Flask-JSONPlus

Flask extension for non-basic types’ serialization to JSON via jsonplus lib.

Install

Install from PyPI:

pip install Flask-JSONPlus

Enable in your Flask app (probably your app/__init__.py):

from flask_jsonplus import FlaskJSONPlus

app = Flask(__name__)

app.config['JSONPLUS_EXACT'] = True

jsonplus = FlaskJSONPlus(app)

Usage

After you enable FlaskJSONPlus, Flask will start to use jsonplus internally for JSON (de-)serialization. For example, jsonify will properly serialize your rich data:

import datetime, fractions, decimal, collections

@app.route('/api/demo')
def api_demo():
    Point = collections.namedtuple('Point', 'x y')
    data = {
        'third': fractions.Fraction(1, 3),
        'dec': decimal.Decimal('0.1'),
        'now': datetime.datetime.now(),
        'set': set(range(3)),
        'tuple': (3, 1, 4),
        'namedtuple': Point(3, 4)
    }
    return jsonify(data)

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