flask.json JSONEncoder Example Code

# utils.py
import abc
import base64
import datetime
from functools import partial
import hashlib
import hmac
import time
from typing import Dict, List
import warnings
from datetime import timedelta
from urllib.parse import parse_qsl, parse_qs, urlsplit, urlunsplit, urlencode
import urllib.request
import urllib.error

from flask import (
    _request_ctx_stack,
    after_this_request,
    current_app,
    flash,
    g,
    request,
    session,
    url_for,
)
from flask.json import JSONEncoder
from flask_login import login_user as _login_user
from flask_login import logout_user as _logout_user
from flask_login import current_user
from flask_login import COOKIE_NAME as REMEMBER_COOKIE_NAME
from flask_principal import AnonymousIdentity, Identity, identity_changed, Need
from flask_wtf import csrf
from wtforms import ValidationError
from itsdangerous import BadSignature, SignatureExpired
from werkzeug.local import LocalProxy
from werkzeug.datastructures import MultiDict

from .quart_compat import best, get_quart_status
from .signals import user_authenticated

_security = LocalProxy(lambda: current_app.extensions["security"])

_datastore = LocalProxy(lambda: _security.datastore)

_pwd_context = LocalProxy(lambda: _security.pwd_context)

_hashing_context = LocalProxy(lambda: _security.hashing_context)

localize_callback = LocalProxy(lambda: _security.i18n_domain.gettext)



## ... source file abbreviated to get to JSONEncoder examples ...


        accept_mimetypes.best = best
    if accept_mimetypes.best == "application/json":
        return True
    return False


def json_error_response(errors):
    if isinstance(errors, str):
        response_json = dict(error=errors)
    elif isinstance(errors, dict):
        response_json = dict(errors=errors)
    else:
        raise TypeError("The errors argument should be either a str or dict.")

    return response_json


class FsJsonEncoder(JSONEncoder):

    def default(self, obj):
        from .babel import is_lazy_string

        if is_lazy_string(obj):
            return str(obj)
        else:
            return JSONEncoder.default(self, obj)


class SmsSenderBaseClass(metaclass=abc.ABCMeta):
    def __init__(self):
        pass

    @abc.abstractmethod
    def send_sms(self, from_number, to_number, msg):  # pragma: no cover
        return


class DummySmsSender(SmsSenderBaseClass):
    def send_sms(self, from_number, to_number, msg):  # pragma: no cover
        return


class SmsSenderFactory:
    senders = {"Dummy": DummySmsSender}

    @classmethod
    def createSender(cls, name, *args, **kwargs):
        return cls.senders[name](*args, **kwargs)


    return _security._render_json(payload, code, headers=None, user=user)


def default_want_json(req):
    if req.is_json:
        return True
    accept_mimetypes = req.accept_mimetypes
    if not hasattr(req.accept_mimetypes, "best"):  # pragma: no cover


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