HTTP Basic Auth Encoder

import base64

def encode_basic_auth(username: str, password: str) -> str:
    credentials = f"{username}:{password}"
    encoded = base64.b64encode(credentials.encode("utf-8")).decode("utf-8")
    return f"Basic {encoded}"

def decode_basic_auth(header_value: str) -> tuple[str, str]:
    b64 = header_value.removeprefix("Basic ").strip()
    decoded = base64.b64decode(b64).decode("utf-8")
    username, _, password = decoded.partition(":")
    return username, password

header = encode_basic_auth("admin", "secret")
print(header)  # Basic YWRtaW46c2VjcmV0

user, pwd = decode_basic_auth(header)
print(f"Username: {user}, Password: {pwd}")