Flask exemplo simples de autenticacao

app.py

from functools import wraps
from flask import Flask, escape, request, make_response

app = Flask(__name__)

USERS = {"fabio": "12345", "italo": "abcde"}


def login_required(func):
    @wraps(func)
    def wrapper(*args, **kwargs):
        auth = request.authorization
        unauthorized_response = make_response(
            "unauthorized",
            401,
            {"WWW-Authenticate": 'Basic realm="Faz login ai doido!"'},
        )
        if auth is None:
            return unauthorized_response

        username = request.authorization.username
        if username not in USERS:
            return unauthorized_response

        password = request.authorization.password
        if USERS[username] != password:
            return unauthorized_response

        request.username = username

        return func(*args, **kwargs)

    return wrapper


@app.route("/")
def index():
    return "Index, auth is not needed here! :D"


@app.route("/admin")
@login_required
def admin():
    return f"Admin, thanks, you are logged in, {escape(request.username)}"