flaskのセッションメモ

python -m venv venv
./venv/Script/Activate
pip install flask

from flask import Flask

app = Flask(__name__)

@app.route("/")
def hello_world():
    return "<p>Hello, World!</p>"

flask run

flask --version
Python 3.9.5
Flask 2.1.2
Werkzeug 2.1.2

        val = self.get_signing_serializer(app).dumps(dict(session))  # type: ignore
+      print(dict(session))
+      print(val)
        response.set_cookie(
            name,
            val,  # type: ignore
            expires=expires,
            httponly=httponly,
            domain=domain,
            path=path,
            secure=secure,
            samesite=samesite,
        )

    def dumps(self, obj: _t.Any, salt: _t_opt_str_bytes = None) -> _t_str_bytes:
        """Returns a signed string serialized with the internal
        serializer. The return value can be either a byte or unicode
        string depending on the format of the internal serializer.
        """
        payload = want_bytes(self.dump_payload(obj))
        rv = self.make_signer(salt).sign(payload)

+        print(payload)
+        print(rv)
+       print(salt)
        if self.is_text_serializer:
            return rv.decode("utf-8")

        return rv

b'eyJpZCI6InRlc3QifQ'
b'eyJpZCI6InRlc3QifQ.YrVHSw._CNZ3421DGZWaHoltGppQ2y1H84'
None

 pip install flask_login

from flask import Flask, session
import flask_login

app = Flask(__name__)

app.secret_key = 'sample'
login_manager = flask_login.LoginManager()
login_manager.init_app(app)

@app.route("/")
def hello_world():
	session['id'] = 'test'
	return "<p>Hello, World!</p>"

class User(flask_login.UserMixin):
    def __init__(self, user_id):
        self.id = user_id

@login_manager.user_loader
def load_user(user_id):
    return User(user_id)

@app.route('/login', methods=['GET', 'POST'])
def login():
    # validationチェック
		user = User('sample')
		flask_login.login_user(user)
		# ログインに成功したらmemberページへ飛びます
		return "OK"

@app.route("/")
def hello_world():
	session['id'] = 'test'
	session['_id'] = '0123456789123456789012345678901234567890123456789012345678901234567890'
	return "<p>Hello, World!</p>"