nativehttp

commit e22db7bfbaa268c9abd78fc1b803d82ca8691da6
parent 8528e2bfb0445b02a42aa96ea23415459306517f
Author: Jack Mordaunt <jackmordaunt.dev@gmail.com>
Date:   Mon, 12 Feb 2024 19:00:31 +0800

example/get: add simple example

Signed-off-by: Jack Mordaunt <jackmordaunt.dev@gmail.com>

Diffstat:
A
example/get/main.go
 | 
52
++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 52 insertions(+), 0 deletions(-)
diff --git a/example/get/main.go b/example/get/main.go
@@ -0,0 +1,52 @@
+package main
+
+import (
+	"errors"
+	"flag"
+	"io"
+	"os"
+
+	"git.sr.ht/~jackmordaunt/nativehttp"
+)
+
+func main() {
+	var (
+		uri  string
+		file string
+	)
+
+	flag.StringVar(&uri, "uri", "https://www.example.com", "uri to GET")
+	flag.StringVar(&file, "o", "file.html", "output file")
+
+	flag.Parse()
+
+	if err := downloadFile(uri, file); err != nil {
+		print("error: %v\n", err)
+	}
+}
+
+func downloadFile(url, file string) (err error) {
+	r, err := nativehttp.Get(url)
+	if err != nil {
+		return err
+	}
+
+	defer func() {
+		if e := r.Close(); e != nil {
+			err = errors.Join(err, e)
+		}
+	}()
+
+	f, err := os.OpenFile(file, os.O_CREATE|os.O_RDWR, 0o644)
+	if err != nil {
+		return err
+	}
+
+	defer f.Close()
+
+	if _, err := io.Copy(f, r); err != nil {
+		return err
+	}
+
+	return nil
+}