cdb

/* Copyright 2023, Antoine Catton
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

package main

import (
	"fmt"
	"io"
)

func getContent() Content {
	return &KeyValueMapString{
		Map: map[string]string{"foo": "bar"},
	}
}

func main() {
	var content Content = getContent()
	for content.Next() {
		kv := content.KeyValue()
		key, err := io.ReadAll(kv.Key)
		if err != nil {
			fmt.Printf("ERROR: while reading key: %v\n", err)
		}
		value, err := io.ReadAll(kv.Value)
		if err != nil {
			fmt.Printf("ERROR: while reading value: %v\n", err)
		}
		fmt.Printf("%q=%q\n", key, value)
	}
	if err := content.Err(); err != nil {
		fmt.Printf("ERROR: while scanning content: %v\n", err)
	}
}

Output:

"foo"="bar"