flask.json JSONEncoder Example Code

JSONEncoder is a class within the Flask project under the flask.json module. JSONEncoder is the default JSON encoder for Flask and was designed to handle more types than Python's standard library json module.

jsonify is another callable from the flask.json package with code examples.

Example 1 from Flask-Security-Too

Flask-Security-Too (PyPi page and project documentation) is a maintained fork of the original Flask-Security project that makes it easier to add common security features to Flask web applications. A few of the critical goals of the Flask-Security-Too project are ensuring JavaScript client-based single-page applications (SPAs) can work securely with Flask-based backends and that guidance by the OWASP organization is followed by default.

The Flask-Security-Too project is provided as open source under the MIT license.

Flask-Security-Too / flask_security / core.py

# core.py

from datetime import datetime, timedelta
import re
import typing as t
import warnings

import pkg_resources
from flask import _request_ctx_stack, current_app
from flask.json import JSONEncoder
from flask_login import AnonymousUserMixin, LoginManager
from flask_login import UserMixin as BaseUserMixin
from flask_login import current_user
from flask_principal import Identity, Principal, RoleNeed, UserNeed, identity_loaded
from flask_wtf import FlaskForm
from itsdangerous import URLSafeTimedSerializer
from passlib.context import CryptContext
from werkzeug.datastructures import ImmutableList
from werkzeug.local import LocalProxy

from .babel import FsDomain
from .decorators import (
from .forms import (

## ... source file continues with no further JSONEncoder examples...

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