Contoh
Contoh praktis yang mendemonstrasikan berbagai skenario encoding dan decoding Base64.
Contoh Teks Dasar
Encoding Teks Sederhana
Input: "Hello, World!"
Output: "SGVsbG8sIFdvcmxkIQ=="
Decoding Teks Sederhana
Input: "SGVsbG8sIFdvcmxkIQ=="
Output: "Hello, World!"
Teks Multibahasa
Input: "你好，世界！"
Output: "5L2g5aW9LCDkuJbnlYwh"
Karakter Khusus
Input: "Hello @#$%^&*()"
Output: "SGVsbG8gQCMkJV4mKigp"
Contoh URL Safe
Standar ke URL Safe
Input: "Hello, World!"
Standar: "SGVsbG8sIFdvcmxkIQ=="
URL Safe: "SGVsbG8sIFdvcmxkIQ"
Encoding Parameter URL
Input: "user@example.com"
URL Safe: "dXNlckBleGFtcGxlLmNvbQ"
Encoding Nama File
Input: "my file (1).txt"
URL Safe: "bXkgZmlsZSAoMSkudHh0"
Contoh File
File Gambar
File: small-image.png (1KB)
Base64: iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8/5+hHgAHggJ/PchI7wAAAABJRU5ErkJggg==
File Teks
File: document.txt
Konten: "This is a sample document."
Base64: "VGhpcyBpcyBhIHNhbXBsZSBkb2N1bWVudC4="
Data JSON
Input: {"name": "John", "age": 30}
Output: "eyJuYW1lIjogIkpvaG4iLCAiYWdlIjogMzB9"
Contoh Programming
HTML Data URI
<!-- Menyematkan gambar langsung di HTML -->
<img
src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8/5+hHgAHggJ/PchI7wAAAABJRU5ErkJggg=="
alt="Gambar kecil"
/>
JavaScript Fetch API
// Mengirim data Base64 melalui fetch
const base64Data = 'SGVsbG8sIFdvcmxkIQ==';
fetch('/api/upload', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
data: base64Data,
type: 'text',
}),
});
Contoh Email
Attachment Email
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="boundary123"
--boundary123
Content-Type: text/plain; charset=UTF-8
This is the email body.
--boundary123
Content-Type: application/pdf; name="document.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="document.pdf"
JVBERi0xLjQKJcOkw7zDtsO8CjIgMCBvYmoKPDwKL0xlbmd0aCAzIDAgUgo+PgpzdHJlYW0K...
Contoh Integrasi API
Request REST API
{
"action": "encode",
"data": "Hello, World!",
"format": "standard"
}
Response REST API
{
"success": true,
"result": "SGVsbG8sIFdvcmxkIQ==",
"inputSize": 13,
"outputSize": 18
}
Contoh Database
SQL Insert
INSERT INTO documents (name, content_base64)
VALUES ('document.txt', 'VGhpcyBpcyBhIHNhbXBsZSBkb2N1bWVudC4=');
SQL Select
SELECT name,
CONVERT_FROM(DECODE(content_base64, 'base64'), 'UTF8') as content
FROM documents
WHERE id = 1;
Contoh Penanganan Error
Base64 Tidak Valid
Input: "Hello World!" (bukan Base64 yang valid)
Error: "Format string Base64 tidak valid"
Base64 Tidak Lengkap
Input: "SGVsbG8gV29ybGQ" (padding hilang)
Error: "Format string Base64 tidak valid"
File Terlalu Besar
Input: large-file.zip (15MB)
Error: "Ukuran file melebihi batas maksimum 10MB"
Contoh-contoh ini mendemonstrasikan keserbagunaan dan aplikasi praktis dari encoding Base64 dalam berbagai skenario dunia nyata.