58834bd30b03
// created-on : 2025-03-27T16:56:13+01:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : nix-shell -p go --run "go run $file"
package main

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

func main() {
	// TODO => useful for example for tests, to study...

	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
	defer cancel()

	req, _ := http.NewRequestWithContext(ctx, "GET", "https://example.com", nil)

	resp, err := http.DefaultClient.Do(req)

	if err != nil {
		println("Error:", err.Error())
		return
	}
	defer resp.Body.Close()

	body, err := io.ReadAll(resp.Body)
	if err != nil {
		println("Error reading body:", err.Error())
		return
	}

	bodyAsString := string(body)
	println("Response Body:", bodyAsString)
}